I'm quite pleased that I have been able to resurrect the use of premium Kodak Ektar lenses made for the 35mm Kodak Ektra rangefinder camera, introduced in the USA in the early 1940s. Due to the unreliable shutter of the Ektra, the lenses were languishing in my collection, collecting dust and unused and unloved. With the arrival of the Sony mirror less camera body with interchangeable lens capability, I was able to have custom lens adapters made for use on the Sony. It required imagination on my part to cope with the complicated screw-bayonet- like Ektra lens mount and the need for multi starting on the screw component. Nevertheless, useable adapters were made and now I have the pleasure of putting 35mm, 50mm, 90mm, and 135mm Ektar lenses on my Sony body. Bear in mind that these American-made lenses were among the best in the world when they were introduced, being internally coated (the first in the world). The digital images have been quite good.