Digital HT™ Filters Digital HT™ filters are a state-of-the-art technological breakthrough in multi-coated photo and video filters. Made for the discerning professional and imaging enthusiast, Digital HT™ filters with Hi-Trans® Double-Sided Titanium Multi-Coating surpass even military specifications for hardness and durability.* Digital HT™ - High Transmission - filters offer the strength of a Titanium coating combined with the purest optical quality glass and Tiffen’s Academy-Award-winning ColorCore™ technology. They present unmatched scratch-resistant durability and worry-free cleaning while other coated filters on the market today cautiously suggest delicate, if any, cleaning procedures, in fear of destroying the coating (and thereby the filter). And that’s not all – these High Transmission filters feature a low profile titanium finish ring and anti-reflective black lock ring which sets these filters apart from the rest. 812® Warming Filter This exclusive Tiffen warming filter improves skin tones and is ideal for portraits taken on a cloudy day or outdoors, in shade on a sunny day. - Ideal for portraits or scenics
- Absorbs blue cast often caused by electronic flash
- Adds warmth to pale washed-out flesh tones
- Warmer results than Sky 1-A
* Independent testing based on these specifications was conducted at the Rochester Institute of Technology (RIT), Rochester, NY. 1. Abrasion test à ÒSevereÓ abrasion test according to MIL-C-48497, using eraser stub certified to MIL-E-12387. 2. Adhesion test à tape adhesion test according to MIL-C-48497, using adhesive tape certified to MIL-A-A113 rev C. 3. Humidity Test à humidity test in accordance with MIL-C-48497, 95% RH at 50
degrees C for 24 hours.
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