FF comparison: k15mm aspherical vs k15mm non-asp vs FA20mm
This is quick and dirty just to document the start of my evaluation of the K15mm 3.5 aspherical lens. I have a copy of this, the non-aspherical version and the FA20mm as a UWA modern reference.
Shots taken of a scene in the lounge room. All at iso 1600 and f3.5. LV manual focus. Cropped to show centre in bottom left third extending the the edge in the right third of the crop.
First observations.
1) non-aspherical noticeably softer and harder to remedy fringing
2) aspherical version more fringing than 20mm but easily remedied. Not as sharp as 20mm but that is likely due to sensor limitations 😀
First photo is non aspherical followed by aspherical version then the FA20mm
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