Zeiss photo support base

[wstenberg]

ALL,
I am trying to build the system shown in the photo. The picture is from the internet. I just received the support arm for the camera, but I can't figure out how it connects to the trinocular tube. The manual mentions a "light-tight sleeve". I don't have one, I don't know what it looks like. I don't know its real function.

I wonder it it's possible to find one or make one? I have included a photo showing the lower surface of the support arm.

Thanks!

[75RR]

The manual mentions a "light-tight sleeve".

Looks like a hood to me.
I have an afocal setup in which the camera and attached lens is suspended vertically from a tripod.
I place the lens about 1 cm above the projecting eyepiece and extend the incorporated lens hood over it.
It functions as a light tight sleeve.

[Hobbyst46]

I think that, from a purely mechanical point of view, it would be extremely difficult to have the gray supporting arm rigidly affixed to the pole AND simultaneously rigidly mounted on the photo tube, with the optical axis of the camera collinear with that of the phototube. Hence, like 75RR's setup, the supporting arm should surround the phototube top without actually touching it. Ambient light can also be blocked by means of a cloth sleeve, for example, the cloth of which raincoats are made.

[MichaelG.]

I think that, from a purely mechanical point of view, it would be extremely difficult to have the (gray plastic)supporting arm ...

The supporting arm is actually beautifully engineered in metal ... but yes: The missing component forms a 'light-tight labyrinth.

Leitz used something similar.

MichaelG.

[wstenberg]

OK, Thanks. I think I get it. Loose connection without a rigid connection between the camera and the microscope.

Now that I know what it is, I think I've seen it. It looks like the end of a soup can attached to the end of trinocular tube. It faces up into the recess of the support and acts as a light trap. Is this right?

I found a photo of one. I just need to find one- or make one out of a soup can.

Thanks again!

[MichaelG.]

It faces up into the recess of the support and acts as a light trap. Is this right?

Yes, that's it. ... Happy Hunting !

MichaelG.
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Edit: I see it is mentioned [but rather confusingly, not illustrated] in this brochure:
http://www.science-info.net/docs/zeiss/ ... ameras.pdf

P.S. ... There are some useful illustrations in this article:
http://www.quekett.org/resources/articl ... icroscopes
I forgot to mention that the basic design remained almost unchanged for decades:
I have an early version of the stand, in black-crackle paint, and the modern grey arm has only very small design changes.