Originally posted by WinterboJ
Not sure what happenned there - this is the first image I thought would appear with my long message above.
Thank you for showing the effect of the registration distance adaptor.
Even with the quality possible on the forum and with no enlarging of the image on the screeen there is a noticeable (easily noticeable) degradation only a modest distance out from the centre. How glad I am that I can use the Taks with a body which is backward compatible by having the correct registration distance and mechanically fits an adaptor.
This is one of the major design philosophy points I believe Pentax has in its favour - deliberate backwards compatibiity so even the ancient kit can be used with the new kit - and even my 60s lenses have shake reduction, a feature that their designers thought meant wearing a large gyroscope!