e6filmuser wrote:
Here is a shot of a tiny mushroom ca 2mm across, shot with my reversed Scneider HM 40 at f16 (f32 effective),:
Harold
No offense, but there is nothing in focus and everything is severely diffracted.
Using 220mm of extention at f/16 wouldn't be something I personally would do as it's impossible to get a clean result.
I, too, have been practicing with taking single-image shots with reversed lenses, using a flash ... trying to achieve depth-of field @ f/16 ... but that's only at 2x, not 10x.
At 10x, I would only shoot wide-open.
Even at only 2x, athough I have got some sharp results with single image + flash @ f/16, I do not like the background rendering anywhere near as much as shooting wide-open (f/2.8-f/4), stacking, using natural light and a low shutter ... as my above images.
Much-much cleaner IMO. (Albeit, much-much more labor-intensive.)