Review on Canon EF 40mm f/2.8 STM Lens - Fixed Black (6310B002) for US Cameras by Shaun Jdi ᠌

Why did I write about aperture as a virtue, although the glass is not very bright: the open hole is quite working, and when making portraits you don’t have to close the aperture like on lighter lenses, so the bokeh turns out to be smooth, pleasant :) I decided to write a review because I noticed an unusual effect that I have not observed so far. The lens has a 7-bladed aperture, but in night photos it draws beautiful, symmetrical 14-ray stars. Does anyone have any ideas why this is happening?