Carl Zeiss Biogon T* 2,8/21 ZM

評測報告

實拍照片

- Small
- Light
- Insanely sharp
- Fast
- Standard filter 46mm (cheaper)
- Focus is smooth and slick
- No distortion at all even wide open
- Metal construction
- Cheaper than Loxia 2.8/21 and three to four times cheaper than ELMARIT-M 21mm f/2.8 ASPH

- A bit longer than Loxia
- Thicker rotating filters may start to vignette
- Horrendous color shifts in the periphery caused by the rear nodal point of this lens being close to the sensor; however, it can be solved by Sony's Lens Compensation apps

This Zeiss 21mm f/2.8 is one of the best lenses available for M mount rangefinder cameras. I am using it on A7R with Voigtlander close-focus adapter and they are perfectly match.