notations on making separation negatives. bits from the past intended for today.
direct seps are easiest, but you create “time seps” as well — trichromie.
contact seps are easier than enlarged seps. learn what standard light is -- then you can begin to translate "old" literature. Use the theory and experience of those who made their living in labs. contact: standard light standard light - tungsten - first, early innovator lab: Evans & Peterson Color K&M filtermatic and K&M Point Light … Omega ULE system 3 FC = .3 density from a 3.0 wedge density AIM ~= .4 shadow negative using silver density steps will introduce you to the “green problem” — aka, green gaps calibrate with color strips &&& silver wedges derive “Relative Exposures” of the sep set 29, 61, 47b notes from tabula rosa: super XX to Tmax. XX is twice over. convert those historical refs to current start points. Oh. use HC-110 B at 72F — visual evaluation/ no densitometer, make a BW print onto known paper. print the Green Sep, unless GREEN is the dominant scene color. (then use red) — First seps from: DuPont Fine Grain Pan (20x) easy Grain of seps: 1975-80) Plus-X -- lowest, best enlargement Sep Type 1 (reciprocity notes) XX - highest grain -Green: less exposure longer Development — DS Base exposure: (working with ‘factors’) (25) Red ~=~ 1 (58) Green +1/3 (47) Blue + 2 2/3 OR take blue as the base exposure, then apply ND filters to the RED & GREEN exposures. — newton ring offset powder // gum glass watch RH of film room. don't mix exposure, storage, processing stages in same room. — tmax contact [at asa 6] 29 24 sec 61 14 sec 47b 135 sec — HC 110 A,B // C,F DK50 st, 1+1 // 1+2, 1+3 D76 st, 1+1 // 1+3 Seps // masks from back in the day: Dupont 16D 6,7,8,9 == for gammas of .6 to .9 /.Sure made it easy. -- watch how you dry the seps. angles matter. never force dry (use "secret" dryer) learn how to mix D76 so it doesn't "shift" on you. Oh, avoid those who don't know how.
- the path is the destination
- the destination isn’t on any path
- MA (japanese)
PS. what do I currently use? Ilford: delta, ortho plus, fp4+ — not Kodak. I have it. Have used it. don’t now.