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Thread started 24 Nov 2012 (Saturday) 15:12
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Tamron SP 70-200mm F/2.8 Di VC USD

 
AZFiLM
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May 16, 2014 18:00 |  #691

How would one know if they've received a "good copy" of this lens? I never really paid attention to this sort of thing until someone recently brought it up. I just brushed it off and said I definately got a good copy, but I honestly wouldn't really know lol.

Cropped to 8x10 for print, 200mm f2.8

IMAGE: http://www.azfilm.info/Portraits/Mothers-Day-Session-2014/i-ZfsC4gD/0/M/Andrew%20Zaragoza%20-%20Mothers%20Day%208x10-4-M.jpg
IMAGE LINK: http://www.azfilm.info …-Session-2014/i-ZfsC4gD/A  (external link)



  
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jamstar35
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May 16, 2014 19:55 |  #692

AZFiLM wrote in post #16909562 (external link)
How would one know if they've received a "good copy" of this lens? I never really paid attention to this sort of thing until someone recently brought it up. I just brushed it off and said I definately got a good copy, but I honestly wouldn't really know lol.

I think it depends on how sharp your copy is at 2.8.

IMAGE: https://farm3.staticflickr.com/2925/14199901764_285b558815_b.jpg
IMAGE LINK: https://flic.kr/p/nCNd​5u  (external link) Aly-3 (external link) by Jamel Thompson Photography (external link), on Flickr

Sony A7iii, Sony FE 85mm f/1.8, Canon 6D, Canon T3i/600D....Canon EF-S 17-55 f/2.8 IS, Canon EF-S 55-250 f/4-5.6 IS, Canon EF 24-105 F/4L IS, Canon EF 35mm f/2, Canon EF 50mm f/1.8, Canon EF 85mm f/1.8, Tamron 70-200 f/2.8 VC USD
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dalibort82
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May 17, 2014 16:21 |  #693

Summer Memories

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majix
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May 17, 2014 16:27 |  #694

not sure to keep this lens or sell it for 135 + 85 1.8
I think I will miss the VC


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Charlie
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May 17, 2014 16:30 |  #695

majix wrote in post #16911392 (external link)
not sure to keep this lens or sell it for 135 + 85 1.8
I think I will miss the VC

I have a 135, been looking for this lens..... maybe. Let me know if you do decide on a 135 route, maybe we can work out a trade.


Sony A7riii/A9 - FE 12-24/4 - FE 24-240 - SY 24/2.8 - FE 28/2 - FE 35/2.8 - FE 50/1.8 - FE 85/1.8 - EF 135/1.8 Art - F 600/5.6 - CZ 100-300 - Astro Rok 14/2.8 - Tamron 17-28/2.8 - 28-75/2.8 RXD, 70-200/2.8 VC

  
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Kiwi ­ Kid
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May 18, 2014 03:56 |  #696

AZFiLM wrote in post #16909562 (external link)
How would one know if they've received a "good copy" of this lens? I never really paid attention to this sort of thing until someone recently brought it up. I just brushed it off and said I definately got a good copy, but I honestly wouldn't really know lol.

I'm taking mine back tomorro,its oof at 200 2.8,needs about -8 on 6D

These are the oof shots,one tight crop one about 20%

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6D---17-35 Tammy---40mm f2.8---50mm f1.8---70-200 f2.8 Tamron VC---400mm f5.6---EX580---Yongnuo Triggers
Flickr (external link)

  
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yamatama
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May 18, 2014 10:52 |  #697

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IMAGE LINK: https://flic.kr/p/nnv7​NM  (external link) Sophia-4627-2 (external link) by delacruz266 (external link), on Flickr

Nikon D750, 35 1.4G, 85 1.8G, 24-70 2.8G, 70-200 2.8G
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mplezia
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May 21, 2014 15:22 as a reply to  @ post 16891687 |  #698

AI Servo focus --

I've been playing with my Tamron 70-200 and 60D combo and trying my hand at tracking/shooting with AI servo for sports. My results have been mixed at best. And, I'm concerned that the AF motor on the Tamron is a bit slow when tracking moving subjects.

Some examples from a little practice a week or two ago. All shot with center point AI focus at f/3.2. Distance to subject was probably 25-45 feet. All of these were shot RAW and minimally processed in a batch in LR5. The first shot is the full frame as it was taken and the second is a crop of the center of the image . . . not quite 100% crop, but close enough to see a little more detail. I have many examples, but this group is pretty representative. All are from a burst of 5-6 shots as my son runs down the field.

