The materials we use as photographers, especially in large format, vary from person to person. Getting repeatable results with so many variables to the process can be tricky. One way to help get a handle is testing your photographic films. Today I'm going to show you how to test B&W film in a large format camera to determine your personal film speed (ISO) and normal development time.

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00:00 Intro
00:40 Why Test Film?
02:01 The Bond Method
03:00 Test Setup
05:08 Metering
07:05 Testing

09:31 Developing
11:12 Finding ISO
12:55 Min. Time, Max. Black
15:00 Finding Dev Time
16:38 Conclusions

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