Pentax Normal smc P-D FA 50mm f/2.8 Macro Autofocus Lens

Model #21530

USA Version
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Weight 9.3 oz (264 g)
Filter thread 49 mm
Dimensions (dxl) Approx. 2.6 x 2.6" (6.60 x 6.60 cm)


Magnification 1x
Camera mount type Pentax K
Aperture Maximum: f/2.8
Minimum: f/32
Minimum focus distance 5.91" (15 cm)
Diaphragm blades 8
Format compatibility 35mm Film / Full-Frame Digital Sensor
Pentax Digital (APS-C)
Angle of view 47°
APS-C Picture Angle: 31.5°
Maximum reproduction ratio 1:1
Groups/elements 7/8
Focal length 50 mm
Comparable APS-C Focal Length: 75 mm


Image stabilization No
Autofocus Yes
Tripod collar No
Expert Reviews
6 July 2014

This lightweight 50mm macro lens has a bright maximum aperture of f/2.8, costs around £320 and offers life-sized magnification at its closest focus distance. On a Pentax DSLR this lens provides an angle of view roughly equivalent to a 75mm lens used on a 35mm camera.

User Reviews
B h photo.32817553
15 December 2015

I shoot a lot of product/high end crafts and this lens fills in nicely between the Pentax 35 mm and 100 mm macro lenses. Image quality is excellent, and the lens seems to be well built. It is even better than the excellent SMC A manual focus 50 mm macro it replaces.

  • +

    Strong Construction

Pentaxforums com.33034397
25 May 2015

This lens simply does what you expect it to do. Sharp wide open, close focussing distance, quick shift. It's a pity is has no WR (put it in the wet grass...)

  • +

    1:1, 2.8

  • -

    No WR, My copy does not focus at infinity...

7 February 2016

I bought this lens to use mainly on my Pentax ZX-5. Great performance and even with a maximum aperture of f 2.8 it is more compact than many manual focus f 3.5 lenses.

19 May 2013

I bought tis lens for closed-up work in low light conditions. I am really surprised about clear pictures one can get. Build quality of lens is great and will last for years to come.

Product Highlights
    Average Expert Score
    Average User Score
    In The Box
    • Pentax Normal smc P-D FA 50mm f/2.8 Macro Autofocus Lens
    • Front & Rear Lens Caps
    • PH-RBC Lens Hood
    • 1-Year Warranty
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