Bazsites.com Lenses

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Chang Chou Optic Technology - Manufacuturer of polycarbonate lenses since 1999. Offers brief company overview, lenses and products offered, including ophthalmic lenses, minu, plus, insert mold, aspherical lenses, toric and polycarbonate lenses.
Woehlk - Manufacturer of the classic hard contact lens from Plexiglas, rigid gas permeable and high water content soft lenses, monthly replacement lenses, colored lenses and special lenses.
Gravitational Lensing - A popular site with interactive demonstrations of gravitational lensing. The background material is at a graduate level
Sola - Eyeglass lenses, including Percepta progressive lenses for bifocal prescriptions and Spectralite high index lenses.
Rodenstock - Eyeglass lenses and frames, including Multigressiv progressive lenses.
Kinko Optical Co., Ltd. - Manufacturer of camera lenses, digital camera lenses, bar code and scanner lenses.
D Sujanani - Wholesale prescription lenses from china, priced for bulk purchasers.
Coastal Optical - Designs and builds custom precision optical assemblies like projection lenses, camera lenses and telescope assemblies. Standard products include CoastalOpt(tm) Fisheye lenses.
Louvers and Lenses - A supplier of lenses, louvers, reflectors, globes, industrial dimming products and theatrical dimming systems with information on the company, products and contacts.
2020 Contact Lenses - Offers brand name replacement contact lenses.

Progressive lenses - Progressive lenses, also called progressive addition lenses (PAL), progressive power lenses, graduated lenses and varifocal lenses, are corrective lenses used in eyeglasses to correct presbyopia and other disorders of accommodation. They are characterised by a gradient of increasing lens power, added to the wearers correction for the other refraction errors.
Canon EF Portrait Lenses - Canon makes several lenses for the EF lens mount meant for portrait photography. These lenses are mild telephoto lenses meant to compress facial features.
Kiron Lenses - Kiron Lenses were photographic lenses sold by the Kiron Corporation, formally based in Carson, California, USA.
Lenses for SLR and DSLR cameras - This article is about photographic lenses for single-lens reflex film cameras (SLRs) and digital single-lens reflex cameras (DSLRs). Furthermore, the emphasis is on modern lenses for 35 mm film SLRs and for DSLRs with sensor sizes less than or equal to 35 mm ("full-frame").
Canon L lens - Top-of-the-line Canon EF (and previously FD-mount) lenses are designated as L-lenses, or "Luxury" lenses. L-lenses have superior optical performance and are typically built with a solid construction to withstand constant use and harsh conditions.