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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

 
Not_a_Canon
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Feb 16, 2017 10:08 |  #1141

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METAL1
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Apr 14, 2017 17:16 |  #1142

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Mozes
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Jun 09, 2017 12:26 |  #1143

I did get it today.
Cant wait to try it out tomorrow on the dirt track..
It needed a +15 MFA, but its sharp from 70 to 200mm :-P

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*Nikon D3s * Nikon D7100 * 18-105mm kitlens * Tamron AF SP 90 mm f/2.8 VC USD Macro * Tamron 70-200mm f/2.8 SP Di VC USD *
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Mozes
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Jun 09, 2017 16:41 |  #1144

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*Nikon D3s * Nikon D7100 * 18-105mm kitlens * Tamron AF SP 90 mm f/2.8 VC USD Macro * Tamron 70-200mm f/2.8 SP Di VC USD *
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Mozes
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Post has been edited 7 months ago by Mozes.
Jun 11, 2017 17:41 |  #1145

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*Nikon D3s * Nikon D7100 * 18-105mm kitlens * Tamron AF SP 90 mm f/2.8 VC USD Macro * Tamron 70-200mm f/2.8 SP Di VC USD *
Sportplaatje (external link) I flickriver (external link)

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TooManyShots
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Post has been last edited 7 months ago by TooManyShots. 2 edits done in total.
Jun 14, 2017 22:42 |  #1146

Just got this lens last week for a good price. Not sure about others but my copy, an used one in near new condition, has some front focusing issue at 70mm to 90mm, on a D7000. I can correct it by using +12 setting. That would just cause massive back focusing on the longer end, 155mm to 200mm. A +3 setting seems to have giving me the compromise here. 70mm at f2.8 can be soft but by f4, it gets sharp. At 200mm, it can be back focusing a bit depending on how well I can track anything that moves.

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TooManyShots
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Jun 14, 2017 22:48 |  #1147

Few more...

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Mozes
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Post has been edited 7 months ago by Mozes.
Jun 16, 2017 04:19 |  #1148

Mozes wrote in post #18374655 (external link)
I did get it today.
Cant wait to try it out tomorrow on the dirt track..
It needed a +15 MFA, but its sharp from 70 to 200mm :-P
thumbnailHosted photo: posted by Mozes in
./showthread.php?p=183​74655&i=i238231523
forum: Lens Sample Photo Archive
thumbnailHosted photo: posted by Mozes in
./showthread.php?p=183​74655&i=i63937129
forum: Lens Sample Photo Archive

Well that +15 MFA is with the Nikon D3s
Just putted on my D7100, and guess what, it needed a -14.
Quit the opposite ???
But still from 70 to 200 mm its sharp.

Strange enough its a little bit less on exact 135mm, on F3.5 its again sharp. by 130mm and 140mm its sharp, just only on 135mm?
by the way you only see it ad 100% pixel and with the 2.8 and 3.5 next to each other.

Its just great on the D3s....

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*Nikon D3s * Nikon D7100 * 18-105mm kitlens * Tamron AF SP 90 mm f/2.8 VC USD Macro * Tamron 70-200mm f/2.8 SP Di VC USD *
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TooManyShots
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Jun 16, 2017 18:38 as a reply to Mozes's post |  #1149

Glad I am not the only one...I thought I bought a lemon since I only paid $700 for a near new condition one....


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Mozes
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Post has been edited 7 months ago by Mozes.
Jun 17, 2017 01:45 |  #1150

strange thing happens.vmad
its tack sharp on 200mm 2.8 till a distance off +/- 10meters, but further away its off (frontfocus).
i did again a calibration on my D3s, but now on a bigger distance, and get a +5 MFA.
weird thing is, its still sharp ad 10 meters ?????

I don't get it. :eek:
today another try ad the motocross... fingers crossed.

Quik test, and its spot on..

