11-03-2007, 08:00 PM
|
 |
Blacktown isn't so black
|
|
Join Date: Jan 2007
Location: Prospect, NSW, 2148
Posts: 1,316
|
|
Thanks Bird, I recall there is a formula around somewhere to work out your power, it's something like the focal length divided by the mm size, or something similar, not sure where I read it, obviously in a thread on this forum (there isn't anywhere else to go for reliable info)...
My focal length is 1200mm, and I know what certain objects look like (size wise) with the 40mm EP, I can't wait to try a 9mm to see the comparative difference. It's a bummer the shops aren't open on Sunday's 
|