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Archive 2014 · Tamrons Response To AI Servo Issue.

  
 
brimull
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p.9 #1 · Tamrons Response To AI Servo Issue.


Although the Tamron 150-600mm does not function properly with other Canon camera bodies, I contend that even if it were the 7D alone, it is still unacceptable. There have been an enormous number of Canon 7D's sold over the past several years. When I meet wildlife photographers in the field, my unscientific observation is that the 7D remains the single most popular model among this type of photographer. It is a very popular camera and is used by countless thousands of photographers worldwide.

Therefore, I find it odd that a company produces and sells a 150-600mm zoom in the Canon mount, a lens undoubtedly with special appeal to wildlife photographers, and it doesn't function in autofocus servo mode with this very popular Canon DSLR! Then, after the major defect is revealed, the company does not acknowledge it.

Something is very wrong not only with this lens, but with the company that manufactures it. I have a 5D MkIII, and the Tamron functions properly on that camera body; but that doesn't change the fact that things are just not right here.

But I'll take it all back if Tamron acknowledges the problem and implements some sort of fix or correction. Perhaps it's a belated work in progress.....

Brian M.



Mar 03, 2014 at 01:21 PM
Imagemaster
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p.9 #2 · Tamrons Response To AI Servo Issue.


brimull wrote:
Although the Tamron 150-600mm does not function properly with other Canon camera bodies, I contend that even if it were the 7D alone, it is still unacceptable. There have been an enormous number of Canon 7D's sold over the past several years. When I meet wildlife photographers in the field, my unscientific observation is that the 7D remains the single most popular model among this type of photographer. It is a very popular camera and is used by countless thousands of photographers worldwide.

Therefore, I find it odd that a company produces and sells a 150-600mm zoom in the Canon
...Show more

+1



Mar 03, 2014 at 01:27 PM
IndyFab
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p.9 #3 · Tamrons Response To AI Servo Issue.


Perhaps Pat Simonetti should head to L&D 14 on the Mississippi River with jjbird, so he/she can show him how it works on the 7D..

If traveling is an issue, present it on video, and put it on U tube.

Only thing one can hope for is that they are now aware of the issue, and correct it, if possible, and we see it in the next wave of lenses that hit the marketplace..





Mar 03, 2014 at 01:59 PM
AnthonyRay
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p.9 #4 · Tamrons Response To AI Servo Issue.


brimull wrote:
... I contend that even if it were the 7D alone, it is still unacceptable...


And this is why I'm not getting one. I've got a 6D, but am I keeping it forever? Will it even work with my 60D? Or, will I never get another body? And will that body work with this lens? Do I need to consider my body purchase and only get a body that will work with this lens?

I feel pretty confident that my L glass and my Sigmas will continue to function with whatever I purchase. Heck, even my little Tamron 70-300. Glass is the investment, but it can't dictate or it's gone.

I have a bunch of Amex cards on my bulletin board from my Canon MIR's, and I was considering using them towards this lens. Now, I'm waiting for the Sigma 50 f1.4! Thanks for making my decision so much easier Tamron!



Mar 03, 2014 at 03:06 PM
rongoe
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p.9 #5 · Tamrons Response To AI Servo Issue.


^ Since when is a 50 f1.4 a substitute for a 150-600?

I'd buy the lens you want for NOW and if your needs change (maybe due to a new body) then sell. Transaction costs with lenses are relatively low.



Mar 03, 2014 at 03:42 PM
Pixel Perfect
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p.9 #6 · Tamrons Response To AI Servo Issue.


brimull wrote:
Although the Tamron 150-600mm does not function properly with other Canon camera bodies, I contend that even if it were the 7D alone, it is still unacceptable. There have been an enormous number of Canon 7D's sold over the past several years. When I meet wildlife photographers in the field, my unscientific observation is that the 7D remains the single most popular model among this type of photographer. It is a very popular camera and is used by countless thousands of photographers worldwide.

Therefore, I find it odd that a company produces and sells a 150-600mm zoom in the Canon
...Show more


Indeed, a 7D and a 150-600 combo should be a budding wildlifers match made in heaven. And the fact it doesn't work properly with 1D IV is also a bitter pill to swallow.



Mar 03, 2014 at 05:42 PM
AnthonyRay
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p.9 #7 · Tamrons Response To AI Servo Issue.


rongoe wrote:
^ Since when is a 50 f1.4 a substitute for a 150-600?

I'd buy the lens you want for NOW and if your needs change (maybe due to a new body) then sell. Transaction costs with lenses are relatively low.


Thing is, I don't "need" either lens. I own all the lenses I "need" professionally. Please don't tell my wife.

However, a lens that might get a reputation for not working with a variety of bodies - that transaction cost will be high indeed. Hopefully they will come clean (because I believe these people) and will offer a firmware fix for free.



Mar 03, 2014 at 06:48 PM
cengell
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p.9 #8 · Tamrons Response To AI Servo Issue.


Hello all, I have a case on order that is 127 mm wide and 254 mm tall with the tripod mount and the rear lens Tamron canon mt cap and lens hood reversed and without the front Tamron lens cap as I think it will be too long.

Now where can I find a those specs or reviews, so if someone would help me with this info I would really appreciate it very much.

I have a lens case a Domke F-505 Lens Case, Large on order today and when I ordered it I went by the Tamrons web site on the this lens and now I read that info is for a nikon mount and no front or rear caps and no hood and not sure about the tripod mount. So this is why I am asking for some help on how long in mm is the lens with the hood reversed and rear cap and really hope it's at 254 mm and with the hood and tripod mount it is at 127 mm or smaller?

