Shane, many thanks for the link.
I ran a regression on David Tatnall's data and a combination of his and mine, and found the following factors:
My data : 1.36
David's data: 1.29
Combination...
Type: Posts; User: lumiere_et_son; Keyword(s):
Shane, many thanks for the link.
I ran a regression on David Tatnall's data and a combination of his and mine, and found the following factors:
My data : 1.36
David's data: 1.29
Combination...
Yes - In an otherwise dark room, I used a 3200K tungsten fresnel light with a CTB gel to convert to 5500K (and dim) and another ND gel to dim it further. Decent approximation of moonlight, and also...
Not sure precisely of your meaning - this is for long exposures (>1 second). Testing was done with c. 5500K light.
Bergger Pancro 400 Reciprocity Characteristics
I like Bergger Pancro 400 in 4x5 and became curious about how it behaved with long exposures. Now that it is available in 135, I am able to expeditiously and affordably experiment.
Knowing that...