You like taking photos with a 50mm lens, right? Let’s say you’re working with Micro Four Thirds camera options. In order to get a 50mm field of view, you need to slap a 25mm lens on your camera. But guess what? That 25mm lens will still act like a 25mm lens. It will be just as distorted and even though you’re still using the center area of the lens more or less you’ll still get all the problems that a lens like that faces.

The generally accepted portrait focal length is an 85mm or longer. Now again, I’m not talking about an 85mm equivalent field of view on Micro Four Thirds. I’m saying that I need at least an 85mm focal length.

Isn't it interesting that author of this crap makes most horrible photos (check, we have all the reviews) among all sites?

http://www.thephoblographer.com/2014/09/13/useful-photography-tip-111-need-least-85mm-lens-portraits/#.VBPayU0cSUk