EXCERPT page containing first few paragraphs. 2021-06-24 09:30:48
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Testing shows that the promise of adapting lenses is far more appealing than the reality. Lenses designed for Canon and Nikon do not interact well, which appears to be due to ray angle difficulties caused by the thickness of the sensor cover glass.
The ray angle problem seen with Leica M rangefinder lenses on Sony mirrorless applies anytime time there is a mismatch between the optical design and the actual camera on which the lens is mounted, namely any additional optical effects outside the lens itself.
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These systems are hugely expensive, so make the right choice for your own needs (full frame vs medium format).
- In-depth lens evaluations covering behaviors not likely to be found anywhere else, based on real-world field shooting.
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- Optical quality analysis of field curvature, focus shift, sharpness, flare, distortion, and performance in the field.