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FORUMS Sample Photo Archives Lens Sample Photo Archive 
Thread started 06 Oct 2010 (Wednesday) 09:36
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Tamron AF 70-300mm f/4.0-5.6 SP Di VC USD XLD

 
MTAtech
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Oct 16, 2010 19:23 |  #31

MMURAD wrote in post #11109973 (external link)
you can go live view, then zoom in on the screen to get very accurate focus exactly where you want it.

bmwcolin wrote in post #11109976 (external link)
Well I'm sure he was using spot focus, but when you use manual focus using live view, you can zoom in 10x and tweak the focus better.

Thanks for the info! I'm still getting used to this camera. I have it less than two weeks.


60D, Tamron 70-300 VC, Sigma 20-40 2.8 DG and remembers when ISO was ASA

  
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gcogger
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Oct 16, 2010 19:59 |  #32

Yes, as stated above I was talking about the zoom-in option for live view - it's amazing how precisely you can focus that way.

I'm not trying to knock your testing, by the way, as these are exactly the comparisons that I'm interested in. I've tried tests like this myself, and it's really tough to get conclusive results. The lighting and the focus have to be identical between shots (unless you're testing AF, of course) and it needs very good tripod technique. It usually takes me several attempts :)


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leonclement
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Oct 16, 2010 21:01 as a reply to  @ gcogger's post |  #33

cant wait for this lens to be available in New Zealand for canon mount! Just sold my 55-250mm IS to get this soon. :)


550d with grip, Tamron 17-50 2.8 VC, Tamron 70-300 VC USD :)

  
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tkbslc
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Oct 16, 2010 22:40 |  #34

MMURAD wrote in post #11109973 (external link)
you can go live view, then zoom in on the screen to get very accurate focus exactly where you want it.

If you have to do that to get a sharp photo then who wants the lens anyway? This was a good test. If the difference is down to autofocus, then that is going to show in real life as well.


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MMURAD
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Oct 16, 2010 23:35 |  #35

tkbslc wrote in post #11110859 (external link)
If you have to do that to get a sharp photo then who wants the lens anyway? This was a good test. If the difference is down to autofocus, then that is going to show in real life as well.

This was a good test and for normal usage the live view and zoom technique is not practical. (except for maybe macro work)
But the live view manual focus is to account for any micro adjustment the lens might need and to make sure you are on the spot you want for testing purposes.
I use it to micro adjust all my lenses on the 7D.


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gcogger
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Oct 17, 2010 05:17 |  #36

tkbslc wrote in post #11110859 (external link)
If you have to do that to get a sharp photo then who wants the lens anyway? This was a good test. If the difference is down to autofocus, then that is going to show in real life as well.

I think it's important to do separate tests for image quality and focusing ability. I'm not sure this is a good test for AF, as the centre of the frame is closely surrounded by things at different distances from the camera. You really need something unambiguous to focus on for an AF test.


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bmwcolin
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Oct 18, 2010 10:27 |  #37

My keeper rate has gone way up with the lens and the 60d, over my 55-250is and T1i...

More sample shots taken yesterday.

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Dubz1
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Oct 18, 2010 13:38 as a reply to  @ bmwcolin's post |  #38

wow...They look great!
How do you think it will do shooting sports? Daytime..Good light?
Keep em coming.




  
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bmwcolin
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Oct 18, 2010 13:41 |  #39

Dubz1 wrote in post #11120050 (external link)
wow...They look great!
How do you think it will do shooting sports? Daytime..Good light?
Keep em coming.

I think it should be fine, depending on what body its on. 7d im sure would be great. rebel, a little slower. The AF is pretty fast, and the pix are pretty sharp. I'm happy with it.


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TheNewGuy01
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Oct 18, 2010 21:52 |  #40

Never really posted before please bare with me.

My wife just bought me this lens for our anniversary :)

The first thing I noticed is the VC is great! The lens is pretty sharp too; however I have not been able to fully test it out. Here are a few shots, jpg, strait out of my camera. (Wish I shot in raw more). All are hand held and the light was disappearing. They are not as sharp as they could be but 1/30-1/80s hand held at 300mm

f5.6, 1/30, 300mm, ISO1600

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f5.6, 1/50, 300mm, ISO1600
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f5.6, 1/50, 300mm, ISO800
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f7.1, 1/80s, 300mm, ISO800
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Oct 19, 2010 15:51 as a reply to  @ TheNewGuy01's post |  #41

@bmwcolin, those "cat" pix are great......beautiful animal and great photos well done....show more!


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bmwcolin
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Oct 19, 2010 17:30 |  #42

Here is a very informal example and comparison of my old t1i and 55-250is I gave to my wife and my new 60d and 70-300 vc.

Her shot

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Mine with the 70-300vc
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EOS 6d, 24-105, 85 1.8, Tamron 150-600. kenko 180*fisheye, tokina 11-16, Canon 100L macro, 430ex.

  
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shane_c
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Oct 20, 2010 10:13 |  #43

Looks like it's a great lens for the price! I'm seriously considering picking one up in the next few months. Have there been any tests comparing the Tamron 70-300 VC and the Canon 55-250?


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leoni
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Oct 21, 2010 08:17 |  #44

some persons said that tamron is better then canon 55-250is

what about sigma 70-300 OS

how is AF with tamron 70-300?

thanks


Canon 6d with Canon 16-35F4 IS, Canon 50 1.8STM, Canon 85 1.8 , 70-200mm F4 L,

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MTAtech
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Oct 21, 2010 08:27 |  #45

leoni wrote in post #11137623 (external link)
some persons said that tamron is better then canon 55-250is

what about sigma 70-300 OS

how is AF with tamron 70-300?

thanks

I don't think people tested it against every permutation of competing lenses.
The AF is fast. It's not quite as fast as the 70-200L but someone said it was faster than the 70-300 (non-L.) I have no complaints with the AF or the VC.


60D, Tamron 70-300 VC, Sigma 20-40 2.8 DG and remembers when ISO was ASA

  
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Tamron AF 70-300mm f/4.0-5.6 SP Di VC USD XLD
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