Here's a link to a handy little conversion program I use at work a lot.
http://tinyurl.com/it7n
Dave
On 8/24/05, Butch Black [EMAIL PROTECTED] wrote:
The sigma is GN 50m @ 100ASA, 105mm zoom reflector setting. The Pentax
one is GN 54m @ 100ASA, doesn't say what zoom that's at.
If you
Here's a link to a handy little conversion program I use at work a lot.
http://tinyurl.com/it7n
Dave
Thanks. I just downloaded it and it looks like a great program.
Butch
The sigma is GN 50m @ 100ASA, 105mm zoom reflector setting. The Pentax
one is GN 54m @ 100ASA, doesn't say what zoom that's at.
If you multiply by 3 do you roughly get your guide numbers in feet?
Butch
- Original Message -
From: Butch Black
Subject: metrics question
The sigma is GN 50m @ 100ASA, 105mm zoom reflector setting. The Pentax
one is GN 54m @ 100ASA, doesn't say what zoom that's at.
If you multiply by 3 do you roughly get your guide numbers in feet?
More or less
*GN(ft) = GN(m) x 3.3*
Butch Black wrote:
The sigma is GN 50m @ 100ASA, 105mm zoom reflector setting. The
Pentax one is GN 54m @ 100ASA, doesn't say what zoom that's at.
If you multiply by 3 do you roughly get your guide numbers in feet?
Butch
--
When you're worried or in doubt,
5 matches
Mail list logo