5 minutes is probably too long. Make a test negative by pulling the dark
slide out an inch every 30 sec.
Richard Heather
f...@cybernet.co.nz wrote:
Anyone had any experience on starting exposure time on bright
summer day using TMax100 10x8 sheet film. (Using Rollo Pyro)
Camera f/l = 600mm,
Several of the portfolios on my website were photographed with pinhole
cameras of various types that use 4x5 holders. See the URL at the
bottom of this message.
Jan Kapoor
Temi wrote:
I plan to build a pinhole camera out of wood that would use a 4 x 5 film
holder. Does anyone know of any
Have you ever given thought to allowing folks to
choose from several popular film types, so that the
values on your page would take into account
reciprocity? For my cameras, I have printed your
page, then corrected the values based on reciprocity
charts, but it would be convenient for newbies to
Plug the number (fstop) into my calculator
http://www.MrPinhole.com/Exposure.html or
http://www.MrPinhole.com/calcpinh.html
Then add 1 fstop to bracket
Larry
-Original Message-
From: f...@cybernet.co.nz f...@cybernet.co.nz
To: pinhole-discussion@p at ??? pinhole-discussion@p at
My calculation from your figures is that the metered exposure would be 1752
times the exposure at f16. Using the sunny 16 rule for exposure of TMax
100 film, the metered exposure for the pinhole exposure would then be 17.5
seconds, or something in the range of 30 seconds actual.
- Original
Anyone had any experience on starting exposure time on bright
summer day using TMax100 10x8 sheet film. (Using Rollo Pyro)
Camera f/l = 600mm, p/h dia .9mm, approx f= 660, subject = sunlit
bush
Does 5min/10 min bracket sound in the ball-park? (Expensive!)
Thanks,
Warren
Warren Jones
MBE P350
