Approve the Cookies
This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies and our Privacy Policy.
OK
Index  •   • New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear  •   • Reviews
Guest
New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear  •   • Reviews
Register to forums    Log in

 
FORUMS Sample Photo Archives Lens Sample Photo Archive 
Thread started 13 Dec 2013 (Friday) 23:44
Search threadPrev/next
sponsored links
(this ad will go away when you log in as a registered member)

Tamron SP 150-600mm Di VC USD

 
gabebalazs
Bird Whisperer
Avatar
7,640 posts
Gallery: 52 photos
Likes: 1060
Joined Nov 2008
Location: Toledo, OH
     
Jan 25, 2014 22:20 |  #796

Snydremark wrote in post #16637049 (external link)
If you wouldn't mind trying this:
1. Center AF point, AI Servo, back button AF
2. Half press and hold the shutter button to engage IS
3. Using the back butto, AF on something 20yds away or so
4. Once focused, bump slightly OOF with the focus ring
5. Release and repress the back button to re-engage AF, without releasing the half press on the shutter

Does your refocus? Would be interesting to know on the 6 and 70

I presume I need to change the function of the shutter button, right? What are your settings Eric?


SONY A7RIII | SONY A7III | SONY RX10 IV | SONY RX100 | 24-70 2.8 GM | 70-200 2.8 GM | 16-35 F/4 | PZ 18-105 F/4 | FE 85 1.8 | FE 28-70 | SIGMA 35 1.4 ART | SIGMA 150-600 C | ROKINON 14 2.8
Gabe Balazs Photo (external link)
Nature Shots Portfolio (external link)

  
  LOG IN TO REPLY
sponsored links
(this ad will go away when you log in as a registered member)
gabebalazs
Bird Whisperer
Avatar
7,640 posts
Gallery: 52 photos
Likes: 1060
Joined Nov 2008
Location: Toledo, OH
     
Jan 25, 2014 22:22 |  #797

Coral wrote in post #16637024 (external link)
Sometimes it's not wise to be an early adopter. Better to let others work the bugs and then buy IMO.

While it seems like a wise advice, without early adopters, logically there would be no "later" adopters :)
How would you buy a lens if there were no early adopters? :)


SONY A7RIII | SONY A7III | SONY RX10 IV | SONY RX100 | 24-70 2.8 GM | 70-200 2.8 GM | 16-35 F/4 | PZ 18-105 F/4 | FE 85 1.8 | FE 28-70 | SIGMA 35 1.4 ART | SIGMA 150-600 C | ROKINON 14 2.8
Gabe Balazs Photo (external link)
Nature Shots Portfolio (external link)

  
  LOG IN TO REPLY
stang67
Senior Member
Avatar
385 posts
Likes: 2
Joined Mar 2013
Location: Melbourne, Australia
     
Jan 25, 2014 22:28 as a reply to  @ post 16610726 |  #798

So Gabe, do you think you will hang onto the 150-600, especially if you can get the bugs sorted out? Did you mainly purchase it as a lightweight alternative to the 120-300 + 2x TC or...?


Canon 6D - Canon 1D Mk III - 70-200mm f/2.8L IS II | Σ 105mm f/2.8 | Canon 400mm f/5.6L | Σ 35mm f/1.4 | 17-40mm f/4L
flickr (external link)

  
  LOG IN TO REPLY
Snydremark
my very own Lightrules moment
18,491 posts
Gallery: 47 photos
Likes: 1527
Joined Mar 2009
Location: Issaquah, WA USA
     
Jan 25, 2014 22:29 |  #799

gabebalazs wrote in post #16637090 (external link)
I presume I need to change the function of the shutter button, right? What are your settings Eric?

Yes, shutter button is set to Metering Start and the AF-ON button to Metering and AF Start


- Eric S.: My Birds/Wildlife (external link) (7D MkII/5D IV, Canon 10-22 f/3.5-4.5, Canon 24-105L f/4 IS, Canon 70-200L f/2.8 IS MkII, Canon 100-400L f/4.5-5.6 IS I/II)
"The easiest way to improve your photos is to adjust the loose nut between the shutter release and the ground."

