Mitakon ZhongYi lens design adoption by other photo brands

Started 3 months ago | Discussions thread
Aoi Usagi Senior Member • Posts: 2,306
Re: Mitakon ZhongYi lens design adoption by other photo brands
7

This is not surprising. Most of those fast chinese lenses are old double gauss (Biotar/Planar) formula lenses that has been used for probably a century, but with a built in speedbooster/focal reducer at the back end. That's how they get those fast speeds and poor wide open image quality.

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Formally Evogt500

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