10 meter 30 feet

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15 meter 45 feet
IMAGE: https://s26.postimg.org/k4cnqlqx5/image.jpg
2.5 meter 7.5 feet
IMAGE: https://s26.postimg.org/bi9e60ex5/image.jpg
3 meter 9 feet
IMAGE: https://s26.postimg.org/ud54wfeyx/image.jpg
4 meter 12 feet
IMAGE: https://s26.postimg.org/guy8k52tl/image.jpg

*Nikon D3s * Nikon D7100 * 18-105mm kitlens * Tamron AF SP 90 mm f/2.8 VC USD Macro * Tamron 70-200mm f/2.8 SP Di VC USD *
Sportplaatje (external link) I flickriver (external link)

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TooManyShots
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Jun 17, 2017 08:16 as a reply to Mozes's post |  #1151

I just shot a bike race this morning...and I got some back focusing issue at the longer end, which it should not be since I have set my AF tune setting to +2, instead of +3. You can try to use LiveView Auto Focus to get a reference shot at various distances. I would start with 100ft or near the infinity. Use LiveView AF to capture the shot at 200mm f2.8. Look at your distance scale and notice where it stops. Then, use normal AF to focus. Then, use AF tune to adjust the focus until both LiveView shot and the normal AF shot are completely identical in sharpness. Do that at 20ft to 30ft distance. And finally, under 10ft. That should give you some ideas if that particular AF tune setting would cause back focusing or front focusing under 200mm depending on the distance. My theory is that the lens, with the body, would try to AF correctly until your shooting distance is changing greatly. At some point, you have to decide if you want to optimize the AF at the shorter end or the longer end....

Unless...you send the lens to Tamron for re-calibration. Too bad I can't since I bought it used....


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TooManyShots
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Jun 17, 2017 11:18 |  #1152

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Mozes
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Jun 18, 2017 16:26 |  #1153

TooManyShots wrote in post #18380458 (external link)
I just shot a bike race this morning...and I got some back focusing issue at the longer end, which it should not be since I have set my AF tune setting to +2, instead of +3. You can try to use LiveView Auto Focus to get a reference shot at various distances. I would start with 100ft or near the infinity. Use LiveView AF to capture the shot at 200mm f2.8. Look at your distance scale and notice where it stops. Then, use normal AF to focus. Then, use AF tune to adjust the focus until both LiveView shot and the normal AF shot are completely identical in sharpness. Do that at 20ft to 30ft distance. And finally, under 10ft. That should give you some ideas if that particular AF tune setting would cause back focusing or front focusing under 200mm depending on the distance. My theory is that the lens, with the body, would try to AF correctly until your shooting distance is changing greatly. At some point, you have to decide if you want to optimize the AF at the shorter end or the longer end....

Unless...you send the lens to Tamron for re-calibration. Too bad I can't since I bought it used....

i use fastrawviewer (external link) with the focus peaking option.
it works just great, you instantly now where the focus is.

i keep the settings that i now have, all are spot on. its just when its on F2.8 and the distance is more then lets say 25 or 30 feet, i have to set it to 3.5 or F4 and its sharp again.
its the only thing that i till now have find where the nikon vrII better in is...

Focus point is on his chest.

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*Nikon D3s * Nikon D7100 * 18-105mm kitlens * Tamron AF SP 90 mm f/2.8 VC USD Macro * Tamron 70-200mm f/2.8 SP Di VC USD *
Sportplaatje (external link) I flickriver (external link)

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Mozes
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Jun 23, 2017 10:05 |  #1154

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Photo from Mozes's gallery.
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*Nikon D3s * Nikon D7100 * 18-105mm kitlens * Tamron AF SP 90 mm f/2.8 VC USD Macro * Tamron 70-200mm f/2.8 SP Di VC USD *
Sportplaatje (external link) I flickriver (external link)

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TooManyShots
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Jun 23, 2017 14:17 |  #1155

A shot from this past Sunday race. Is the lens weather sealed? I think I have to shoot in the rain, somewhat light, tomorrow...

IMAGE: https://c1.staticflickr.com/5/4237/35450592946_c49cdb5a8c_b.jpg
[IMAGE'S LINK: https://flic.kr/p/W1Dy​cL] (external link)harlembromptonrace6181​7_0_5small (external link) by vracing (external link), on Flickr

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