Timeline for Can you replicate the look of orthochromatic film with a blue filter on panchromatic film?
Current License: CC BY-SA 4.0
12 events
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| Jul 30, 2019 at 18:12 | comment | added | Stan | You can use the curves to show sensitivity by turning over the graphs (top for bottom) effectively changing density to transmittance. | |
| Jul 30, 2019 at 18:02 | comment | added | Stan | @timvrhn Yes they'll partially block out yellow/orange light but ortho isn't sensitive to those wavelengths anyways so it doesn't matter. You can develop ortho under yellow (bright high-pressure sodium vapour) light. | |
| Jul 30, 2019 at 14:17 | history | edited | xiota | CC BY-SA 4.0 |
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| Jul 30, 2019 at 13:58 | vote | accept | timvrhn | ||
| Jul 30, 2019 at 13:58 | comment | added | timvrhn | Very helpful charts. Together with this useful tool one can get an idea of the range of light passing through the filter. The 44A seems to hit the spot | |
| Jul 30, 2019 at 13:42 | comment | added | xiota | @timvrhn Added density curves for Kodak 38A (blue) and 44A (blue-green) filters. How to interpret is another problem. | |
| Jul 30, 2019 at 13:41 | history | edited | xiota | CC BY-SA 4.0 |
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| Jul 30, 2019 at 13:33 | history | edited | xiota | CC BY-SA 4.0 |
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| Jul 30, 2019 at 13:13 | history | edited | xiota | CC BY-SA 4.0 |
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| Jul 30, 2019 at 13:03 | history | edited | xiota | CC BY-SA 4.0 |
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| Jul 30, 2019 at 12:58 | comment | added | timvrhn | Good call on using a cyan filter, instead of a blue filter. I still wonder whether these filters won't partially block out yellow/orange light, which it should not | |
| Jul 30, 2019 at 12:51 | history | answered | xiota | CC BY-SA 4.0 |