I really appreciate anyone's help ASAP.

Christopher



Mar 04, 2014 at 02:42 AM
greenfield
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p.9 #9 · Tamrons Response To AI Servo Issue.


It is 284mm long (reversed hood, both caps in place)


Mar 04, 2014 at 03:27 AM
jj_glos
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p.9 #10 · Tamrons Response To AI Servo Issue.




AnthonyRay wrote:
Thing is, I don't "need" either lens. I own all the lenses I "need" professionally. Please don't tell my wife.

However, a lens that might get a reputation for not working with a variety of bodies - that transaction cost will be high indeed. Hopefully they will come clean (because I believe these people) and will offer a firmware fix for free.


This is the exact reason I'm not buying one at the moment. I'm waiting until Tamron hopefully resolve the problem or at least let us know which bodies have lesser performance. I'm not holding my breath though, so I'm currently looking out for a second hand 100-400 instead.



Mar 04, 2014 at 04:03 AM
DreamInColor
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p.9 #11 · Tamrons Response To AI Servo Issue.


cengell wrote:
Hello all, I have a case on order that is 127 mm wide and 254 mm tall with the tripod mount and the rear lens Tamron canon mt cap and lens hood reversed and without the front Tamron lens cap as I think it will be too long.

Now where can I find a those specs or reviews, so if someone would help me with this info I would really appreciate it very much.

I really appreciate anyone's help ASAP.

Christopher


From the B&H website:
Filter Thread: Front: 95 mm
Dimensions (DxL) Approx. 4.16 x 10.15" (105.6 x 257.8 mm)
Weight: 4.30 lb (1.95 kg)

I purchased this Lowepro case and am very satisfied. It's slightly oversized, but fits snugly with the lens plate I added.



Mar 04, 2014 at 05:33 AM
onegreatcity
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p.9 #12 · Tamrons Response To AI Servo Issue.


As a 1DIV owner, I had hoped that some real world feedback would have been enough for Tamron to take action or, at least, acknowledge the issue exists. As this is apparently not the case, I've recently purchased a Canon 100-400 again. This will be my birding set up for the foreseeable future.


Mar 04, 2014 at 07:22 AM
DreamInColor
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p.9 #13 · Tamrons Response To AI Servo Issue.


I have spent significant time shooting with both the 7D and the 6D using the Tamron 150-600. The vast majority of my subjects have been songbirds - not BIF - just quick little birds moving all over the place. I have far more keepers from the 6D, which I believe is due to a combination of the far superior low light capabilities (when many of my shots have been taken), and the excellent/accurate center AF point. The 7D has performed fine when there's been plenty of light, but not as consistently (for me) as the 6D. I will say I've experienced similar mixed results over the years with the 7D using the Canon 100-400, although it's definitely outperforms the Tamron (on the 7D).

I'm very satisfied with the Tamron so far -- sorry to hear others are not so.



Mar 04, 2014 at 08:53 AM
oldpaws56
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p.9 #14 · Tamrons Response To AI Servo Issue.


I haven't seen one sharp image beyond 400mm yet. I think I will keep my Canon, thank you very much!


Mar 04, 2014 at 12:49 PM
Imagemaster
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p.9 #15 · Tamrons Response To AI Servo Issue.


oldpaws56 wrote:
I haven't seen one sharp image beyond 400mm yet. I think I will keep my Canon, thank you very much!


Just for you:





1







2







3




Mar 04, 2014 at 01:15 PM
DreamInColor
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p.9 #16 · Tamrons Response To AI Servo Issue.


oldpaws56 wrote:
I haven't seen one sharp image beyond 400mm yet. I think I will keep my Canon, thank you very much!


Here's a few.


_MG_4372_CarolinaWren by Neal_Lewis, on Flickr


_MG_9885_White-breastedNuthatch by Neal_Lewis, on Flickr


_MG_8706_TuftedTitmouse by Neal_Lewis, on Flickr



Mar 04, 2014 at 02:52 PM
DreamInColor
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p.9 #17 · Tamrons Response To AI Servo Issue.


Imagemaster - Love that hummingbird shot. Nicely done!


Mar 04, 2014 at 02:54 PM
AnthonyRay
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p.9 #18 · Tamrons Response To AI Servo Issue.


Imagemaster wrote:
Just for you:


And then these guys make me want the lens all over again!

Stop it!



Mar 04, 2014 at 03:52 PM
cengell
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p.9 #19 · Tamrons Response To AI Servo Issue.


Thank you to everyone for the info!

Christopher



Mar 04, 2014 at 03:59 PM
greenfield
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p.9 #20 · Tamrons Response To AI Servo Issue.


Bryan from TDP likes AI servo with that lens:
[...] AI Servo with fast-approaching subjects is a much bigger challenge to AF systems. I primarily used the best-available center focus point for this testing. Overall, with over 1,500 images captured and reviewed, my results from this lens were mostly good. Occasionally, I had a complete burst of images that were out of focus and sometimes when this occurred, there was not even focus point indication showing for the raw files (in the DPP quick view window). Closer subjects at longer focal lengths and lower light levels were unsurprisingly the most challenging to this lens. Based on the amount of hunting this lens does in one shot AF mode, I was surprised at how well it worked in AI Servo mode. [...]

Complete review on TDP:
http://www.the-digital-picture.com/Reviews/Tamron-150-600mm-f-5-6.3-Di-VC-USD-Lens.aspx



Mar 05, 2014 at 11:38 PM
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