Tamron 28-75mm f/2.8 Xr Di

[form]

For me, it was a decentered element. I believe that is also your issue. If the outer elements are clean, and the issue doesn't occur on other lenses, then it is most likely the lens' internal components which are at fault.

A possible way of confirming this would be to manually adjust the focus and see if you can sharpen the soft side...and watch what happens to the other parts of the image which were sharp before. Following the process, see if they gradually get softer as the one part gets sharper, or, if all parts are sharp at some point, which side/area gets soft first. It was my experience that the right side would get sharper as the left and center would blur, and the right side didn't have nearly the same depth of field as the left and center did.

I believe that Tamron has a 6-year warranty for all their lenses, but if you didn't buy the lens new or have the receipt/etc, then that could be a problem.

Unlike all the other equipment I've bought, I haven't had any call to warranty my Tamron lens, so I don't know how their service is. You might call them and ask them about the issue, but I believe it's only fair that such a defect should be repaired, or else the lens replaced.

[sanil]

one of the first pics with the lens, of my two year old nephew

[In2Photos]

A couple more from two weeks ago.

http://photography-on-the.net/forum/attachment.php?attachmentid=93780&d=1152850242

http://photography-on-the.net/forum/attachment.php?attachmentid=93781&d=1152850242

[sanil]

in2, your first pic is delightful

[Soto]

Some pictures with my Tamron...

http://www.templeofheads.com/ftp/sonesta.jpg

http://www.templeofheads.com/ftp/eye.jpg

http://www.templeofheads.com/ftp/plane.jpg

http://www.templeofheads.com/ftp/shade.jpg

[In2Photos]

in2, your first pic is delightful

Thanks sanil.

[fifty50]

Some pictures with my Tamron...

http://www.templeofheads.com/ftp/sonesta.jpg


ok, not to bring up an old thread. but is that the maho beach resort in st martin? i stayed there back in '03 :lol:

i def want to go back to sxm

[Soto]

ok, not to bring up an old thread. but is that the maho beach resort in st martin? i stayed there back in '03 :lol:

i def want to go back to sxm

Yes it is.... it's a great place to stay...

[JaGWiRE]

Curious if these pictuers look "sharp" taken with this lens (looking to buy, seller provided these photos as exemplars.)

[LightRules]

Curious if these pictuers look "sharp" taken with this lens (looking to buy, seller provided these photos as exemplars.)

They don't look sharp at all. Of course, I can't see them! :lol:

[JimAskew]

http://i.pbase.com/o4/00/541100/1/55545787.IMG_3425.jpg
JusSmith,

I just "stumbled" onto this post and I have to say that your picture is simply awesome:lol: What a wonderful shot.

Congrats,

[Kristian]

A couple from me also. Haven't had it for more than 3 weeks or so. Great lens!

http://img453.imageshack.us/img453/1329/kritikku4.jpg

http://img68.imageshack.us/img68/9362/kritik2fh1.jpg

http://img453.imageshack.us/img453/900/kritik3cr3.jpg

[JaGWiRE]

They don't look sharp at all. Of course, I can't see them! :lol:


http://chank.smugmug.com/gallery/1853689

[JaGWiRE]

Still curious if the photos in the above link look sharp to you guys. To me they look fine, but I don't know too much about sharp copies. If you guys confirm it, I probably will go ahead and buy this lens.

[JMAS]

Still curious if the photos in the above link look sharp to you guys. To me they look fine, but I don't know too much about sharp copies. If you guys confirm it, I probably will go ahead and buy this lens.

The photos seem ok regarding contrast and sharpeness but more than that it is difficult to say because we don't know if he managed to focus where he intended and they are not good photos to test for CA, etc...

[JaGWiRE]

The photos seem ok regarding contrast and sharpeness but more than that it is difficult to say because we don't know if he managed to focus where he intended and they are not good photos to test for CA, etc...


Okay, well, I think I will buy it.

[05Xrunner]

Still curious if the photos in the above link look sharp to you guys. To me they look fine, but I don't know too much about sharp copies. If you guys confirm it, I probably will go ahead and buy this lens.
they look good to me..sure your not confusing the short depth of field. I think they look fine

[JaGWiRE]

These look sharp? thinking of buying this lens:
http://www.pbase.com/ctzen/spbflmisc

[JaGWiRE]

bump looking for opinions on sharpness of the lens from those photos asap. (other lens was sold before I had a chance at it :(.)

