Question 1

HELP!  The silver release screw has come out and I cannot remove the adapter from my Nikon Lens, how do I take it off?

Accepted Answer

See my Photo with arrow showing how it SLIDES towards the camera body in my Aug 17 2017 review 
It's a release lever that is shaped like a button. Don't press it: Slide it.
photo here:  https://www.amazon.com/gp/customer-reviews/R2MNHAVLKT0I6N?ref=pf_ov_at_pdctrvw_srp

Question 2

when I attached the lense with the adaptor, the sony NEX camera does not recognize the lense. anyone with similar problem? is there a solution? thnks

Accepted Answer

Yes. The first answer is correct.  You have to set the camera to  open the shutter even when there is no lens,  then adjust everything manually.  As he says, as long as you make all the adjustments yourself, it works, just as all cameras worked back in the 1960's.   For me, that was too much trouble.  So I got a lens that works with the camera.  The Sony made Sony E 50mm F1.8 OSS is a low cost prime with the best rating for clarity from Dxomark and it also has the OSS which very few prime lenses have, so it's the obvious choice

Question 3

I just purchased this adaptor for my Minolta Maxxum 7000 lenses to Sony a6000.  It fits the a6000, but not the Minolta lense.  What should I buy?

Accepted Answer

You will see from the description that this was meant to fit a Minolta "MD" lens.  MD lenses were made in the early 1980s .  Minolta introduced a new lens mount, the A system, breaking compatibility with its earlier manual-focus lenses in the MC and MD system. The A lens mount is still the same today, but some modifications have been made to the electronic contacts to facilitate new functions such as motor zoom (xi lenses, now discontinued) and a more sophisticated flash metering system (ADI).  I don't know if Fotasy or any other maker produces an adaptor for a the "A" mount lenses.  If you want to use this mount BUY A MINOLTA Rokkor MD LENS.  They are found on eBay for very little money and are very, very good lenses.  They are manual lenses so you will have to do the focussing yourself!

Question 4

Would this work on a A7 without being cropped?

Accepted Answer

Hi - Just double-checked a couple of OM lenses on my Sony a7r using this adapter. I want to make sure I'm completely understanding the question: if you're asking whether there will be any vignetting of the image, the answer is no (except to the extent that a specific lens shows some light falloff at the edges, but that's not an adapter issue, and you'd have the same phenomenon on an OM film body). If the question is whether or not the image will be cropped (using the term to refer to the so-called "crop factor" associated with smaller-than-24x36 sensors): again, the answer's no. OM lenses are full-frame lenses, the a7 is a full-frame body - so no cropping of the image. Hope that's helpful!

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Manual F Mount Lens to E-Mount Adapter, NK E Mount Adapter, Compatible with Nikon F Lens Sony a7 a7R a7s II III IV a9 a7c Alpha 1 a6600 a6500 a6400 a6300 a6100 a6000 a5100 a5000 a3500 ZV-E10

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