8 pages matching photometric field in this book
Results 1-3 of 8
What people are saying - Write a review
LOYD A JONES
4 The international unit of photographic intensity
6 other sections not shown
A Densitometer Employing an Alternating Current Amplifier
to introduce the attenuator after the second tube. to avoid overloading the grid of the second high. I. la Jones,. Photographic Sensitometry (1931), ...