[JaGWiRE]

^^^^ If you want to see more samples with that Tamron...

www.angelsotophotography.com (http://www.angelsotophotography.com)
So you are the one selling the lens or something?

[Soto]

So you are the one selling the lens or something?

jajajaja... not, I think this the kind of lens that you never sell... ;)

[ccp900]

i sold mine to get the 24 to 105 L hehehe....but down the road i wouldnt think twice buying another copy if i needed the 2.8

[dave_bass5]

i sold mine to get the 24 to 105 L hehehe....but down the road i wouldnt think twice buying another copy if i needed the 2.8

same here although i also got a Tamron 17-50 f/2.8 as well

[JMAS]

These look sharp? thinking of buying this lens:
http://www.pbase.com/ctzen/spbflmisc

IMO those photos are not very sharp they seem a bit soft with the lens wide open, assuming the photographer focused well. I see litle to none CA though.

[05Xrunner]

These look sharp? thinking of buying this lens:
http://www.pbase.com/ctzen/spbflmisc
I think a few look nice and sharp..the Fish ones dont judge those because its hard to get a good nice razor sharp pic of a fish behind glass..especially if you are at a zoo and its low light and VERY thick glass.

The others seem to be just poor subjects to photograph to try and judge sharpness.
Are those pics taken with the specific lens you where going to buy...or are you just trying to get an idea how this lens performs in general.
This lens can give great IQ
http://i12.photobucket.com/albums/a224/05Xrunner/IMG_6995.jpg

[richard_a]

A couple from my Tamron.... I should use it more often.

http://k47.pbase.com/v3/54/37354/1/50717953.IMG_160201.jpg
http://k53.pbase.com/o4/54/37354/1/60036204.IMG_0290.jpg

[JaGWiRE]

Question:

If you buy a lens, and it's unsharp or whatever, are you out of luck, or can you send it to Tamron?

Am I worrying too much about not getting a sharp copy?

[05Xrunner]

you can send it to tamron...the more you worry about this..the more when you get it you are gonna go insane on trying to find its flaws and then think you got a crappy lens but you dont cause you are just trying to find its faults....buy one...use it takings pics you want and see how they look. dont go doing tests unless u find that something might really be wrong.

[gospastic]

i just got this lens a couple days ago. it's so sharp! i like it a lot so far.

http://img68.imageshack.us/img68/5308/thornsnw0.jpg

[JaGWiRE]

you can send it to tamron...the more you worry about this..the more when you get it you are gonna go insane on trying to find its flaws and then think you got a crappy lens but you dont cause you are just trying to find its faults....buy one...use it takings pics you want and see how they look. dont go doing tests unless u find that something might really be wrong.

That's what I thought, thanks.

[katiesmom99]

I really need to stay out of this thread...

[JaGWiRE]

Man I must be getting annoying, but I seem to keep missing every deal.

Does this one look sharp?
http://ca.pg.photos.yahoo.com/ph/rtu99/album?.dir=/7af9re2&.src=ph&.tok=phhpMiFBP72D7Ned

I realise the photos are not thet best. 7/8 were raw converted to jpeg, no PP.

[Soto]

We should do a contest... The best picture with this Tamron...

[Kadath]

Couple Macro shots from my favorite lens!

http://www.flickr.com/photos/kadath/sets/72157594297058909/

[Ogrt48]

I got this lens a few months ago, I love it so much. It's my 2nd fav. lens after my macro. <3

[Khaled]

Here are a couple of shots taken with my new Tamron 28-75 lens ..

http://homepage.mac.com/iraqi/Sites/public/Flowers%202006-09-22%20035722PM.jpg

http://homepage.mac.com/iraqi/Sites/public/Flowers%202006-09-22%20035814PM.jpg

[molesrkool]

a product test shot with my tamron
great lens. very sharp but i hate the focusing.. its kinda slow (im used to usm)
http://i20.photobucket.com/albums/b220/molesrkool/CanonEF70-200f4L.jpg

[charles_law]

I'm looking to buy this lens and have found a local seller, when I got test this lens anything in particular I should look for?

