doable: swapping out lens mount plate CV125?

jf56 · Joined: 02 Feb 2010 Posts: 10 Location: newport, oregon

Is swapping out a lens body from one mounting plate (canon) with a Nikon plate doable? And when I ask "doable" I mean is it "simply" a matter of changing the mounting plates, or is there a lot more to it? (focal plane distances, etc)?

I found a dealer from china who insists that he can do this, to give me a lens that will focus to infinity without any issues at all, and mount onto a Nikon body, whereas the lens originally has a canon mount. Any replies appreciated.

sichko · Joined: 20 Jun 2008 Posts: 2475 Location: South West UK

There's a link ...

http://forum.mflenses.com/nikon-d40-modified-to-m42-t20965.html

... which describes the replacement of the Nikon F mount on a D40 with an M42 mount.

Presumably you could do it with a Canon mount athough, IIRC, the Canon mount has a wider throat than Nikon F and this might cause problems.

indianadinos · Expire: 2011-12-05

Hi,

I'm far from being an expert, but i would say that mounting a Canon lens on a Nikon body keeping infinity focus without additional diopters would be almost impossible: the Canon EF register distance for lenses is 44mm, while Nikon has a register distance of 46.5mm. Moreover, the throat of a Canon mount has a diameter of 54mm, where the Nikon one has 44mm only ...

Definitively, i would say that a Nikon lens can be mounted on a Canon body without hassle, while the opposite is almost impossible: even if the barrel of the lens would be shortened of about 2.5mm, you would still have the problem of the diameter of the bottom of the lens ...

But, as said before, i can be wrong ...

Cheers

Orio · Expire: 2012-12-04

There would be a lot more to do than switching plates and I believe the job is downright impossible for the reasons explained by the gentlemen before me.

Scheimpflug · Expire: 2011-11-18

sichko · Joined: 20 Jun 2008 Posts: 2475 Location: South West UK