Replace mount ring on Nikon 70-300mm f/4-5.6G AF Zoom Nikkor Lens

Ice Planter

New member
Hello! New to this forum and my Nikon D5300. Recently broke my Nikon 70-300mm f/4-5.6G AF Zoom Nikkor Lens off my camera - the cheap plastic mount ring broke. Seems like a common problem and I found numerous options to buy a bayonet mount ring for similar lenses (18-105mm 55-200mm, etc.) but none for the 70-300mm.

Question is can I use these other mount rings as they adapt to same camera? Or, would I have limited use, for example, the AF contacts not lining up?

Thank you in advance!

Ice Planter.
 

pforsell

Senior Member
Hello! New to this forum and my Nikon D5300. Recently broke my Nikon 70-300mm f/4-5.6G AF Zoom Nikkor Lens off my camera - the cheap plastic mount ring broke. Seems like a common problem and I found numerous options to buy a bayonet mount ring for similar lenses (18-105mm 55-200mm, etc.) but none for the 70-300mm.

Question is can I use these other mount rings as they adapt to same camera? Or, would I have limited use, for example, the AF contacts not lining up?

Thank you in advance!

Ice Planter.

Probably a mount ring from another lens will not be a good fit. It is possible Nikon uses certain parts in several lenses, but you'd need to find out exactly which which lenses share parts.

There are several possible issues if you try to fit a "wrong" part into your lens. The part might not fit physically, or as you mentioned some other part of the lens would be hampered by the wrong part even if it was possible to fit it in. Then again the screw holes might not be in the right place, and a more severe problem: if the "wrong" mount is of the wrong thickness to the lens, you might lose the ability to focus to infinity, or have severe cases of front/back focusing.

As the AF 70-300G is well known for it's distinctive lack of optical quality, I'd toss it. Why not replace it with something better that also autofocuses on your camera? There are plenty of options, only some here:

* AF-S 55-200 VR II
* AF-S 70-300 VR
* AF-P DX 70-300 VR
* AF-P 70-300 VR
 

Bikerbrent

Senior Member
Welcome aboard. Enjoy the ride.
We look forward to seeing more posts and samples of your work.

A good reason to avoid lenses with plastic lens mounts!
 
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