NOTE: I’ve had a few comments / e-mails asking if this is how I AF fine tune my lenses. I wanted to mention before you start the article that this testing technique is NOT for that purpose. This is simply for sharpness testing between optics, not for AF fine tuning. For AF fine tuning, I use LensAlign. On to the article 🙂 Lately, I’ve … Continue reading Lens Sharpness Testing