SMC Pentax-M 20mm f/4
Brand & mount
- Manual focus
- Brand: Pentax
- Mount type: Full frame
- Type: prime
SMC Pentax-M 20mm f/4 is a manual focus prime lens for SLR cameras.
The optical scheme comprises 8 elements in 8 groups. Due to the fact that lens has 5-bladed aperture, the subjects located outside the depth of field may be shown which the nuts-effect in the bokeh.
This lens has a size of 30 mm. It is very compact and pocket-size. The weight of this lens is very small (150 grams) and is almost invisible against the background of the weight of the camera. The lens is suitable for shooting near objects. Mounting the filter has a common size. Is useful for landscape, architecture, interior and genre photography. SMC Pentax-M 20mm f/4 went on sale in 1977. Currently out of production (1984) and is no longer available.
May be available from: Amazon.com,
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