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HoloWiki - A Holography FAQ β

DCG Variables

Here are variables and their effect on the DCG process

AmDi concentration - Lower redder less sensitive, higher bluer more sensitive

Drying Temperature (Low ~20C) - Lower yields more triple helices, thus harder gelatin, clearer and more narrow band

Drying Temperature (High ~30C) - Higher yields less triple helices, thus softer gelatin, less clear and more broadband

Emulsion thickness - Thicker more narrow banded less light gets through, thinner more broadband

Emulsion temp while mixing - Too low deforms on emulsion, too high pits, optimal centered at 120F

Film freshness (film age) - Young broadband with milky tendeny, old narrow band and clear tendency

Room Temp (exposure) - Warmer increased sensitivity

Room Humidity (exposure) - More humid increased sensitivity

Exposure Time - Longer harder bluer narrower banded, shorter softer redder broader banded

Dark reaction time - Longer harder bluer narrower banded, shorter softer redder broader banded

Fixer Time - Too short milky soft , too long harder bluer

Light or heat fixing (if applicable) - Low light/heat softer broader banded milky, lots light harder bluer narrow band

H2O rinse time - Too short non clear film

H2O rinse temperature - Hotter broadband, lower narrow band

IPA concentrations (ratios) - Faster increase in ratios (35, 100) broadband, slow increase (30, 50, 70, 90, 100) narrower banded, modifying 50% from 35- 50% shifts color towards blue.

IPA time - Shorter broadband, longer narrow band

IPA temperature - Higher broadband, lower narrowband

Blow drying - Too slow uneven blotches, to short degradation of holo over time

Wavelength - The shorter wavlengths the higher sensitive, and will greatly effect the other variables