MD to EOS conversion

[vulko]

Was hoping to find something here on the topic, but didn't succeed.

Anyways, I've found this convertion guides:
http://www.nanoer.com/md_eos_conversion.html
http://www.cogitech.ca/Rokkor/index.html

Looks like the most difficult thing is to take an m42->eos adapter and remove flange. Then attach it to the MD lens.
If I got i right, then why aren't there any adapters w/o flange? Like m42->Nikon F?

[revers]

I have this lens & like it a lot. Use it on my G1.

[vulko]

I recently got an MD Rokkor 50/1.2 on ebay, now I'm planning to convert it to EOS. As far as I see it's no much work.

Found another tutorial:
http://www.cogitech.ca/Rokkor/index.html

This is pretty easy to do, the only problem is to adjust infinity properly.

But still, considering this guide:
http://www.nanoer.com/md_eos_conversion.html

It looks like you can make an MD->Eos adapter with infinity, which has to be w/o the flat part. Like m42->nikon adapter. Why nobody makes those? If we put mirror problem on 5d aside, it would be a nice thing for all minolta lenses fans using eos cameras.

[vulko]

No interest on the topic?

[Attila]

Usually conversion is lens butchering especially if not done by pros. So many lens available and so many camera what is able to use them. These lenses are a piece of Industrial Art I hope it will be never popular here. Proper way in my opinion to modify digital camera instead of lens conversion if necessary. I would convert Konica Hexanons to 4/3 and I did skip it I bought a G1 instead. As a Canon owner you have plenty of opportunity to proper mount an 1.2 lens Pentax, Olympus, Nikon

[Scheimpflug]

[walter g]

[koji]

I did some conversion from MC/MD to EF mount, but to F mount is much tougher
than you would think, and also you may need to shave the mirror of Nikon camera.

Of course you can find an M42->F mount adapter/flange at eBay, but the register
distance you have to adjust by yourself. If you do not stick to Nikon cameras,
there are many other routes to go.

1) Change Canon camer's flange to MC/MD flange so that you do not have to butcher
the Minolta lenses (there is even the flange for EOS 5D FF camera)
2) Get Sony NEX3/5 and MC/MD -> E mount adapter, you do not have to anything at all,
3) Or get micro4/3 camera and appropriate adapter same as 2) in the above.

-----

Oh, "walter g" won. I myself changed the flange of EOS 350D, so I can use the most of
Minolta MC/MD lenses. But I now want to explore 2) in the above method, so that
my Contarex lens, Alpa mount lenses and Minolta lenses with APS-C size digital sensor.
To me m4/3 is a bit too small, and noise is problematic with high ISO. And possibly some of
m4/3 lenses can be used on Sony NEX camera only if Kipon makes an m4/3 -> E adapter!
(I am thinking Cosina's new m4/3 lens NOKTON 25mm F0.95 may have enough image
circle to cover APS-C size sensor, that's my wild dream of course.)

I measured the openning of E mount and the size of micro 4/3 lens, there is a possibility
to make the adapter, since the register distance of E mount is about 2mm shorter than m4/3's.

[convert1]

I did many conversion of diff. mount as well.
As we know, 1) we can change canon flange to MD flange, we "destroy" Canon body, and useable with Minolta Lenses only.
2) We replace the MD Mount with M42-EOS , the most of them after conversion useable wide open only, we "destroy" MD Lense

At the end especially for MD Minolta mount, I find another way to use it with Canon digital body.
I made one universal mount , which can be mounted to every MD lense, without any destroy of the Minolta lense.
At least for me, it is the solution to use Minolta Lenses with Canon digital body.
Regards

[walter g]

There is no need to destroy the Canon body to use a MD flange.
There is a kit made and it is fully reversable.
http://digitalrokkor.altervista.org/why.html

[walter g]

convert1

I'd really like to see your universal mount. I'm really curious.

[vulko]

Scheimpflug,
you are 100% right, it will rotate in the mount. Didn't think of that.

I got 2 lenses from ebay recently. its
md rokkor 50/1.2
and
mc rokkor pf 58/1.4.

Anyways, I'd like to try converting the MC first using the guide. It's not that hard as you can see.

What about those conversion kits? Where can I find one?

[Attila]

[convert1]

walter g , sorry for the late reply, as a man , I have to work .
Quick and dirty shot from my universal mount for MD Lenses.
It is moddified from M42-EOS adapter.
If I open every MD Minolta lenses, I can mount this universal mount.
Regards

[Attila]

[walter g]

Vulko, here is a link to Jim's site.
http://www.jimbuchananspace.com/Camera_Services.html

[convert1]

Hi attila,
yes , it is fully reversible.
I have only to shorten the aperture control , this part is definetly too long for FF Canon digital body.

[vulko]

walter g, thank you.

[convert1]

As I have mentioned before, it is self-made from M42-EOS Adapter

[vulko]

I'm wanna try to do the same thing.
The only problem, I don't know if it would work with MD Rokkor 50/1.2, would it?

[convert1]

I have converted MD Rokkor 50mm f1.2 as well, it works fine. No shave mirror required to use it with FF Canon digital body.

[vulko]

[convert1]

I didn't use any tutorial, which you mentioned above.
Sure , there are many ways to do it.
FYI : M42-EOS adapter is around 1.36 mm thin, I use lathe to make it 0.6mm thin.
0.6 mm plus 0.5mm (register diff from EOS-MD mount) = 1.1 mm.
It means 1.1 mm to be compensated ( hellicoid adjustment ).
Inside Rokkor 50mm f1.2 , there is one small screw inside , which you have to replace with smaller one ( make more space between lense group with mech. part of aperture)

[vulko]

Didn't you mean cm instead of mm?

[convert1]

We are talking about register difference between Canon EF Mount (44mm) and Minolta MD Mount (43.5mm). The Difference is 44-43.5 = 0.5mm