Forum: Photography


Subject: Macro level 2.0, just good enough to mess up. Experts chime in.

TomDart opened this issue on Jul 11, 2005 ยท 14 posts


TomDart posted Tue, 12 July 2005 at 8:45 PM

Dear TobinLam, I have also used a telephoto for close-up shots. Generally I can get a better image size for printing, etc., with the macro lens but the telephoto does have certain value here...not true macro I believe but close-up..and for me, often quite a clean image.

DOF changes little with f/ in close macro shots; oh it does change but at close focus the increase with small opening is not dramatic by any means. I calculated for one setting I used from f/5 to f/22 and the increase in DOF was in small parts of and inch, just a few millimeters. Critical focus on the prime "visual" aspect of the image means more to me now having messed up by not being critical of the very spot I wanted focus to be.

For an "entire bug" of large bug type, I have to back off to get enough DOF for the entire bug. That is what I am working on doing now and appreciating when composing the pic in the first place.

This picture was taken a bit further off than the failed tries, using 50mm macro lens(75mm in my digital). Still, I had trouble with shutter speed and steadiness with tripodless shots in prevaling light..it was stil pretty bright but not for this!(00psies! the date is 2005, July 10 I think, not 2004 as the text on image says.)

Message edited on: 07/12/2005 20:46