D7100 and Tamron 150-600

[Ted Evans]

The Tamron came a couple days ago but so far I am disappointed. No doubt some, perhaps most, is operator error but there may be an alignment problem also. It seems to be sharper when I manually focus as opposed to AF. After my shop warms up, I am going to attempt to fabricate a lens alignment setup and see if anything shows up. So far, my old Nikon 300 f/4.5 is sharper but then it is manual focus only. I have it and a Nikon TC-14B listed on eBay but now I am hoping they do not sell, at least until the Tamron issue is resolved. BTW, it is on a tripod with VC off and remote triggering, from 400 to 600 tried.

 

[JacaRanda]

Can you show some pictures with exif included?

 

[Ted Evans]

Can you show some pictures with exif included?

Do I just copy the EXIF and paste it in with the images?

 

[jsecordphoto]

try doing some microfocus adjustments. On my canon 6d I had to bring my tamron to +9 at 600mm.

 

[Ted Evans]

What an education...after constructing my lens alignment fixture, I found the Tamron needed +16 but what was even more startling was that my Nikon 200 f/4 micro needed +16 and my Nikon 18-140 needed +18. Could this mean the D7100 is off that much and if it is, should I have Nikon check it? It is only a couple of months old with 500-600 clicks.

The image was done hand-held and I shake so badly that I was amazed that one could come out at all. It is 600mm, f/6.3, 160 and ISO 400.

 

[JacaRanda]

One big problem is your shutter speed. At 600mm handheld along with you saying how shaky you are - the shutter speed should be significantly faster. I shoot at 600mm often and my presets start at 1/2000 (anticipating my subject may move or simply takeoff and fly away).

Try again with a faster shutter speed and don't be afraid to use auto iso to compensate.

 

[JacaRanda]

Oh - BTW that shot is not bad at all for 1/160 @ 600mm. You are steadier than you think.

 

[480sparky]

One big problem is your shutter speed. At 600mm handheld along with you saying how shaky you are - the shutter speed should be significantly faster. I shoot at 600mm often and my presets start at 1/2000 (anticipating my subject may move or simply takeoff and fly away).

Try again with a faster shutter speed and don't be afraid to use auto iso to compensate.

I dunno. Is 1/20 too slow at 430mm?

 

[JacaRanda]

One big problem is your shutter speed. At 600mm handheld along with you saying how shaky you are - the shutter speed should be significantly faster. I shoot at 600mm often and my presets start at 1/2000 (anticipating my subject may move or simply takeoff and fly away).

Try again with a faster shutter speed and don't be afraid to use auto iso to compensate.

I dunno. Is 1/20 too slow at 430mm?

as long as you can hold it still. I'm old and wayyyy to jittery for that. LOL

 

[Ted Evans]

One big problem is your shutter speed. At 600mm handheld along with you saying how shaky you are - the shutter speed should be significantly faster. I shoot at 600mm often and my presets start at 1/2000 (anticipating my subject may move or simply takeoff and fly away).

Try again with a faster shutter speed and don't be afraid to use auto iso to compensate.

Thanks Jaca, I am aware of that, this was only an exercise in checking the focus. Normally, when I use anything longer than my 18-140, it is on a tripod with a remote shutter release if I am trying for anything more than a snapshot.

 

[Ted Evans]

One big problem is your shutter speed. At 600mm handheld along with you saying how shaky you are - the shutter speed should be significantly faster. I shoot at 600mm often and my presets start at 1/2000 (anticipating my subject may move or simply takeoff and fly away).

Try again with a faster shutter speed and don't be afraid to use auto iso to compensate.

I dunno. Is 1/20 too slow at 430mm?

Very impressive Sparky....I would never get one that clean even with 8k speed. I just asked my doctor about my shaking and his answer was....it's old age, live with it.

 

[jsecordphoto]

for all of your lenses to be that off, it may be something with your camera body.

 

[Ted Evans]

for all of your lenses to be that off, it may be something with your camera body.

I am wondering the same thing being that they are off very close to the same amount in the same direction. I may try to contact Nikon tomorrow and see what they say.

 

[JacaRanda]

One big problem is your shutter speed. At 600mm handheld along with you saying how shaky you are - the shutter speed should be significantly faster. I shoot at 600mm often and my presets start at 1/2000 (anticipating my subject may move or simply takeoff and fly away).

Try again with a faster shutter speed and don't be afraid to use auto iso to compensate.

I dunno. Is 1/20 too slow at 430mm?

Oh bummer. Apparently there is something you posted that I can't see.

 

[480sparky]

Oh bummer. Apparently there is something you posted that I can't see.

Like the photo? Click here.