[Soto]

My Tamron rocks......

http://www.angelsotophotography.com/images/vivanativa_enanitos/viva03.jpg

[Margie]

I have been looking for a walk around lens to replace my 17-55 kit lens for my 350D. I am very impressed with all of these photos and just placed my order with Buydig. Tamaron has a $ 30.00 rebate, so it cost me $ 319.00. An excellent price I thought.
I am hoping to be as happy with it as most of you are.
I will let you know after it arrives and I have taken some pictures with it.
Thank you for helping me to make a decision about which lens to get!

Margie

[runninmann]

Wow, more than 6 months for this thread!

[steveathome]

I have recently purchased this lens, although I haven't had time to evaluate it properly yet, so far I am very pleased with this Len's.

I have even seen another thread where someone compares it with an L, I have never used an L so I couldn't comment, but I can say for the price this is a diamond of a lens.

As soon as I get a chance to take some pics of my favourite subjest - portraits - I shall post them here.

I think Tamron hit the jackpot with this Lens.

[Ogrt48]

http://img.photobucket.com/albums/v248/MattsOnlyHope/KnifeCalledLust.jpg

It's knife for taking pictures of items like this when you don't want macro. I really liked how this came out.

[steveathome]

Just a quick snap shot for now

[JunkieXL]

Pablo Lee has a great portrait gallery of pictures taken with this lens:

http://www.pbase.com/erestor

Fantastic shots, excellent lens

[Loni]

http://static.flickr.com/114/252396116_4f4058a5a5.jpg

http://static.flickr.com/96/252396124_0c8b9685e6.jpg

[Margie]

Loni,
Your photos are so nice and sharp...this lens looks like it will be great to own. Did you do any sharpening after they came out of the camera?
Mine should arrive before the end of the week or early next week. I am anxious to start using it.
Margie

[In2Photos]

Here is one from the other day:

http://photography-on-the.net/forum/attachment.php?attachmentid=112872&d=1159406405

[Margie]

Looks like we had the same thing in mind...
My photo from yesterday with my new 28-77MM F/2.8 Tamron...
Maybe I got the idea from you! I had read this post before I bought mine...



i just got this lens a couple days ago. it's so sharp! i like it a lot so far.

http://img68.imageshack.us/img68/5308/thornsnw0.jpg

[nickybegood1998]

My contribution to the photo line up. All the pics are great!

http://i68.photobucket.com/albums/i6/nickybegood1998/CopyofCopyofIMG_2151.jpg

[SD929]

My copy has never been the sharpest, perhaps I'm expecting to much. I'm sending it in for calibration though.

http://static.flickr.com/40/76020882_6de144d28f.jpg
http://static.flickr.com/20/72984469_e749bc87dd.jpg
http://static.flickr.com/34/72984649_704513628f.jpg
http://static.flickr.com/20/72991186_6a9ed010f0.jpg

[gospastic]

still loving this lens.

http://img459.imageshack.us/img459/6624/notesxh0.jpg

[Margie]

Here are a few more photos that I took with my new 28-75 that arrived earlier this week.
For some reason when I am resizing my photos they are getting more contrasty...something I hadn't noticed before this week.
Margie

[runninmann]

...my new 28-75 that arrived earlier this week.
And you haven't changed your signature yet?!:D

[Margie]

And you haven't changed your signature yet?!:D

Thank you for reminding me...actually I wanted to make sure I liked it enough to keep it, which I do...
I have added it now! :D

[SoaringUSAEagle]

Some great shots above!

[Soto]

Wow... this thread has 19,001 views and 208 posts.... nice!!!

[shutterguy]

After searching the web and sifting through 14 pages of this thread, I'm ready to purchase this lens. Some awesome shots seen in this thread.

[steveathome]

Could be renamed - the Tamron L
(just kidding - dont give me stick over it) lol

[Margie]

Steve...I know you are kidding...but really for me this lens is better than my 70-200 F4 L !!! I have been looking and looking for sharpness like this lens produces...and I finally found it!
Margie

[Skrim17]

Mine arrived today!!

http://i4.photobucket.com/albums/y116/skrim/church2-1.jpg

[Margie]

Looks nice and clear...and has a further field of view than I imagined. I have only practiced on mostly up close things.

