I am thinking to run some tests of exposure and development of film using a cali brated negative step tablet ( I cannot buy a densetometer.that's too expensive!! ) On the book"Negative" by A.Adams he wrote "You can secure fairly accurate den sity measurements using the tablet." However, I've never seen the step tablet b efore, so I have no idea how it looks like and how it works. I found that the co mpany named "stouffer" makes Transmission Step Wedges and Transmission Projectio n (TP) Step Wedges, and I am wondering which to buy for measurement of density. Also, I found that there is an unclibrated negative step tablet avairable on a market. What is the difference between calibrate and uncalibrate. If anybody kn ows the way of measureing a density of negative using a calibrated negative step tablet , please give me some advice. I am using 8x10 T-Max 100 film and T-Max D ev. using JOBO CPA-2 processor. Thank you Ric Yama
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