Make M42 mount lenses can be used on for Canon EOS EF camera body.
With Newest 3rd generation AF-Confirm Chip.
EXIF is fixed 50mm f1.4.
Enable camera viewfinder FOR focus confirmation light and sound.
Support AV (Aperture Priority) and Manual Mode.
Exposure aperture data can be recorded in EXIF.
Give you confirmation signal once you FOR focus objective accurately.
It is a aperture pin stop down flange version.
It is possible to use Macro rings and other accessories.
It can help you improve success shoot ratio.
Allow to FOR focus for infinity in manually.
Although the lens will fit physically, automatic diaphragm, auto- for focusing, or any other functions will not operate correctly while using this adapter.
In this case since the lens does not have the ability to have its aperture controlled by the camera body. You can shoot with manual mode or aperture priority mode.
For this "AF Confirm" adapter, it is didn't mean you can use auto for focus, it only have an indication (bee sound) when you manual for focus actually.
1 x AF Confirm M42 Lens to for Canon Eos Adapter