[Souwalker]

Hi
I don't mean to highjack this threard but this is a perfect example of something I'd like to ask. The pictures in this thread are nice, smooth, sharp, high quality. I am assumming they are attachements to tis thread.
What is your process to get those pictures such high quality even after reducing the size to conform to attachement rules or posting online?
When I resize my pictures, they look compressed, weird pixelation etc.
Many Thanks
Pat

[Livinthalife]

Hi
I don't mean to highjack this threard but this is a perfect example of something I'd like to ask. The pictures in this thread are nice, smooth, sharp, high quality. I am assumming they are attachements to tis thread.
What is your process to get those pictures such high quality even after reducing the size to conform to attachement rules or posting online?
When I resize my pictures, they look compressed, weird pixelation etc.
Many Thanks
Pat

I resize to 600x400 and save at quality 10 using PS

[Margie]

I downloaded a free program Power toys for window.."Image resizer"

http://www.microsoft.com/windowsxp/downloads/powertoys/xppowertoys.mspx



I just right click on any photo and say "save small" and it is the right size for uploading. Really easy...I use it to put photos in e-mails too!

Margie

[Skrim17]

I resize to 4x6 at resolution 130 and it fits the parameters for posting.

[JaGWiRE]

I downloaded a free program Power toys for window.."Image resizer"

http://www.microsoft.com/windowsxp/downloads/powertoys/xppowertoys.mspx



I just right click on any photo and say "save small" and it is the right size for uploading. Really easy...I use it to put photos in e-mails too!

Margie

I believe you lose IQ using this tool.

[Souwalker]

I downloaded a free program Power toys for window.."Image resizer"

http://www.microsoft.com/windowsxp/downloads/powertoys/xppowertoys.mspx



I just right click on any photo and say "save small" and it is the right size for uploading. Really easy...I use it to put photos in e-mails too!

Margie


Isn't Image REsizer for resizing? What about the great image quality I see on this forum all the time.
Rgds
Pat

[runninmann]

Hi
I don't mean to highjack this threard but this is a perfect example of something I'd like to ask. The pictures in this thread are nice, smooth, sharp, high quality. I am assumming they are attachements to tis thread.
What is your process to get those pictures such high quality even after reducing the size to conform to attachement rules or posting online?
When I resize my pictures, they look compressed, weird pixelation etc.
Many Thanks
PatHow do you resize for posting? Examples?

[Souwalker]

I simply take an original size jpeg straight from the CF card, bout 3mb, and use a resize software to resize to 600x400.
No PP before or after resizing.
http://photography-on-the.net/forum/showthread.php?t=221802&highlight=souwalker
Here's a link to 2 pics I resized and posted.
Rgds
Pat

[jblksmith1]

I still can't figure out how to post them on here so I am still using a link to my site. I took this with the lens on Saturday. I love this lens so much.


http://www.pbase.com/jblksmith1/image/67944817

[dave_bass5]

I dont think i have one here yet so
Have two insted ;-)
http://davepearce.smugmug.com/photos/77667944-O.jpg
http://davepearce.smugmug.com/photos/74202186-L.jpg

[Livinthalife]

Great shot Dave, I think you got the sharpEST one! ;)

[bangarang]

Man, I REALLY want to order this lense.

Question : at 2.8 would both the 50mm 1.8 and Tamron perform simliarly? I've read the 50mm performs well stopped down and if the tamron is about the same, I can save me $100 and use it towards the tamron.

Thanks for sharing the pics everyone!

[dave_bass5]

Great shot Dave, I think you got the sharpEST one! ;)
Thanks.
I must admit i shoot RAW and these have been through C1 and have a bit of sharpening allied but thats all.
It was a shame to have got rid of that lens but it was going to become redundant once i got the 17-50 f/2.8 and Canon 24-105L f/4.0

[dave_bass5]

Man, I REALLY want to order this lense.

