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US3392021A - Photographic anti-halation layers - Google Patents
- https://patents.google.com/patent/US3392021A/en
- US3392021A - Photographic anti-halation layers - Google Patents Photographic anti-halation layers Download PDF Info Publication number US3392021A ... halation Prior art date 1965-05-25 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the ...
US1879537A - Anti-halation layers for photographic material
- https://patents.google.com/patent/US1879537A/en
- US1879537A US488990A US48899030A US1879537A US 1879537 A US1879537 A US 1879537A US 488990 A US488990 A US 488990A US 48899030 A US48899030 A US 48899030A US 1879537 A US1879537 A US 1879537A Authority US United States Prior art keywords photographic layers halation fuchsone dyes Prior art date 1929-10-31 Legal status (The legal …
Anti-halation layers | Photrio.com Photography Forums
- https://www.photrio.com/forum/threads/anti-halation-layers.27289/
- Mar 21, 2007. #5. As I understand, the anti-halation coating helps prevent the scattering of light when the image from the lens hits the film. I just looked up the halation on dictionary.com. a blurred effect around the edges of highlight areas in a photographic image caused by reflection and scattering of light through the emulsion from the ...
Anti-Halation Layer | Photo.net Photography Forums
- https://www.photo.net/discuss/threads/anti-halation-layer.452597/
- The difference in image halation between the 'AURA' and 'non-AURA' versions of Efke 820 are very subtle. This may be amenable to enhancement be covering the film pressure plate in silver foil - but I've not tried this. I believe pre-washing a film before exposure can be used to enhance it's sensitivity.
What is Halation - The Darkroom Photo Lab
- https://thedarkroom.com/cinestill-50daylight-800tungsten-xpro-c-41-color-negative-film/what-is-halation/
- Halation is the effect that occurs when the bright areas of an image appear to softly bleed around the edges of dark areas. This is caused by light going through the emulsion layer, bouncing off the base of the film and exposing the adjacent emulsion. Some film is manufactured with a black anti-halation coating on the base side. Halation is the ...
anti-halation backing washout | Photrio.com Photography …
- https://www.photrio.com/forum/threads/anti-halation-backing-washout.139378/
- Aug 5, 2016. #9. There are 4 types of anti-halation coatings. 1. An emulsion layer containing a water soluble dye. The most common situation. 2. The anti-halation dye is incorporated in the film base and therefore cannot be washed out. 3.
* Antihalation (Photography) - Definition - Online Encyclopedia
- https://en.mimi.hu/photography/antihalation.html
- ANTIHALATION COATING-A light-absorbing coating applied to the back side of the support of a film or plate, or between the emulsion and the support, to suppress halation (also called antihalation backing). See HALATION. A spray wash and buffer removes the rem-jet ~ backing.
Anti-halation on E100G? - largeformatphotography.info
- https://www.largeformatphotography.info/forum/showthread.php?14877-Anti-halation-on-E100G
- Well, having my new darkroom, a new (to me) CPA-2 with a 3010 drum, a batch of Agfa "Process 44" that officially expired 2 weeks ago (no, the bottles WEREN'T full - I know, I know! ), and a brand new box of E100G, I could't resist doing some 8x10s today and see what the Kodak E100G looks like. I ran some Fugi Provia when the chemistry was fresh and they were ok but …
Anti Halation Undercoat AHU Layer - Sensitive Layer
- https://www.tanguayphotomag.biz/sensitive-layer/antihalation-undercoat-ahu-layer.html
- This is called an anti-halation layer and in the case of film products can be coated on the backside of the film and removed during processing (right hand diagram in Figure 12), or coated as the first layer of the film product, as in the middle diagram. More details of the right hand case appear in Chapter 12 during the discussion of motion ...
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