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Re: [Rollei] TLR microscope attachment

In a message dated 4/17/2003 10:01:11 AM Eastern Standard Time, syt3   writes:

> Hi,
> I've seen online some  microscope objective attachments for Rollei's TLRs. I
> am interested giving one a try but sometyhing puzzles me. How do we focus on
> the subject with a microscope objective attached to the lower lens? Do we
> have to set the subject in the focal point of the objective 
> prior to mount
> it on the TLR?
> Thank you in advance for your help.
> Cheers,
> Sylvain Texier
> syt3  

First of all, you need a microscope with a vertical eyetube, or the whole thing would not be stable, since the rollei is going to be supported only by the bayonet fitting. 

(of course you could use a copy stand to help out).

1.  Focus the microscope without the camera in place)

2.  Remove the eyepiece and attatch the adapter to the drawtube and reinsert the eyepiece.

3. You need a rubber or soft neoprene washer the same diameter as the eyepiece with an opening larger than the eyepiece optic, just to be SURE the front lens element can't inadvertently contact the metal rim of the eyepiece. (an "O" ring from the hardware store would work)

4. Mount the VIEWING lens of the rollei onto the adapter.

5. focus the microscope image on the viewing screen. This should be possible with the camera focused pretty much at infinity, but you MAY need to reposition the adapter.. this is why you need this washer, since loosening the adapter with the camera mounted MIGHT allow it to drop onto the eyepiece.

6.Once focused, remount the camera to the TAKING lens.. without disturbing either the camera focus or the position of the adapter.

You can now make your photographs.  As you refocus for different microscope slides, use only the microscope stage focus.

By the way, if you want one of these (rollei microscope adapter), I have one I bought new and haven't used much that I'd be happy to sell at whatever the going rate is. 

G. King