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Pentax smc A 50 mm f/2

Manufacturer Pentax
Model smc A 50 mm f/2
Lens style Normal
Focal length 50 mm
Maximum aperture f/2
Angle of view 47 o
Closest focusing distance 0.45 m
Maximum magnification
Minimum aperture 22
Number of diaphragm blades 0
Auto focus type MF
Lens Construction 5 elements / 5 groups
Filter diameter 49 mm
Macro No
Available mounts Pentax K
Dimensions 63.5 x 30.5 mm
Weight 155 g
Additional information
Average rating (5 owners reviews)
Build quality
Optical quality
Value for money


4.33 Good
Owners reviews (5)
  1. Zel_enlo
    Zel_enlo 3 November 2015, 23:03
    Build quality
    Optical quality
    Value for money


    IP 50.7.x.x
    Owner since: 1 year
    Price: 60
    User profile: Amateur

    Cons: aberration

    Pros: colours, contrast

    Summary: Probably my most favourite Pentax lens. I bought this little gem in a small second-hand camera store about a year and half ago for a price low that much that I haven't seen it that low anywhere else in my country since that. And I immediately felt in love with it. The outputs are simply stunning - great colours, great contrast and solid bokeh thanks to low aperture. If properly focused then the sharpness is unbeatable. Solidly built too. Useful for low-light and indoors (well, the focal length is sometimes limiting) and portraits at DSLR. My walking lens for film camera except for landscapes. I'm giving 7 to aberration just because it behaves weird. On some shots the aberration is virtually non-existent and some others shows heavy aberration even on higher apertures. And I mean the aberration differs between the shots taken in same time at the same place with unchanged camera settings. But still, it is quite easy to remove that (or most of it) in software and it doesn`t matter that much on film. Realtors Marketing | printing services

  2. Che
    Che 12 June 2014, 10:31
    Build quality
    Optical quality
    Value for money


    IP 192.114.x.x
    Owner since: 6 months
    Price: 50%
    User profile: Professional

    Cons: Not really sharp at 2.0

    Pros: Small, light,comfortable.

    Summary: When you need a small light lens to shoot at 3.5 - 4.0, this one is perfect. Very comfortable mechanics. Usable at 2.8, but not really on 2. The 50mm 1.7 is way sharper on 2.

  3. marc
    marc 20 May 2013, 19:05
    Build quality
    Optical quality
    Value for money


    IP 2.174.x.x
    Owner since: 3 years
    Price: 70$
    User profile: Amateur

    Cons: few CA's wide open

    Pros: nice colours, high contrast, very nice bokeh ,low price, excellent sharpness, if stopped down to f 5,6-8

    Summary: still better than 1;7/50, if you can get it, buy it. very sharp photos on Pentax K5 and K200

  4. joe
    joe 5 April 2013, 20:50
    Build quality
    Optical quality
    Value for money


    IP 2.171.x.x
    Owner since:
    Price: 40
    User profile: Amateur

    Cons: f 2.0 not so sharp

    Pros: f 5.6 to 8 very, very sharp. really impressed by quality

    Summary: nice fine lens

  5. zhjiln
    zhjiln 10 November 2010, 07:30
    Build quality
    Optical quality
    Value for money


    IP 67.181.x.x
    Owner since: 6 months
    Price: 25
    User profile: Amateur

    Cons: plastic feel. image quality is subpar (for prime)

    Pros: manual controls for aperture, F2.0 max aperture, distance scale, metal mount, really cheap price,

    Summary: this is the lens that stays on my pentax k1000 SLR . good overall lens.

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