BTZS film testing question

**Fred Braakman** · 10-Aug-2007, 23:27

The dilution I was using was the Kodak formulation. (1:7) . I will try the 1:64 dilution.

Thanks.

Fred

**j.e.simmons** · 12-Aug-2007, 05:03

I think 1:7 is too strong - I generally used one ounce of concentrate with either 31 ounces of water or 63 ounces of water.
juan

**Stephen Sample** · 1-Dec-2007, 15:25

Originally Posted by Andrew O'Neill

Personally I never did understand why you would want to test your film "outside" of the camera. Isn't "inside" the camera better? I mean, you do photography with film "inside" your camera...

I thought the same thing until I started using the BTZS system. Now I get exact exposure and even depth of field information and associated development times that really work. I use the tube development system and as a beginner, get great B & W negatives.