Installing M42-to-EOS adapter on full frame camera.
Using adapted lenses on full frame Canon camera requires both suitable adapter and suitable lens. Here a high quality M42 thread mount adapter with focus confirmation chip was used. Not all adapted lenses will fit inside the mirror box. If the back of the lens is too long, camera mirror will collide with the lens shutting down camera and preventing photography.
Some adapted lenses can be made to work with full frame camera when the last lens element holder is machined and modified.
The image was taken with Canon 350D camera.
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