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Tag:Equipment

Experience with Sony Zeiss Distagon T* FE 35mm F1.4 ZA in Astrophotography and Infrared

IsaacGP.com February 12, 2020
News / Records / Technique

Sony Zeiss 35mm 1.4 Distagon It is not sharp and clear from corner to corner. Infrared photography, not recommended.

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Very Bad Lens for Astrophotography – Canon EF 50mm f/1.4 USM

IsaacGP.com May 26, 2017
Astronomy / Records

I do not usually make reviews of photographic material, but recently a friend told me excited that he had bought a Canon EF 50mm f / 1.4 USM to take astronomy photographs and after doing some tests he realized that he had been wrong. The most striking when it begins to be used, especially at f / 1.4, is the coma: This defect causes this objective to be inappropriate for astrophotography at apertures close to f / 1.4, since the […]

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