Posted by on Jun 29, 2010 in Film | 2 comments

It sounds pretty scary but it’s actually not that complicated if you have the manual of your flash/camera (or know how to Google). So what are the¬†ingredients? It’s a simple division, lets get started. Guide Number The Guide Number of your flash unit or build in camera flash denotes it’s power at a given ISO. Lets take a build-in camera...

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