Uploaded May 2021 | Updated September 2026, 2 weeks ago

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This video what light transmittance is in video making, film production and photography. Topics covered include: What light transmission is, what causes light loss in lenses, reflections, glass defects, how light interacts with lens glass, how mirrors affect transmission of light, lens filters and much more.
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Lighting Techniques for Film & Video Production:
youtube.com/watch?v=WOhEthNE3us&list=PLBw3qczTjq1RgT8P__hahUHZpFXnLdxFL

Photography, Video Production & Filmmaking Tips & Training by Jim Costa Films:
youtube.com/watch?v=88MjXRtXJ4M&list=PLBw3qczTjq1T9v75Wf5Ia1NqeiKOmc-ej

The Exposure Triangle for Filmmaking, Video Production and Photography by Jim Costa Films:
youtube.com/watch?v=XEU2bz0ethI&list=PLBw3qczTjq1RtKD8a9tn23o3v9pC_EQV5

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Chapters:

00:00 Opening
01:26 What Light Transmission is
02:31 Light loss from reflections on air to glass optical surfaces
04:00 Scattering of light by defects in the glass
04:54 Light absorption from glass
06:20 Transmittance and Lens Filters
07:05 Neutral Density Filters
09:00 Learn more
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