I want to use a Pentax SA/KPR Lens on my Nikon D7000 F-Mount...

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topgunwghs

Senior Member
Like this states, there is a listing up and ending soon, so quick help!

I want to use :Sigma DG 120-400mm f/4.5-5.6 APO HSM OS Lens:

On my Nikon D7000 F-mount: Is there an adaptor out there that will allow me to mount this lens to my D7000 without problems, and will it AutoFocus from the D7000's internal motor?

​Thanks for the quick responses! I can't pass up this deal if I can use it.
 
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pedroj

Senior Member
topgunwghs said:
Like this states, there is a listing up and ending soon, so quick help!

I want to use :Sigma DG 120-400mm f/4.5-5.6 APO HSM OS Lens:

On my Nikon D7000 F-mount: Is there an adaptor out there that will allow me to mount this lens to my D7000 without problems, and will it AutoFocus from the D7000's internal motor?

​Thanks for the quick responses! I can't pass up this deal if I can use it.
Click to expand...

Why not buy a Nikon mount lens....
 
Scott Murray

Scott Murray

Senior Member
Looking into it more its hard to say if that adaptor will work, maybe ask a camera store in the know. Seems to be a lot of mucking around.
Also does the lens have a pin or ball bearing? If so then it will most likely cause issues. The SA/KPR should be similar to a K mount from what I have read but dont take that for granted as there are many variables.
 
Scott Murray

Scott Murray

Senior Member
Just found this.

The KPR mount is a variation of the K mount which includes both the Pentax and Ricoh program pins. (Ricoh also used the K mount, but had a different pin for the "A" setting on the lens). The only difference between a KPR lens and a KA lens, is the KA lens only has the Pentax "A setting" pin. Genuine Pentax lenses used the KA mount, 3rd party lenses used KPR (so they could also be used with full functionality on the Ricoh XR-P)
 
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topgunwghs

Senior Member
I understand, so the rear cap says SA/KPR which is the cap that Sigma puts on both mounts K and SA, I am unsure on how to tell which one is which unless I have it. From the picture, it looks like the black circle for SA is over the Red Dot, which would be my only indicating guess as to it being an SA...?

sigma_120-400_(4).JPG


sigma_120-400_(5).JPG
 
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topgunwghs

Senior Member
I bid and won, I will order the K mount and let you know. Worse comes to worse, it doesn't fit and I sell it on Amazon for 2-3x the amount I got it for! 400mm :cool: let's hope!
 
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fotojack

Senior Member
The shot of the owl is the worse of the three shots submitted. See that reddish/purplish haze around the bird, on the top and on the right side? Not good. I'm having a brain cramp at the moment and can't remember what that's called, but it's not good. :)
 
Scott Murray

Scott Murray

Senior Member
fotojack said:
The shot of the owl is the worse of the three shots submitted. See that reddish/purplish haze around the bird, on the top and on the right side? Not good. I'm having a brain cramp at the moment and can't remember what that's called, but it's not good. :)
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Chromatic Aberrations? CA
 
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