Nikon lenses to Zenit body adapter?

[Lumpy Chicken]

I have a 35 mm Zenit camera which came with its standard Helios lens. It has a unique M42 thread mount which has a 42 mm diameter. I also have some Nikons which of course have a bayonet/T-mount style mounts.

I have seen many forums which ask for adapters to put old M42 threaded lenses onto newer DSLR bayonet/T-mount bodies. This is not the case.

I wish to do the opposite; to find a simple adapter to put my Nikon bayonet/T-mount lenses onto my M42 threaded Zenit EM. This means that this adapter needs a 42 mm M42 male thread (that of the Zenit lens) on one side, & a bayonet/T-mount (that of the Nikon body) on the other.

PLEASE PLEASE PLEASE PLEASE, if you could find this adapter somewhere to purchase online, or at least reassure me that there's one in existence, I would be eternally grateful!

[Franglais]

I don't think it can be done. There is an adapter for the 42mm to fit on the Nikon bayonet because the diameter of the 42mm screw is smaller than diameter of the Nikon bayonet. There is enough space between the barrel of the 42mm lens and the bayonet on the Nikon camera to put an adapter between the two.

Therefore - a lens with a Nikon bayonet is wider than the 42mm screw mount on the Zenith. It won't fit and you can't make an adapter like you can 42mm to Nikon.