I like the Series E 36-72 for reverse macros because the zoom allows some focus as well as a range of magnifications. However, though they did not show up on the digital images, on the film cameras I used for the project (Pentax H3V, Minolta SRT 102, and one other I'm blanking on right now) the lens showed three astigmatisms on each shot with lighting coming in from the upper left (such as the film versions of the next photo.)
Astigmatisms reveal themselves as two lines that don't touch arranged at a 90-degree angle. So tracing the lines paths reveals an intersection with a 90-degree angle, but the intersection itself is never directly visible. When I digitize the film photos, I'll share some with astigmatism lines.
How much of a macro is this? That's a a 6-24 screw.
That's an unfinished land development as seen from an airplane. Lots of boulevards and cul-de-sacs.
Actually, these two are both a leaf. Here the lighting shows leaf mold where the vein slipts off.
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