Question : at 2.8 would both the 50mm 1.8 and Tamron perform simliarly? I've read the 50mm performs well stopped down and if the tamron is about the same, I can save me $100 and use it towards the tamron.

Thanks for sharing the pics everyone!

I doubt it but apart form the extra f/ stops the 50mm has the Tamron can do anything the Canon can and more.
Having f/1.8 is a good reason to get the Canon but i feel (and this is based on owning both) too much is placed on the 50mm being sharp. yes, it is for the money but if you have a sharp lens that covers 50mm and dont need the narrow DOF then i wouldnt bother with it if it means you get to get the Tamron instead.
I found that when i got the canon i used it a lot but having 50mm wasnt the best option indoors so i got other lens's. after a while the canon just got forgotten about. i always use a flash indoors so didnt need a fast lens and to be honest i got lazy and couldnt be bothered to keep changing lens's I do have a canon 35mm f/2.0 which is also sharp (and the fastest i won now) but even that range(!) is covered by two other sharp lens's so that doesnt get used much either.
All, IMHO of course.

[bangarang]

Thanks for the reply!

I guess I can always deal with the small amount of noise from kicking up the ISO a bit more.

Thanks for your opinion!

[kmb]

http://kuvat.huumakuva.net/albums/userpics/10002/5D_2006-07-29_17-02-51_7503.jpg

[dave_bass5]

Kalle
Fantastic shot.

[In2Photos]

Thanks for the reply!

I guess I can always deal with the small amount of noise from kicking up the ISO a bit more.

Thanks for your opinion!

IMO the 50 1.8 is a great lens for the money. But for me I wish I had saved the money and used it for a flash. I have the flash now, but I could have had it sooner. The Tamron stays on my camera about 90% of the time, usually with the flash. I can keep my shots at or below ISO400 and my aperture varies between f/2.8 and f/5.6.

[In2Photos]

Here is another recent shot with the Tamron: f/2.8, ISO 400, 1/200 with flash.

http://photography-on-the.net/forum/attachment.php?attachmentid=114799&d=1160094899

[dave_bass5]

i just found this.
last weekend i took my Tamron 17-50 f/2.8 out and also my mates borrowed 28-75 f/2.8 to compare IQ (no difference at all).
this was with the 28-75 f/2.8
http://davepearce.smugmug.com/photos/99448048-O.jpg

[Alejandro Sandoval]

My contribution to this thread.

http://static.flickr.com/66/227160206_c4f53e2416_o.jpg

[nickybegood1998]

I have probably already posted one or two pics but I just continue to love this lens. Here is my contribution for the day.

http://i68.photobucket.com/albums/i6/nickybegood1998/CopyofIMG_2283.jpg

[bangarang]

IMO the 50 1.8 is a great lens for the money. But for me I wish I had saved the money and used it for a flash. I have the flash now, but I could have had it sooner. The Tamron stays on my camera about 90% of the time, usually with the flash. I can keep my shots at or below ISO400 and my aperture varies between f/2.8 and f/5.6.

Thanks for the opinion. I have my list of things I need to buy (money pending...heh) and a flash is high on the list.

Is that picture with the child using the onboard flash or your 430ex?

[In2Photos]

Thanks for the opinion. I have my list of things I need to buy (money pending...heh) and a flash is high on the list.

Is that picture with the child using the onboard flash or your 430ex?
430EX. After getting the 430 I have NEVER used the onboard again. I didn't like the results I got when I did use it either.

[Margie]

I still can't figure out how to post them on here so I am still using a link to my site. I took this with the lens on Saturday. I love this lens so much.


http://www.pbase.com/jblksmith1/image/67944817

Your photo is beautiful!!! So nice and sharp...I got a large version and first saw the strans of hair...Wonderful lens and gal !

Margie

[Blackie]

WoW! I love this photo, awesome model and color!

My contribution to this thread.

http://static.flickr.com/66/227160206_c4f53e2416_o.jpg

[dave_bass5]

430EX. After getting the 430 I have NEVER used the onboard again. I didn't like the results I got when I did use it either.
same here.
I have always shot using my 420EX if im indoors. so much nicer
http://davepearce.smugmug.com/photos/88318733-L.jpg

[Livinthalife]

Nice reading about everyone losing touch on the 50...I have'nt touched my 50 in a LONG time...might hit the sale shelf soon. My tammy is on all the time!

