I would recommend the Jupiter-9 85/2.

It's a great portrait lens and can be had for £30-50.

R

This is exactly the problem - the Nikon F lens mount is more or less the same diameter as Pentax K and almost the same distance from the film plane. This leaves no room for an adapter

M42 -> PK works because the M42 diameter is quite a lot less and so the adapter can fit inside. M39 -> M42 works because the adapter is very thin, as it's just joining 2 screw threads.

It is possible to directly mount a pre-AI Nikkor on Pentax. Some of them even lock in There was a thread about it on DPR last year by Sean Carpenter.

Unfortunately, none of my AI Nikkors will mount though, hence the adapter...

R

You can get a manual focus adapter fairly easily.

Unfortunately, because the Nikon lens to film distance is 1mm more than Pentax, you lose infinity focus.

I got one to allow me to use a Nikon telephoto on my Pentax cameras and the lack of infinity focus makes no difference for my use of it.

R

The Russian Peleng 8mm fisheye and MTO 1000mm lenses use T2 mounts.

They're both really good performers for what they cost

R

Ah the joys of narrow DOF - what a great lens the A50/1.2 is:




Thanks Simon

Cheers,
Reuben0

The K50/1.2 has now been sold

Thanks to all who expressed an interest!

Cheers,
Reuben0

The A20/2.8 is now sold.

The final item in my clearout is my K50/1.2 (f1.2 rather than f2.0).

Now I have Wintoid's A50/1.2, I don't need this one any more

It's in very good condition cosmetically (no marks or scratches). The optics are clean and fungus free, however there is some (very) slight discolouration to the coating on the front and back elements. It doesn't affect picture quality as far as I can tell because the performance is almost identical to the A50/1.2 (rather disappointingly ).

I was thinking around £75 for this one.

Cheers,
Reuben0

The DA 50-200 has now also gone to a Forum Member

If anyone is interested in the A20/2.8, then let me know otherwise I'll be eBaying shortly.

Cheers,
Reuben0

The A20/2.8 is Exc++ and I was thinking around £200. The Pentax DA 50-200 is mint and I would be after around £100.

But I'm open to offers on both of these

R

Sold to a forum member

I also have an A 20/2.8 and a DA 50-200 that are surplus to requirements.

Again, drop me a line if anyone is interested.

--
Cheers,
Reuben0