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Model Overview
The Pentax SMC FA 645 300mm f/4 is a medium format, manual and autofocusing telephoto prime lens with a 35mm-equivalent focal length of 200mm. The surface is treated with Pentax's Super Multi Coating for sharp, high-contrast images. Extra-low Dispersion (ED) lens elements assure high image quality by minimising chromatic aberrations. The Inner Focus (IF) mechanism minimise s lens extension when focusing, maintaining good balance and assuring smoother focus ring operation and a closer minimum focus distance. The lens was developed using computer-assisted optical design technology for a high degree of precision.
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