Here is my addition
http://i23.photobucket.com/albums/b386/atgrzymala/Portfolio/IMG_6349E.jpg

[steveathome]

Thats a beautiful shot, i wonder if you have that one on your wall at home, I certainly would

[osiris2000]

Guys excellent photos. Geee so sharp. I have also posted on other threads as to which lens to get to subtitute my standard lens in my canon 350D. I was thinking of the Tamron 28-75mm but then saw the Tamron 17-50mm and now I am so so confused not knowing which one to get. As mentioned above photos for 28-75 are absolutely colourful, sharp and brilliant. I know some people have told me the 28-75 is excellent. Some final advise would come in handy as to which one to go for. Thanks.

Os
:)

[dave_bass5]

After having both i would say quality is the same but i much prefer the 28-75 for the extra reach.

[osiris2000]

Thanks Dave

[madhatter04]

Hey guys! I'm new to these forums and just purchased this Tamron lens after reading all the stellar reviews. However, I believe I received a "bad copy" of the lens. This is a picture I took on my Digital Rebel XT. While it looked great through the lens, this is what I got when I loaded it onto my computer, as well as every other image. The edges are soft and the colors seem to bleed into each other. I had a UV filter and the lens hood on. Would this be a bad copy? :confused:

[steveathome]

Can you give some Exif information?

[jcw122]

SICK! I was in agony about lenses all night, then I find this thread...

NEW LENSE, BABY YEAH!

[jdmoto]

using the tamron. i was just fine tuning my automotive flash photography.


http://i9.tinypic.com/2drw2ns.jpg

[Tsmith]

great shot JD

Its not in my bag any longer but it served me well.

Tamron SP AF 28-75mm f/2.8 XR Di LD (IF)
1/400s f/4.0 at 75.0mm

http://www.pbase.com/smith_xt/image/68108012/original.jpg

[Soto]

Some new pictures with the Tamron...

http://www.angelsotophotography.com/images/animal_nature/13b.jpg

http://www.angelsotophotography.com/images/places/01b.jpg

[madhatter04]

:lol: Okay, now I'm VERY sure I have a bad copy... the pictures look so great through the viewfinder, but turn soft and bleedy when taken. Great pictures, everyone! Looks like this lens will be a real keeper once I get a good one ! :lol:

[runninmann]

Hey guys! I'm new to these forums and just purchased this Tamron lens after reading all the stellar reviews. However, I believe I received a "bad copy" of the lens. This is a picture I took on my Digital Rebel XT. While it looked great through the lens, this is what I got when I loaded it onto my computer, as well as every other image. The edges are soft and the colors seem to bleed into each other. I had a UV filter and the lens hood on. Would this be a bad copy? :confused:Did you happen to take any shots without the UV filter? If so, how do they compare?

[mikez]

My friend just bought this lens but he doesn't know the process to test if it's a sharp lens and neither do I. Do you first take the picture in raw format and crop it at 100%? Thanks in advance.

[steveathome]

:lol: Okay, now I'm VERY sure I have a bad copy... the pictures look so great through the viewfinder, but turn soft and bleedy when taken. Great pictures, everyone! Looks like this lens will be a real keeper once I get a good one ! :lol:

What camera are you using and have you tried other lens's on it, are the images ok with other lens's?

Do you have another camera to try this lens on, if so what the results?

Can you show exif imformation with the bad images.

[madhatter04]

I am using the lens on my Canon Digital Rebel XT. My Canon 70-200mm L lens works fine, as does the kit lens (well, as good as that one works). I don't have another camera to test it on, but i tried it again right now and it's doing the same thing. The pictures look GREAT when I look through the viewfinder, but when they are previewed, they are blurry and out of focus as the flower picture I posted up there, and the edges of all contrasting colors are blurry.
Picture Info:
Shutter Speed: 1/100
Aperature: 2.8
iso: 100
Metering: Pattern

And yes, I tried the lens with both the UV filter on and off. The quality was the same.

