Some people know me from my 35mm with two DV camera's, if not, never mind, it works well with a rotating ground glass.

I have something on my mind what I'd like to try to build, but I want to discuss it first.
I have a very good (old) medium-format Rolleicord (with two lenses) which I want to use for a DOF adapter, but in a way that I can take it off and still use it for photography. It similar to this one: http://kotisivu.mtv3.fi/camera_collection/image1101.jpg
I want to use it because it gives great DOF I want a second adapter that is smaler that the one I built. I also think it will be suited for a static GG because the big size of the image (60 x 60 mm) and you can still use the focusing screen on top of the Rollei.

The first thing I'm curious about is the GG from a 8mm or super 8 viewer. Has anyone tried this yet? I think the higher quality ones have a build-in Fresnel. I'm referring to such a viewer:
http://www.filmshooting.com/scripts/gallery/albums/super8editorsviewers/aaa.jpg

I don't think it be good enough. I used it in school. The whole screen may give clear DV level resolution. 6x6 will give fraction of that.

I should have said: static GG, but oscillating or vibrating GG if it's necessary.
Radek, you're probably right. The reason I mention it is because I saw one at a bazaar today and I couldn't see the grain. I don't know if I should buy it, although it's just 12 euros.

EDIT:

OK, I made a drawing to show how simple the setup could be.
http://doublecam.250free.com/DVrollei.JPG
You just open the back cover (of the Rollei) where you normally load the film and put it to the GG. Than open the camera shutter.

Another big advantage of such a MF camera is it's focusing system on the side which very much resembles a follow focus.

I;'ve got one of those 8mm editing machine too Oscar, I am interested to see what happens with your. I wish I could pick up cameras like you can!

I wish I could pick up cameras like you can!
And if you could, ...you'd wish you could come to US with a green card.....

US? You two are Canadians. It's all a misunderstanding. The viewer was 12 euros. Don't think you can find a Rollei for such a price here....I got it for free. Two cheaper ones (Lubitel) for 3 euros each. Never paid more than 10 euros for a camera. If I could only find that lens Dan was talking about on his thread. I want to find it in a bazaar with a label: "doorbell - 5 euros."

Ha ha! Oscar, that is really funny - it does look like one, doesn't it?

He Leo, How well do you think your 8mm viewer GG would be in oscillating movement? Is it worth buying one to test it?

IF you can get one cheap enough, this one was $10.00 at the time so I thought I would get it. But when I first got it, it was to edit 8mm film, but now it just sits gathering dust, so if I had an oscillating mechanism, it might come in handy!