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1. Xenon tube for beseler 45a manufacturers number how to#
2. Xenon tube for beseler 45a manufacturers number manual#

So, I would appreciate anyone out there who is happy with this head for B&W that can help me adjust the ring-around numbers, especially how to enter minus numbers like -15?. Add a little contrast, and add a little more exposure is what I want to do. This means the data from the ring-around can't be input in color mode and I can't make minor adjustments to the image.

The issue, and my question, is once in the color mode I only have access to positive numbers between 0 and 255, I can't seem to figure out how to input minus numbers. I assume the above paragraph means to input the ring-around data -15G +5B in the color mode, am I correct?. When in data mode I can't change the ring-around numbers at all.

Then return to data mode, then using the color and adjusting keys, adjust the displayed exposure data accordingly.

Xenon tube for beseler 45a manufacturers number manual#

On page 30 the manual states.Īdjusting the grade of variable contrast paper.Īfter judging which ring gave the best exposure press the color key to recall that ring number and note the adjustment displayed - mine is -15G and +5 B for exposure #4. I am making an 8x10 print, the -15 +5 is just a little light but can't figure out how to change the exposure after the ring around. The enlarger lens is set to F/11 for 4 x 5 film. On my ring - around, the contrast for exposure 4 is correct. I have figured out how to determine the proper exposure, then do a ring - around to find the correct contrast. I have the instruction manual and am working only in black and white. I have 50 years of professional experience behind a camera with General Dynamics and NASA but am having a few issues. Just purchased a 45a to replace my stolen Ilford Multigrade 500 head. Hello, I have a question on the 45A head.