I have received an interesting email message from Ron Pidot, a reader of my guide book for the Sony RX100 III camera, explaining how he used a novel approach to macro shooting with that model. Ron indicated that he did not mind sharing his technique with others, so I am posting the information here for use by anyone who would like to experiment with high-quality macro photography with this Sony model. It should work with other cameras in the RX100 family as well, though it has only been tested with the RX100 III. Here is what Ron explained:
“I thought you might be interested to know that I have been successful in shooting macro with the addition of a reversed Canon 50mm f/1.8 lens mounted on the 49mm adapter with a reversing ring instead of the usual close-up filters. I use manual focus with the aid of a focusing rail that adjusts front to back and left to right. There is no discernible vignetting when zooming to 140mm. with the “clear image” zoom setting. The images are processed with the Photoshop Elements 11 Photomerge option using layer masks to achieve focus stacking. My subjects (small screws, dead houseflies and tiny shells) have ranged in size from 4mm-10mm in length. I lighted the subject with the YongNuo 560 IV strobe you mentioned, using the pop-up flash to trigger the slave.
Insects are not abundant now but I managed to capture an earwig about 25mm long and it filled the LCD screen. Perhaps your readers (if they don’t already know) might like to add this capability to other options for macro photography.”