[wtfmate]

I love this lens :D

http://img179.imageshack.us/img179/8075/img34822dc6.jpg

[madhatter04]

Hmmm, now I seem to think the problem is with something I'm doing... took this picture today and it came out nicely in terms of the problems I was having before:

[steveathome]

I am using the lens on my Canon Digital Rebel XT. My Canon 70-200mm L lens works fine, as does the kit lens (well, as good as that one works). I don't have another camera to test it on, but i tried it again right now and it's doing the same thing. The pictures look GREAT when I look through the viewfinder, but when they are previewed, they are blurry and out of focus as the flower picture I posted up there, and the edges of all contrasting colors are blurry.
Picture Info:
Shutter Speed: 1/100
Aperature: 2.8
iso: 100
Metering: Pattern

And yes, I tried the lens with both the UV filter on and off. The quality was the same.


Are you using the lens at the 75mm end, if so at a shutter speed of 1/100 its possible that you are moving, when pressing the shutter.

I would personally mount the camera on a tripod, if you have one and fire off some test shots and/or shoot some shots at a higher shutter speed, raising the iso if necesarry. Hopefully then you will find out then if you have a bad copy or whether it may be your technique with this lens.
Dont trust the preview screen on the camera too much.

[madhatter04]

Thanks, everyone! I tried everything to no avail... the lens ended up being faulty. I exchanged it for a new one that is simply WONDERFUL. Now, time to get cookin'! ;)

[steveathome]

glad you got it sorted

[m3incorp]

http://i20.photobucket.com/albums/b204/m3incorp/BMW860i.jpg

http://i20.photobucket.com/albums/b204/m3incorp/BMW860iCrop.jpg

[madhatter04]

Here's one taken this evening. I can certainly tell the difference! Great lens!

[Livinthalife]

Well here is some crops for you pixel peepers! ;) Love this pic, it's sooooo funny!

Exif should be intact, but here it is.
Av 2.8
Tv 1/320
Shot through glass too!
117022

117023

[Tsmith]

Its a dandy of a lens for sure.

Tamron SP AF 28-75mm f/2.8 XR Di LD (IF)
1/500s f/2.8 at 75.0mm iso100

http://www.pbase.com/smith_xt/image/68518689.jpg

[crispypie]

Sorry, I cant resist, here is another one!


117748

[Margie]

I love this lens...The photos are so nice and crisp...

[fifty50]

just got this lens a couple weeks ago. i'm still a n00b, but here's a pic i took with it the other day.

http://www.thehalfasian.com/tmp/IMG_1275.jpg

[gospastic]

this is one of the sharpest pictures i've taken i think:

http://img183.imageshack.us/img183/825/brunellosmallzu3.jpg

[gospastic]

one more:

http://img262.imageshack.us/img262/2794/botanicfountainwk4.jpg

[JaGWiRE]

one more:

http://img262.imageshack.us/img262/2794/botanicfountainwk4.jpg

Very cool, would had definitley been a great photo taking oppertunity to show off depth of field, hehe.

[jfred]

I previously posted this.. but still like it.. .so a repeat!

My parent's dog geting her moment of fame.

This picture was extracted from the RAW file by Canon EOS Viewer. ISO 100, f3.5 at 1/100 sec, Exif lists the focal length as 59mm

I've cropped out part of the picture, and "blushed over" the phone number on her tag using photoshop elements. No other post processing at all.

I've resized this 50% to display in the post, but 100% scale crop is available here (http://www.john-fredrickson.com/eos20d/tess.jpg)

http://www.john-fredrickson.com/eos20d/tess_50percent.jpg

[COKE CAN]

I look forward to buying this lens in November

[In2Photos]

my tamron arrived this week, tho now im having a dilemma, wether i got a "good" or a "bad" copy :)

some images as well

sure there might be mistakes from my side. there wasnt that much light and as well my hands might have moved during the shot, but i let people here decide what they think about my copy of the lens, any help will be appreciated :)
The full images look fine to me, but your crops appear to have been taken from areas that were not if focus. On the headphone shot, the area where the 3 vents are looks to be in focus the most and on your flower shot it looks like the flowers behind the area you used are more in focus.

