[Konvas] Film thickness? (off-topic)

[H. W. Stone]

 If you go to the Kodak site and look at the tech specs it lists it, but in your case send Kodak an email explaining the camera, pitch needed, and ask what films they stock that "fit your bill."





 


 

-----Original Message-----
From: Adam Frey <thefirstrule at chainsawlinux.com>
To: Konvas Discussion List <cinema at konvas.org>
Sent: Wed, 10 Sep 2008 4:46 pm
Subject: [Konvas] Film thickness? (off-topic)










Hey all,
This is off-topic, but how do you find out the thickness of a particular 
film? I bought an Operators Manual for a FASTAX 16mm camera that came 
with a (supposedly) working WF3 Fastax (all I had to do was pay for the 
extra $20 for the camera shipping).

It says inside the door:

   CAUTION
   to avoid damaging camera

   USE only fresh
   full pitch (.3000")'

   WOLLENSAK FASTAX FILM

   DO NOT let door
   when removed from camera
   rest on viewing prism

Looking in the Operators Manual (which has a lot of information, btw, 
and not just related to the WF3 model), all the models that they made at 
the time are listed. It says the following for the WF3:

Catalog No.: WF3
Frame size : 16mm FF (full frame)
Film capacity: 100'
Min. Speed PPS: 150
Max. Speed PPS: 8000
Camera Type: Framing
Lens Mount: FX1
Std Lens: 2" f/2.0
Te*: 1 / 3 x PPS
    (someone has written above it: 1 / 3 x 4000 = 1 / 12,000 sec)
Size and Weight: 12" x 12" x 12"  25lbs.
Shipping Size and Weight: 17" x 16" x 16"  50lbs.
Voltage Requirements:
    WF01 Goose AC Volts: 30 Min / 280 Max
    WF300A DC Volts: 11 Min / 28 Max

The mathematical formula Te* (actually, the "e" is extremely small, but 
I am typing in ASCII) looks to mean the effective shutter speeds. I 
believe PPS means "Pictures Per Second". Btw, there are a good many 
other cameras, with their information, listed.

On another page, it lists the camera as a "Category I" and shows the AC 
and DC speed curves. DC is listed from 8 Volts (2.3 Amps) to 28 Volts 
(3.0 Amps). It shows a graph with "Applied Voltage", which is higher, 
and "Operating Voltage", which is lower - so an 11V applied voltage is 
an 8V operating voltage.

Actually, for as boring as it may look, it is absolutely fascinating 
stuff. The schematics, curves, and everything else are in there, so if 
the camera does work (and I can find film with a thickness of .2992 to 
.3000), then I can start doing really cool things like film hummingbirds 
and bees, work with miniatures, and other cool stuff...

But, if it doesn't work, I can always use it as a really heavy 
paperweight for when another hurricane blows through...

Whoops, I just realized I was digressing big-time. Back to my question: 
how do you find out the thickness of film?

Thanks!

Adam Frey
Director/Cinematographer
Crimson Chain Productions
http://crimsonchain.com

Crimson Chain Productions
PO Box 35
Libertytown, MD 21762



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