  
  LOG IN TO REPLY
Allez
Member
59 posts
Joined Apr 2008
     
Jan 25, 2014 22:39 |  #800

Coral wrote in post #16637024 (external link)
Sometimes it's not wise to be an early adopter. Better to let others work the bugs and then buy IMO.

As with many things, sometimes it's not wise, but sometimes it makes life a lot more interesting ;)




  
  LOG IN TO REPLY
1Tanker
Goldmember
Avatar
4,470 posts
Likes: 5
Joined Jan 2011
Location: Swaying to the Symphony of Destruction
     
Jan 25, 2014 23:13 |  #801

Coral wrote in post #16637024 (external link)
Sometimes it's not wise to be an early adopter. Better to let others work the bugs and then buy IMO.

I generally follow this mantra...throughout life. Rather than diving in first, i'd rather someone else dive in, and hit their head.. if there are rocks. :lol:


Kel
Gear

  
  LOG IN TO REPLY
Jeff ­ Donald
Member
Avatar
39 posts
Likes: 1
Joined Dec 2009
Location: Clearwater, FL
     
Jan 25, 2014 23:31 as a reply to  @ post 16610726 |  #802

AF may be inconsistent on a crop sensor body. The center point is limited to f/5.6 in AF. The Tamron is f/6.3 from about 400mm on, so the AF sensors are restricted by the narrower opening. The body attempts to focus because the lens reports the aperture as f/5.6. I doubt FF cameras with f/8 AF are having the same issue when using the center AF point.




  
  LOG IN TO REPLY
clarnibass
Senior Member
793 posts
Likes: 9
Joined May 2011
     
Jan 25, 2014 23:53 |  #803

Snydremark wrote in post #16637062 (external link)
And I just confirmed this behavior, and that it does NOT happen with the 100-400. It will re-engage without releasing either of the buttons and simply corrects and goes back to AF

Did you check this just at 600mm on the Tamron?
The Tamron is f/6.3 there while the 100-400mm f/5.6 at 400mm.
Also, it's possible that 600mm put the AF point on a less contrasty part of the subject.
One or both of these things could be the reason for the problem (or not).

Can you try both at 400mm, making sure the Tamron is at 400mm f/5.6 (and not slightly above where it would change to f/6.3.) and see what you get?

BTW the problem described with LV, where it would go back and completely refocus in LV, eventhough it was already focused or close to it, is definitely something I was getting with some Canon lenses. If I remember, with any Canon lens, focusing in LV reuiqred an especially good, contrasty and well lit target for it to not do that, and even then it wouldn't quickly lock like viewfinder AF would.


www.nitailevi.com (external link)

  
  LOG IN TO REPLY
Snydremark
my very own Lightrules moment
18,491 posts
Gallery: 47 photos
Likes: 1527
Joined Mar 2009
Location: Issaquah, WA USA
     
Jan 26, 2014 00:12 as a reply to  @ post 16610726 |  #804

This has nothing whatsoever to do with max aperture. It has to do with the AF system not re-engaging properly once it's been interrupted. The behavior I described happens at all focal lengths with this lens; none of the other lenses I have do this.


- Eric S.: My Birds/Wildlife (external link) (7D MkII/5D IV, Canon 10-22 f/3.5-4.5, Canon 24-105L f/4 IS, Canon 70-200L f/2.8 IS MkII, Canon 100-400L f/4.5-5.6 IS I/II)
"The easiest way to improve your photos is to adjust the loose nut between the shutter release and the ground."

  
  LOG IN TO REPLY
Levina ­ de ­ Ruijter
I'm a bloody goody two-shoes!
Avatar
18,414 posts
Gallery: 318 photos
Best ofs: 10
Likes: 7576
Joined Sep 2008
Location: Amsterdam, The Netherlands, EU
     
Jan 26, 2014 00:27 |  #805

Jeff Donald wrote in post #16637231 (external link)
AF may be inconsistent on a crop sensor body. The center point is limited to f/5.6 in AF. The Tamron is f/6.3 from about 400mm on, so the AF sensors are restricted by the narrower opening. The body attempts to focus because the lens reports the aperture as f/5.6. I doubt FF cameras with f/8 AF are having the same issue when using the center AF point.

