Quote Originally Posted by chriscrawfordphoto View Post
When the opening and closing shutter curtains move over the image area, they must move at exactly the same speed, or you'll get the uneven exposure you see. Its an easy adjustment for a technician to make, but not something you can do yourself because it requires a shutter speed tester capable of reading both curtain speeds separately from the overall shutter speed.
Dear Friend,
Is there any guide or video to do test shutter curtains myself?