Optics manufacturer TTArtisan has announced a fully-manual 25mm F2 lens for APS-C mirrorless camera mounts that costs just $55. The lens is constructed of seven elements in five groups and offers a roughly 38mm full-frame equivalent focal length (except on Micro Four Thirds where it's a 50mm equiv). It uses a seven-blade aperture diaphragm, has a minimum focusing distance of 25cm (9.8"), uses a 43mm front filter thread and has an aperture range of F2 through F16. Measurements come in at 59mm (2....
Optics manufacturer TTArtisan has announced a fully-manual 25mm F2 lens for APS-C mirrorless camera mounts that costs just $55. The lens is constructed of seven elements in five groups and offers a roughly 38mm full-frame equivalent focal length (except on Micro Four Thirds where it's a 50mm equiv). It uses a seven-blade aperture diaphragm, has a minimum focusing distance of 25cm (9.8"), uses a 43mm front filter thread and has an aperture range of F2 through F16. Measurements come in at 59mm (2....
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