photoSmart42
New member
Looking at the full-size photo I can actually see some color fringes for the pencil lead granules at the edge of the photos. Here's a detail of that:The reversed 20/1.7 is not only super sharp but one also devoid of color fringes.
Not sure if that's a result of something I did wrong, or the setup I'm using. Still, I'm very happy with the lens. Next time I'll try a lower aperture setting (f/5.6 maybe) and see if I can help the sensor better resolve the details. I realize I'll need to employ stacking to take care of the shallow dof.
Vivek - how do you calculate the approximate magnification you get with the reversed lens. Based on measuring the 'L' in the lens cap photo, and comparing it to the size of the sensor, I'm getting a 1:1 magnification (the size of the 'L' takes up about 5mm on the sensor, and it's about 4.8mm in reality).