Thanks to you both for your fast and helpfull replies.
Originally posted by ftpaddict The lowest value (70 in this case) is best in these cases. If you used 135 for SR, and 70mm on the lens, it would cause the camera to over-compensate, blurring your images even in broad daylight.
I'm speaking from experience.
So as I understand it will be usable for me to enter the focal value generally which I use, it is ok. And to close SR is always the solution that is ok too. Let me ask, if I enter a high value (lets say 200 i.e.) so it will over compansate on below values. Is it vice versa? If I enter 70, will it over compansate on 200 too? Or will the SR effect weaker than it is on 70mm?