Quote Originally Posted by Len Robertson View Post
Gundlach only marked the rear lens cell as to focal length (11" for your lens). The front cell wasn't marked, except on the aperture scale on the shutter (as your scale is marked 14"). The two longer FL cells used together make the shorter FL (7 1/2" for your lens). It makes more sense to have marked both cells, but that isn't how Gundlach chose to do it. I suppose when the lenses were new, they included an instruction sheet that explained the FLs. They probably didn't think we would be using the lenses 80 years later without instructions.
Absolutely clear, thanks ! They didn't imagine that their cameras were so long lasting. And I cannot imagine the same will happen for my Canon EOS...

I think you have a full set of gears for the three focal lengths of your Gundlach triple-convertible lens, plus gears to use 120mm, 135mm, and 165mm lenses. I assume these three lenses were not included with the Outfit you bought.
Yes, so it is. Probably, I could try (later on...) to use some of the lenses I have on my Graflex.
Do all gears have a hole in the center to mount on a shaft coming from the bottom of the Cirkut Attachment? Gears for the later non-fan cameras had a short shaft with a threaded end built into each gear.
Sure they have that hole, and all of them fit perfectly onto the shaft.

I have read a warning about not running the motor of a fan Attachment without a fan in place. The fan slows the motor down and it is supposed to be bad for the motor or spring or something to run it too fast. You can probably make different size fans yourself to achieve a wider range of speeds.
Sure, I'll do that. Later on ....

I may have a formula that will help you with gear calculations, but I need to find it. Give me a couple of days to look.
:o Can you hear the sound of clapping hands ? The community of Cirkut newbies (and not only the newbies...) will be very, very grateful. Please don't forget it!
In http://photo.net/classic-cameras-forum/00FUVP you hinted at this formula, but the link to Clayton Tume's website is no longer working .
Did your Outfit include the tripod top/turntable with gear teeth around the outside? Also, did you get a groundglass focusing back for the camera body?
Len
Sure ! In "near mint" (or so..) conditions, with teeth perfectly grooved and undamaged, the top surface mirror-like and the rollers not worn-out.

Thanks very very much!

Roberto.