10-24-2016, 04:14 PM
I'm not aware of such a test, but the internet is a big thing. You might research on dedicated macro-websites. As a rule of thumb, 2-3 f-stops from wide open is the optimum aperture of every lens. The higher the cameras MP, the sooner sharpness and/or resolutuon will decrease after a certain aperture.
Maybe a good read: https://www.lensrentals.com/blog/2016/01...wn-a-lens/
quick summary from that article: "The general rule that lenses get much sharper stopped down two stops from wide open is generally true."
Maybe a good read: https://www.lensrentals.com/blog/2016/01...wn-a-lens/
quick summary from that article: "The general rule that lenses get much sharper stopped down two stops from wide open is generally true."