david_rurngchai Posted July 28, 1997 Share Posted July 28, 1997 I HAVE A MANUAL FOCUS CAMERA WITH SPILT IMAGE FOCUSSING SCREEN, WHEN USES WITH TELEPHOTO LEN 300/F4 + X2 TELECONVERTOR = F8. THE RANGE FINDER ALWAYS BLACK OUT AND VERY DIFFICULT TO FOCUS THE SUBJECT (MOSTLY BIRDS). HOW DO YOU SOLVE THIS PROBLEM? Link to comment Share on other sites More sharing options...
dr._hans_h._siegrist___ Posted July 28, 1997 Share Posted July 28, 1997 If you have a body with interchangeable focusing screens try to get a plain matte (if possible laser) screen without focusing aids. With a 300 mm lens the depth of field is shallow enough to enable you to focus precisely without them. If you do not have such a camera try to focus on the area surrounding the focusing aids and then recompose your picture. Link to comment Share on other sites More sharing options...
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