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Pixco Pro Focusing Infinity Focal Reducer Speed Booster with Optical Glass Lens Adapter for Canon FD FL to Sony E Mount A7 A7s A7R A7II A7RII A7SII with Optical Glass
Feature Increase exposure to 1 stop, and you can use a faster shutter speed to shoot an image. Works fine, closely combined with the bayonet smooth, like the original lens. Full manual operation, manual focus, manual iris adjustment can be achieved with body manual exposure, aperture priority exposure, combined infinite focus. Specification Max. f-stop pass through 1.4 Optical design (lenses / groups) 4/3 Focal length extension 0.7x Image diameter (mm) 28.5 Bayonet front 135 full frame lens

Price is $56.00

Price: $56.46