Could be. Would also be interesting to learn if this AF problem occurs on a 1D body as they too retain AF at f/8.

EDIT: missed Jason's bit about him using the 1DX. Okay...!


Levina (not Lavina, Lavinia, Levinia, Ludwina and what not, mkay?)
My flickr (external link)

  
  LOG IN TO REPLY
jbrackjr
Senior Member
481 posts
Likes: 35
Joined Dec 2011
Location: Georgia, USA
     
Jan 26, 2014 00:58 |  #806

Jeff Donald wrote in post #16637231 (external link)
AF may be inconsistent on a crop sensor body. The center point is limited to f/5.6 in AF. The Tamron is f/6.3 from about 400mm on, so the AF sensors are restricted by the narrower opening. The body attempts to focus because the lens reports the aperture as f/5.6. I doubt FF cameras with f/8 AF are having the same issue when using the center AF point.


See post 2811 in the other thread by jase1125 who used a 1DX

But for convenience I will paste it here:

So I just finished taking the lens on a test drive. For BIF, it is a complete fail. In fact, I'm returning the lens and sticking to my 100-400L. The reason is if the lens is prefocused toward the minimum to middle of the focusing range, sometimes it will not even try to acquire an Osprey or Duck in flight. The AF light blinks in the viewfinder on the 1Dx but the lens elements doesn't even attempt to move. I have to use my thumb to turn the focus ring close to focus on the subject and then AF will move and attempt to acquire the subject. So for every bird in flight, I had to manually pre-focus before AF would engage and track the subject. IQ wise, it appears comparable to the 100-400L @ F8. Bummer the AF doesn't work well though.
_______________
Jason


Jim
Gear List

  
  LOG IN TO REPLY
dufflover
Senior Member
Avatar
315 posts
Joined Nov 2012
Location: Australia
     
Jan 26, 2014 01:30 |  #807

Some nice images in this thread (granted web images are very forgiving but enjoyable to see nonetheless for us browsers! :D)

archer1960 wrote in post #16636779 (external link)
I've seen that when my lenses are getting fogged up at night.

That's how my Sigma 120-300 looks wide open, gone by 1/3. I just attribute that to spherical aberrations.


"Duffman, could you bring in two bottles of smooth, untainted DUFF?""Oh Yeah!"
Main gear: Canon 7D, Canon 60D, Sig 120-300/2.8 OS, Can 100-400, Can 70-200/2.8L II, Can 1.4x-II, Can 2x-III, Tam 17-50/2.8, Tam 90/2.8 macro

My Flickr (feel free to critique!) (external link)

  
  LOG IN TO REPLY
fairygen
Member
59 posts
Gallery: 7 photos
Likes: 21
Joined Sep 2008
Location: London
     
Jan 26, 2014 03:17 |  #808

Snydremark wrote in post #16636895 (external link)
@fairygen: That is a lens (or possibly body) that isn't focusing correctly; do you get that same, 'smear' effect when shooting your other lenses? Your results should never look like that with a properly functioning setup

I can't say that I've ever noticed it with other lenses, with this one there are shots where something looks not quite right at full size and you see the dreamy when you start to pixel peep, but other shots, i should mention, are as sharp as I was expecting to achieve - http://farm8.staticfli​ckr.com …36531396_b9c769​2a23_o.jpg (external link)

I feel somewhat limited in that I'm shooting with a 650d so have no access to the MFA settings, but I'm just trying to gauge whether this is a bad copy of the lens or whether it's never going to work with my setup. Would love to see any other shots people have taken on the rebel bodies for a comparison.




  
  LOG IN TO REPLY
the ­ black ­ fox
Senior Member
956 posts
Gallery: 718 photos
Likes: 1788
Joined Apr 2009
Location: flint ,north wales .u.k
     
Jan 26, 2014 03:57 as a reply to  @ post 16610726 |  #809

after having read through this thread and lots of others on different forums regarding this lens ,i do think that a lot of the alleged problems are simply and purely user error ,and its going to take a while to sort out the the wheres and whys .