The first shot of the burst is fine, no complaints there. But as he moves and the burst continues, the focus tracking definitely can't keep up.

Shot 1 of a burst sequence (162mm - f/3.2 - 1/3200):

IMAGE: https://farm3.staticflickr.com/2914/14020015549_a3842490bb_c.jpg
IMAGE LINK: https://flic.kr/p/nmUf​b2  (external link) IMG_3689 (external link)
by mplezia (external link), on Flickr

center crop of Shot 1:
IMAGE: https://farm6.staticflickr.com/5160/14020043560_327bcda301_c.jpg
IMAGE LINK: https://flic.kr/p/nmUo​uY  (external link) IMG_3689_crop (external link)
by mplezia (external link), on Flickr

Shot 3 of sequence (162mm - f/3.2 - 1/1600):
IMAGE: https://farm6.staticflickr.com/5547/14183545696_88c2ef0f70_c.jpg
IMAGE LINK: https://flic.kr/p/nBmn​Zj  (external link) IMG_3691 (external link)
by mplezia (external link), on Flickr

center crop of shot 3:
IMAGE: https://farm6.staticflickr.com/5312/14183545736_2974397e6d_c.jpg
IMAGE LINK: https://flic.kr/p/nBmo​11  (external link) IMG_3691_crop (external link)
by mplezia (external link), on Flickr

Shot 4 of sequence (162mm - f/3.2 - 1/1600):
IMAGE: https://farm3.staticflickr.com/2915/14020085687_0744a92daa_c.jpg
IMAGE LINK: https://flic.kr/p/nmUB​2i  (external link) IMG_3692 (external link)
by mplezia (external link), on Flickr

center crop of shot 4:
IMAGE: https://farm3.staticflickr.com/2939/14183545566_f1e108979d_c.jpg
IMAGE LINK: https://flic.kr/p/nBmn​X5  (external link) IMG_3692_crop (external link)
by mplezia (external link), on Flickr

Would love some thoughts from anyone else who has shot this lens using AI servo and whether I've done something wrong, or if the AF motor is just not up to this particular task. I love the lens. Optically, it's fantastic, the VC is awesome, and single shot focus is dead on even at 2.8.

Canon 60D | Canon 500D | Canon 430EX II | Canon EF 24-105mm f/4 | Sigma 30mm f/1.4 DC HSM 'A' | Canon EF 50mm f/1.8 II | Canon EF-S 18-55mm f/3.5-5.6

  
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mguffin
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May 21, 2014 15:56 |  #699

mplezia wrote in post #16920557 (external link)
Would love some thoughts from anyone else who has shot this lens using AI servo and whether I've done something wrong, or if the AF motor is just not up to this particular task. I love the lens. Optically, it's fantastic, the VC is awesome, and single shot focus is dead on even at 2.8.

These were shot AI Focus...
https://photography-on-the.net …?p=16892913&pos​tcount=678


Mike
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Sigma 35 f/1.4 DG ~ Nikkor 50 f/1.8G ~ Nikkor 85 f/1.8G ~ Nikkor 12-24 f/4 DX ~ Nikkor 17-55 f/2.8 DX ~ Nikkor 70-200 f/2.8 VR ~ Sigma 18-35 f/1.8 DC ~ Sigma 50-100 f/1.8 DC

  
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mplezia
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May 21, 2014 16:14 |  #700

Yes. Thanks. I remember seeing those previously. I noticed that you were shooting f/4 and with the 6D. DoF is probably not very different compared to my 60D at f/3.2. People complain about the 6D AF system, but clearly the center point is quite good. How would you characterize your keeper rate on shots like that (half, 80%?)? Did you shoot longer bursts of 4,5,6+ shots?

I think the 60D is generally capable. So, I think it's either poor technique for me, or the lens. I'm trying to determine if it's a general problem with the lens, or possibly some variation from copy to copy. I'll be taking another shot later this week and will be sure to narrow my aperture a little to see if more DoF helps the issue.

Thanks for the input.