[In2Photos]

hmm zoombrowser showed on the headphones shot that the focus point was on that place, and on the other crop the focus point was shown there as well :)
Unless you were using a tripod you could have moved slightly before actually firing the shutter. Remeber that the box (focus point) is larger than what you see. The focus point looks for contrast and if something is close to the box with more contrast than something inside the box the area with greater contrast will win.

[Syxxpacc]

true :) well then i think my lens isnt a faulty one :P and i got lucky with my first tamron :)

[Killie]

I'm depressed reading all these reviews, :cry: I got my tammy delivered Monday past buy not had a chance to go out and try it out properly due to work commitments. Wrong shifts, dark when I leave the house and almost dark when I get home, not possible to take camera with me to work.
The one day off I had was pouring rain. Next week before I can jump in the car and try it out somewhere. I think I'll open the bottle of malt.

[steveathome]

I'm depressed reading all these reviews, :cry: I got my tammy delivered Monday past buy not had a chance to go out and try it out properly due to work commitments. Wrong shifts, dark when I leave the house and almost dark when I get home, not possible to take camera with me to work.
The one day off I had was pouring rain. Next week before I can jump in the car and try it out somewhere. I think I'll open the bottle of malt.


You could always take a self portrait lol.

[fifty50]

http://photography.thehalfasian.com/images/IMG_1372.jpg

[madhatter04]

Took this during my mini-vacation to see some of the sierra nevada's fall colors.
http://img247.imageshack.us/img247/7843/fallstream2pi6.jpg

[COKE CAN]

If anyone is ready to sell one of these let me know :)

[aaronmd]

I'm going to hold on to mine until the day i go full frame! LOVE my 28-75

[Soto]

Some of my last pictures with my Tamron...

http://www.angelsotophotography.com/images/misc/birthday.jpg

[madhatter04]

Great photo! That older woman toward the upper-left corner has such a priceless expression on her face.

[jblksmith1]

I really love this lens so much. I was having some problems with the autofocus but seem to have overcome them with the manual setting. I love my nephew and I am glad he loves my camera.

http://www.pbase.com/jblksmith1/image/69409403

http://www.pbase.com/jblksmith1/image/69409406

[WhoisDAN]

So far, I haven't encountered any problems. I am very happy with my Tamron.

http://img341.imageshack.us/img341/1691/img7192newhs6.jpg

[Soto]

Nice sky in front of my house...

http://www.angelsotophotography.com/images/misc/sombraysol.jpg

[Margie]

Gorgeous !!! Did you use any filters?
Margie

[runninmann]

Some of my last pictures with my Tamron...

http://www.angelsotophotography.com/images/misc/birthday.jpgPinata?

[05Xrunner]

I'm going to hold on to mine until the day i go full frame! LOVE my 28-75
Why would you need to sell it then..Its full frame/film compatable

[Soto]

Gorgeous !!! Did you use any filters?
Margie

Yes, I used a polarize filter... very nice for the sky

[Soto]

Pinata?

Yes, the piñata time!!!

[Margie]

Loving my Tamron 28-75mm...photo taken yesterday on a day on the town!

I am finding ths lens not quite wide enough for general walk-around lens...but will have to change to my 10-20 sigma when that is the case.

Margie

[gcobb]

I like the lens. It was a good investment. This is a glorified snapshot where I was testing the lens.

http://photogesture.com/images/gnc4433a600a.jpg

[bangarang]

UPS just dropped mine off. Used lens for a great price. Haven't got a chance to do any real pics yet but all my test shots looked good. AF noise is about the same as kit lens (to me) and decently quick.

Photo shoot coming up next week so we'll see how that goes. :)

Thanks to all who posted pics!

[JaGWiRE]

I like the lens. It was a good investment. This is a glorified snapshot where I was testing the lens.

http://photogesture.com/images/gnc4433a600a.jpg
Beautiful :). Your girlfriend?

[Soto]

Another sky picture with my Tamron and a Circular Polarized Filter

http://www.angelsotophotography.com/images/misc/sky.jpg

[steveathome]

My latest contribution

[runninmann]

Steve, very, very nice.

[bignoodleboi]

woohoo bought my 28-75 today... can't wait till I use it later on :-D

[nattydreadz]

wow... got my tamron 28-75 the very next day from sigma4less.