M42 Lens to Canon EOS AF-confirm adapter

M42 Lens to Canon EOS AF-confirm adapter
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Worldwide Express Delivery in 8-20 business days

Price $19.00

This adapter allows the use of M42 (Pentax Screw Mount) lenses on any Canon EOS camera body. Such lenses are made by Praktica and Zenit and are also easily found on the used lens market from such manufacturers as Pentax. Although all M42 lenses are manual focus, this adapter retains the operation of the camera's electronic "in-focus" indicators - a green circle appearing in the viewfinder and an audible "beep" - to confirm best focus. If the shutter is 1/2 depressed and the lens manually focused, the camera will indicate when best focus has been achieved. Simpler M42 adapters lacking electronic contacts do not allow the camera to provide any electronic focus confirmation and focus can only be judged by observing the image on the viewfinder screen. This can be quite difficult, especially with slow and/or wideangle lenses.

Since M42 mount lenses have a manually operated aperture, camera modes which control exposure by automatically adjusting aperture are not available. However full autoexposure operation is available in Aperture Priority mode and the camera can also be operated in manual exposure mode using in-camera metering. In manual mode the shutter speed is set on the camera, while the aperture is set on the lens. In Aperture priority mode the aperture is set on the lens and the camera will automatically set the shutter speed to provide the correct exposure. M42 lenses mounted on EOS bodies via this adapter do not interfere with camera operation and allow the use of mirror lockup.

Written by Bob Atkins "How to use" by Bob Atkins


EOS 300D / Digital Rebel / Kiss Digital EOS D30 EOS 60D
EOS 350D / Digital Rebel XT / Kiss Digital N EOS D60 EOS-5D Mark II
EOS 400D / Digital Rebel XTi / Kiss Digital X EOS 5D EOS-1D C
EOS 450D / Digital Rebel XSi / Kiss Digital X2 EOS 6D EOS-1D X
EOS 500D / Digital Rebel T1i / Kiss Digital X3 EOS 7D EOS-1D
EOS 550D / Digital Rebel T2i / Kiss Digital X4 EOS 10D EOS-1Ds
EOS 600D / Digital Rebel T3i / Kiss Digital X5 EOS 20D EOS-1D Mark II
EOS 1100D / Kiss Digital X50 EOS 20Da EOS-1Ds Mark II
EOS 1000D / Digital / Kiss Digital EOS 30D EOS-1D Mark II N
EOS 50D EOS-1Ds Mark III
EOS-1D Mark IV

NOT compatible with EOS 30, 30V, 33V, 650D, 5D MkIII

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FREE: $0.00

Worldwide Express Delivery in 8-20 business days

Price $19.00