- 6-Bit Coding
- 11-Blade Diaphragm
- Optical and Mechanical Excellence
This lens has been updated with the "6-bit" coding, which allows the digital M camera to read this information optically and to identify which lens is being used. The camera can then (optionally) apply a "final stage" software based vignetting correction (for RAW images the lens used is simply recorded, no change is made).
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