Ist das hier das Problem??
salut
Herbert
aus
http://photonotes.org/articles/eos-manual-lenses/#adapter
salut
Herbert
aus
http://photonotes.org/articles/eos-manual-lenses/#adapter
Camera locks up with the manual focus lens installed.
Canon EOS cameras contain tiny switches in the lens mount which are used to sense the presence of a lens with autofocus electronics. If a manual focus lens trips this switch - perhaps through a badly designed lens mount adapter - then the camera will lock up because the switch is telling it to expect an electronic lens, but there are no electronics to be seen.
In such a case you may need to unlock the lens and rotate it very slightly so that the switch doesn’t engage. If you do this don’t turn it too far - or don’t let it get bumped - because the lens might fall off!
A similar problem occurs if you install a teleconverter (extender) or extension tube between your manual focus lens and your camera. The camera will get confused and lock up because the autofocus lens switch is tripped but there aren’t any lens computers around. The workaround is the same as the above - unlock and rotate the lens and TC.