Nikon new Lens Patents: 600mm f/4 II and 400mm f/2.8 II

Nikkor 600mm f/4 lens patent
Nikkor 600mm f/4 lens patent

Nikon filed new lens patents for super telephoto prime lenses. These are 800mm f/5.6 (Already released), 600mm f/4 II and 400mm f/2.8 II.

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Canon new lens patent: EF 300-600mm f/5.6 IS w/ 1.4x TC

Canon EF 200-400mm f/4L IS USM Extender 1.4x
Canon EF 200-400mm f/4L IS USM Extender 1.4x

Canon filed several new telephoto patents today: 200-400mm f/4, 600mm f/4, 300-600mm f/5.6 with a built in TC (280-560mm f/5.6、840mm f/5.6、420-840mm f/8).

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Nikon 100mm F2.5 Medium Format Lens Patent

Nikon 100mm f 2.5 medium format lens

A new Nikon 100mm F2.5 Medium Format lens patent appears on egami. Last months, there were rumors on Canon planing for medium format cameras, seem Nikon will also develop medium format cameras in near future.

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Canon Patent: EF 50mm f/1.8 IS

Canon EF 50mm f 1.8 IS USM lens

A new patent from Canon now listed on Egami. This new lens patent is Canon EF 50mm f/1.8 IS USM lens. This lens could be the replacement of current 50mm f/1.4 lens. We had heard replacement of 50mm f/1.4 since last year. CR also said a new 50mm f/1.2L lens is in testing.

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Canon 45mm f/2.8, 40mm f/2.8, 35mm f/2.8, 28mm f/2.8 Pancake Lens Patents

40mm f2.8 pancake lens
EF 40mm f/2.8 STM Pancake Lens

Here are some new pancake lens patents from Canon. A total of 4 pancake lenses to be announced. They are Canon EF 45mm f/2.8Canon EF 40mm f/2.8Canon EF 35mm f/2.8Canon EF 28mm f/2.8.

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