Carl Zeiss BIOTAR 1.5/75mm legendary lens. Detailed review with samples

The most exhaustive review on youtube about legendary fast german lens. I'm a professional lens seller/repairer. For serviced vintage foto equipment please visit my eBay stores at: www.ebay.com/usr/kosbik84 www.ebay.com/usr/retrofotohouse Photo credits (at 0:51) Adolfoo Rozenfeld www.instagram.com/arozenfeld