(1) quiet a few mentions of multi point /mixed focus points at extreme range

the answer ,is you should really be in single point ,servo mode a/f .multi point a/f will be looking all over the sky for a target .also if your camera has tracking speed enabled try moving it to fast rather than the normal slow .

(2) lots of references to camera/lenses on tripods with the i.s switched on .

the answer ,if your lens is tripod mounted switch off i.s as it will be working against you constantly ,try to pre-focus your lens somewhere in the region that you think your target will be and if you have back button a/f keep it locked in this area to save the lens hunting its full length .

(3) its not a L lens and comparing it to one is like comparing a mini to a ferrari ,its a mid range long reach zoom from a third party manufacturer .a lot of these reports have put me off contemplating getting one of these lenses ,which in all honesty after looking at comments in depth isn't really fair on the lens ,trouble is no experienced long lens wildlife shooter who uses a ,for the sake of argument a 1D mkiv and a canon 600mm L lens is going to test this lens out and give a fair appraisal as they will be biased ,and putting it in the hands of inexperienced users will lead to what we are reading here .


changed systems to MFT olympus omd1-mkii with ver 3.01 firmware , panasonic /leica 100-400 , panasonic G80 ,panasonic 12-60 mm. olympus 30mm macro (on order) various convertors to m42 and nikon mount lenses

  
  LOG IN TO REPLY
the ­ black ­ fox
Senior Member
956 posts
Gallery: 718 photos
Likes: 1788
Joined Apr 2009
Location: flint ,north wales .u.k
     
Jan 26, 2014 04:01 |  #810

fairygen wrote in post #16637474 (external link)
I can't say that I've ever noticed it with other lenses, with this one there are shots where something looks not quite right at full size and you see the dreamy when you start to pixel peep, but other shots, i should mention, are as sharp as I was expecting to achieve - http://farm8.staticfli​ckr.com …36531396_b9c769​2a23_o.jpg (external link)

I feel somewhat limited in that I'm shooting with a 650d so have no access to the MFA settings, but I'm just trying to gauge whether this is a bad copy of the lens or whether it's never going to work with my setup. Would love to see any other shots people have taken on the rebel bodies for a comparison.

thats simply a exposure error on your part .


changed systems to MFT olympus omd1-mkii with ver 3.01 firmware , panasonic /leica 100-400 , panasonic G80 ,panasonic 12-60 mm. olympus 30mm macro (on order) various convertors to m42 and nikon mount lenses

  
  LOG IN TO REPLY
sponsored links
(this ad will go away when you log in as a registered member)

2,389,025 views & 5,991 likes for this thread
Tamron SP 150-600mm Di VC USD
FORUMS Sample Photo Archives Lens Sample Photo Archive 
AAA
x 1600
y 1600

Jump to forum...   •  Rules   •  Index   •  New posts   •  RTAT   •  'Best of'   •  Gallery   •  Gear   •  Reviews   •  Member list   •  Polls   •  Image rules   •  Search   •  Password reset

Not a member yet?
Register to forums
Registered members may log in to forums and access all the features: full search, image upload, follow forums, own gear list and ratings, likes, more forums, private messaging, thread follow, notifications, own gallery, all settings, view hosted photos, own reviews, see more and do more... and all is free. Don't be a stranger - register now and start posting!


COOKIES DISCLAIMER: This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies and to our privacy policy.
Privacy policy and cookie usage info.


POWERED BY AMASS forum software 2.1forum software
version 2.1 /
code and design
by Pekka Saarinen ©
for photography-on-the.net

Latest registered member is quadrentau
979 guests, 246 members online
Simultaneous users record so far is 15144, that happened on Nov 22, 2018

Photography-on-the.net Digital Photography Forums is the website for photographers and all who love great photos, camera and post processing techniques, gear talk, discussion and sharing. Professionals, hobbyists, newbies and those who don't even own a camera -- all are welcome regardless of skill, favourite brand, gear, gender or age. Registering and usage is free.