Canon 60D | Canon 500D | Canon 430EX II | Canon EF 24-105mm f/4 | Sigma 30mm f/1.4 DC HSM 'A' | Canon EF 50mm f/1.8 II | Canon EF-S 18-55mm f/3.5-5.6

  
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mplezia
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May 21, 2014 16:17 as a reply to  @ mplezia's post |  #701

mguffin, I see you also have a 24-105L. I have one as well and will be testing its performance under similar conditions to see how it compares (possibly eliminating the camera as a potential culprit). Do you have a sense of how the 24-105 fares for you compared to the Tamron when using AI servo?


Canon 60D | Canon 500D | Canon 430EX II | Canon EF 24-105mm f/4 | Sigma 30mm f/1.4 DC HSM 'A' | Canon EF 50mm f/1.8 II | Canon EF-S 18-55mm f/3.5-5.6

  
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Charlie
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May 21, 2014 16:42 |  #702

mplezia wrote in post #16920678 (external link)
Yes. Thanks. I remember seeing those previously. I noticed that you were shooting f/4 and with the 6D. DoF is probably not very different compared to my 60D at f/3.2. People complain about the 6D AF system, but clearly the center point is quite good. How would you characterize your keeper rate on shots like that (half, 80%?)? Did you shoot longer bursts of 4,5,6+ shots?

I think the 60D is generally capable. So, I think it's either poor technique for me, or the lens. I'm trying to determine if it's a general problem with the lens, or possibly some variation from copy to copy. I'll be taking another shot later this week and will be sure to narrow my aperture a little to see if more DoF helps the issue.

Thanks for the input.

do you have any experience shooting F2.8 + telephoto? considerably more different than standard F4 or even F2.8 zooms. DOF can get pretty thin. As crazy as it sounds, even the 135 can miss, and it's blazing fast.


Sony A7riii/A9 - FE 12-24/4 - FE 24-240 - SY 24/2.8 - FE 28/2 - FE 35/2.8 - FE 50/1.8 - FE 85/1.8 - EF 135/1.8 Art - F 600/5.6 - CZ 100-300 - Astro Rok 14/2.8 - Tamron 17-28/2.8 - 28-75/2.8 RXD, 70-200/2.8 VC

  
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mplezia
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May 21, 2014 17:11 |  #703

Charlie wrote in post #16920733 (external link)
do you have any experience shooting F2.8 + telephoto? considerably more different than standard F4 or even F2.8 zooms. DOF can get pretty thin. As crazy as it sounds, even the 135 can miss, and it's blazing fast.

Limited experience. I've used the Tamron on a few occasions before purchase. On immobile objects and one shot focus, it has performed great. I acknowledge that limited DoF could be part of my problem and I need to test that out with the lens stopped down a bit farther. I'm not ready to fully blame the lens at this point, which is why I'm curious if others like mguffin have had better success in similar situations.


Canon 60D | Canon 500D | Canon 430EX II | Canon EF 24-105mm f/4 | Sigma 30mm f/1.4 DC HSM 'A' | Canon EF 50mm f/1.8 II | Canon EF-S 18-55mm f/3.5-5.6

  
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Josh ­ Young
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May 21, 2014 18:19 |  #704

With the 60D it could simply be the camera's ability to AF moving subjects.




  
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mguffin
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May 21, 2014 19:46 |  #705

mplezia wrote in post #16920678 (external link)
How would you characterize your keeper rate on shots like that (half, 80%?)? Did you shoot longer bursts of 4,5,6+ shots?

There was probably 1-2 more from that series that were a little off.

mplezia wrote in post #16920687 (external link)
mguffin, I see you also have a 24-105L. I have one as well and will be testing its performance under similar conditions to see how it compares (possibly eliminating the camera as a potential culprit). Do you have a sense of how the 24-105 fares for you compared to the Tamron when using AI servo?

I think the 24-105 and the Tammy perform about the same as far as AF goes. Not the fastest available, but fast enough for my needs... not for a pro sports shooter for sure...


Mike
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Sigma 35 f/1.4 DG ~ Nikkor 50 f/1.8G ~ Nikkor 85 f/1.8G ~ Nikkor 12-24 f/4 DX ~ Nikkor 17-55 f/2.8 DX ~ Nikkor 70-200 f/2.8 VR ~ Sigma 18-35 f/1.8 DC ~ Sigma 50-100 f/1.8 DC

  
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Tamron SP 70-200mm F/2.8 Di VC USD
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