Sony A7RII / A7RIII / A7III Thin Filter Mod ~~The ultimate way For Sony Cameras using Leica M lenses

Six years Long Term review + update FAQ and content revision massive pictures

Second and third generation Sony A7 series body disassembly assembly

中文版本 Chinese Ver…

Sony A7RII / A7RIII / A7III 換薄玻璃 Thin Filter 改善旁軸鏡邊位成象 — 2021年更新版

Preface

Why remove the low pass (OLPF) / change the Thin filter？

The innermost layer in blue-green is the IR Absorption filter.
The middle layer should be the moire removal filter
The red reflective outer layer is the UV/IR Cut filter
This time the original filter was replaced
All three pieces together are about 1.8mm thick

This problem may be a problem for many people who still have many RF wide-angle lenses leftover from the negative era and would like to see them revived on digital cameras. However, as side RF lenses not designed for digital optimisation, many RF lenses have a very short rear lens distance, very close to CMOS. The CMOS front filter is too thick, and the angle of incidence of the wide-angle lens is too large, resulting in a collapse of the image quality at the edge of the final image.

“In short, although the BSI technology has helped…