half-the-weight
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Sapphire Coated Optical Grade Acrylic Prime Lenses at T1.0 to T2.0
High-end Fluorite Glass typically used in premium-quality prime and zoom lenses have a Refractive Index of 1.434 while pure optical grade acrylic is 1.495. A lens coating such as Sapphire has a refractive index of 1.76 (i.e. refractive index = how much does light "bend" away from a given...- HarryFilm
- Thread
- acrylic half-the-weight no aberrations one-third-the-price premium quality prime lenses sapphire t1.0 to t2.0 zoom lenses
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- Forum: Third Party Manufacturers