Re: Cirkut lenses

[Leonard Robertson <Leonard@xxxxxxxxxxxxxxxxx>]

	I finally found my collection of Cirkut instruction books. They agree with
the information Clayton lists regarding the Triple Convertible lenses. I
can also add this information on focal lengths for the double lenses:

		#6 Outfit - Graphic Rapid Rectilinear    8"-14".
		#8 Outfit - Graphic Rapid Rectilinear  11"-18".

	Also, the #6 Cameras came with a 7"-10"-15" Raptar 1A. These were all made
about 1931, so depending on the date of the original photo, you can
probably conclude a #6 Camera was not used.
	Keep in mind, larger cameras could use smaller size film. The film spool
holder on a #8 Cirkut Attachment can be set to a notch to hold 6 1/2" film
(the actual size used in the #6 Outfit). A #10 Camera can use 6" and 8"
film. I have a Century Camera Division EKC catalog that lists these film
sizes available for the #16 Cirkut: 8", 10", 12", and 16". All this
probably complicates trying to tell what focal length was used for a
certain picture, but few things concerning Cirkuts are ever simple.

																					Leonard

> In answer to your lens question I can give you these straight out of a 1920
>Eastman Kodak catalogue.
>
> #5    6 1/4, 11, 14
>
> #6 outfit    7 1/2, 12, 18
>
> #8 outfit    10 1/2, 18, 24
>
> #10    10 1/2, 18, 24
>
> #16    15, 24, 36
>
> you are correct in stating double convertibles were also offered, my
>catalogue doesn't list them but I've seen them listed in Cirkut operating
>manuals.
>
>Film....I do have a junk roll you can have, it's cut down aerial film....I
>use it for testing the mechanism. I don't have any spare 8" spools, but sure
>would like some.......leaders.....I make my own from black paper bought from
>an arts supply, I make them longer than Kodaks and from heavier paper, they
>work better than the proper ones, I have less problem with burnt edges from
>light leaks.
>
>Clayton
>
>
> > I'm in the planning stages for a rephotography project of Cirkut photos
> > of local historical interest. I've been in contact with the state
> > historical society and will be evaluating their collection in the near
>future.
>
> > I'm hoping to compile a list of the lens focal lengths supplied by EKC
> > with Cirkut cameras in the 6", 8" and 10" formats. So far from the list
> > archives and other sources I've come up with the following
>
> > Can anyone add to or refute any of my list so far?
> >
> > Also, some time ago I put out a plea for junk rolls of 8" film. I
> > Thank you,
> >
> > Dick Streff
>