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Canon Patent: 100-400mm F/5.5-7.1 Lens For APS-C Camera

Canon Patent: 100-400mm f/5.5-7.1 Lens For APS-C Camera

Here is an inetersting Canon patent for a 100-40mm lens. Canon Patent Application 2020-027156 (Japan) discusses optical formulas for a 100-400mm f/5.5-7.1 lens. The interesting fact is that this 100-400mm f/5.5-7.1…

Canon TS-E 50mm F/2.8L MACRO Review (Photography Blog)

Canon TS-E 50mm f/2.8L MACRO review (Photography Blog)

Canon TS-E 50mm f/2.8L Macro: At a glance: EF-Mount Lens/Full-Frame Format Aperture Range: f/2.8 to f/32 Two Ultra-Low Dispersion Elements One Aspherical Element Air Sphere and Subwavelength Coatings Maximum Tilt:…

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