Another decent, impressively compact, lens from Pentax. This lens was owned by my girlfriend who use this lens in previous years on her Pentax K1000 (she uses a Nikon D800 now). So another favorite!
As most old Pentax lenses, it's good old quality with a solid metal build, and butter smooth focus and aperture. It has small profile, so combines well with the Sony a6000, even with an adapter. With the APS-C crop factor of 1.5 (resulting in 30mm), it still makes a decent landscape portrait lens. Good sharpness and color rendition, but as it is a slow lens, it is advised to use a tripod if you use a camera without stabilization such as the Sony a6000 (or shoot in bright light). The lens was more compact than its K predecessor.
The lens does seem to suffer from the "blue dot" caused by flare. I had a good bunch of pictures with this problem when photographing a sunset. So a hood might be advised.
Again proof that an old lens might still be worthwhile and compete with the latest lenses out there. I will definitely use this lens more often. Fully recommended and a pleasure to use!
SMC was patented and first applied in 1971, when Pentax was still making screw mount equipment. The multi-coated lens lines changed from Takumar and Super-Takumar to Super-Multi-Coated Takumar and later on to SMC Takumar. SMC Pentax was used for the newly introduced K-mount lenses. Pentax's SMC is still today considered as one of the best lens coatings on the market.
Focal Length: 20mm
Maximum Aperture: F4
Minimum Aperture: F22
Image Format: 35mm
Lens Mount: Pentax K
Optics: 8 elements, 8 groups
Blades: 5 blades
Focussing: Manual
Minimum Focus: 25cm
Maximum Magnification: 0.12x
Filter Size: 49mm
Weight: 150g
Length: 29.5mm
Production: 1977 until 1984
Serial Number: 6847539
Samples:
Sources:
Wikipedia - Pentax
Pentax Forums
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