The Praktiflex of 1938 was the first SLR to use a screw-mount lens (Pic: Danalor 01/Wikimedia Commons CC-BY-SA 3.0) In 1938, as war clouds started to gather in post-Depression Europe, designers at ...

Want some free rolls of Kosmo Foto film? Write posts for the blog. Find out more.

Want some free rolls of Kosmo Foto film? Write posts for the blog. Find out more.