Another Internet Canard: ƒ/1.4 Lenses

Oh, dear. I’m about to offend someone again. Someone, somewhere has said something similar to what I’m about to quote, and that person will think I’m directing my disapprobation smack-dab at them, personally, and they will take great umbrage at…

via The Online Photographer: http://theonlinephotographer.typepad.com/the_online_photographer/2011/04/internet-canard.html?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed:+typepad/ZSjz

All fast camera lenses are worse wide open than they are stopped down. All. As in, every one. Unless you’ve discovered a diffraction-limited fast camera lens that has somehow escaped the notice of optical science.