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Pixco Pro Focusing Infinity Speed Booster Focal Reducer with Optical Glass Adapter Lens Turbo M42 Mount Lens to Micro Four Thirds M4/3
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 Bayonet back Sony NEX / Fuji X / Micro 4/3 Note

Price is $56.00
Price: $56.5