@gamingonlinux I can finally figure out how to get out of hell then!

@mattblaze I've been shooting for many years including on a semi-professional level for the past decade and I never knew that's what telephoto meant!I learned the hard way that even moderately long focal lengths are enough to produce very significant atmospheric distortion. I've shot parades regularly. Crowds are a constant problem for parade photographers so I learned to bring a step ladder and a long lens to get around the people.This worked great until I had to shoot a parade someplace with humidity. All of my distance shots lacked sharpness. I thought I had a camera problem. It wasn't until I had to do the same shoot the following year that I realized the air was imperceptibly hazy to the naked eye.