Parfocal vs Varifocal Zoom: What is the Difference and Why Does it Matter?
You’ve heard the terms “varifocal” and “parfocal” to describe lenses, but do you know what these terms mean? Or why they matter? If you don’t, this informative conversation between Vistek video producer Dale Sood and product manager Brian Young is the perfect place to start. petapixel.com »