need help identifying the mount type for the mirror lens

[tarui]

i recently purchased a mto-11ca 1000mm lens from a guy who says he fitted a t to canon mount adapter but because i am using a nikon system, i searched around and found 1 guy using a kp-a/n adapter for nikon systems.

now i am confused, I thought these lenses are using M42 mounts and while there are m42 to nikon adapters, they have an infinity focus issue so that's why some people use the kp-a/n adapter that requires users to remove the m42 mount by removing 3 set screws on the side and using the kp-a/n mount.

I need more info on this because the current T2 to canon or m42 to canon adapter is stuck on the lens so i need more info and pictures of lens without the canon adapter to see if i can gently drill out the screws without damaging the mount/lens.

then i found this piece of info.

[Lloydy]

If the lens has a T2 adapter the whole adapter should screw off the back of the lens - T2 adapters are in two parts, the outer part with the knurling has the three grub screws that can be slackened and allows the knurled part to rotate on the inner part that has the female thread and is on the lens.
I would try to unscrew the whole thing and not drill the grub screws, at least you have the knurled surface for grip, and without that the threaded part is small and harder to grip.



I can't quickly find a picture of the two parts separated, but you can see the two parts clearly in this picture.

The mounting thread of the T2 mount is close to the M42 lens mount thread, but it is not the same. T2 mounts are available to just about every camera mount.

[tarui]

hi there

thanks for the prompt response

there's nothing to unscrew other than removing the adapter by removing the set screws or whatever it's called

if i remove that adapter, i should get this right?





Below are pictures of the lens I have