Best 50mm lenses for Pentax K: Top Picks

Our catalogue lists 46 50mm lenses for Pentax K. The 'nifty fifty' range: fixed lenses between 45mm and 58mm, close to the natural perspective of the eye.

How these were picked. Lenses are ranked using only data in our catalogue: those with editorial notes first, then those with a photo and a buying link, newer release years where known, and faster maximum apertures as a tie-breaker. This is a data-based shortlist, not a hands-on test ranking.

1. 

   1.Pentax smc FA 50mm F1.4

   50mm · f/1.4 · Pentax K

   A compact 50mm f/1.4 for Pentax K-mount that covers full frame. It weighs about 220 g and takes 49mm filters.

   Specs Buy on Amazon Compare with SMC Pentax-D FA 50mm f/2.8 Macro
2. 

   2.Pentax SMC Pentax-D FA 50mm f/2.8 Macro

   50mm · f/2.8 · Pentax K

   A compact full-frame 50mm macro for Pentax, weighing about 265 g and reaching 1:1. It has a 49mm filter thread.

   Specs Compare with HD Pentax-D FA* 50mm f/1.4 SDM AW
3. 

   3.Pentax HD Pentax-D FA* 50mm f/1.4 SDM AW

   50mm · f/1.4 · Pentax K

   A premium full-frame 50mm f/1.4 from Pentax's Star series. It has SDM autofocus, an all-weather build and weighs about 910 g.

   Specs Compare with smc Pentax-DA 50mm f/1.8
4. 4.Pentax smc Pentax-DA 50mm f/1.8

   50mm · f/1.8 · Pentax K

   A light 50mm prime for Pentax APS-C bodies, weighing about 122 g. It takes 52mm filters and focuses as close as 0.45 m.

   Specs Compare with smc Pentax-FA 50mm f/1.4
5. 

   5.Pentax smc Pentax-FA 50mm f/1.4

   50mm · f/1.4 · Pentax K

   The Pentax smc Pentax-FA 50mm f/1.4 is a fast standard prime lens covering 50mm at f/1.4 for Pentax K mount cameras. The natural field of view suits street, documentary and everyday photography.

   Specs Buy on Amazon Compare with smc Pentax-A 50mm f/1.4
6. 

   6.Pentax smc Pentax-A 50mm f/1.4

   50mm · f/1.4 · Pentax K

   Pentax smc Pentax-A 50mm f/1.4: a fast standard prime lens with a 50mm focal length and a maximum aperture of f/1.4, made for Pentax K mount cameras. The natural field of view suits street, documentary and everyday ph...

   Specs Compare with smc Pentax-K 50mm f/1.4
7. 

   7.Pentax smc Pentax-K 50mm f/1.4

   50mm · f/1.4 · Pentax K

   A 50mm f/1.4 fast standard prime lens, the Pentax smc Pentax-K 50mm f/1.4 is designed for Pentax K mount bodies. The natural field of view suits street, documentary and everyday photography.

   Specs Compare with smc Pentax-M 50mm f/1.4
8. 

   8.Pentax smc Pentax-M 50mm f/1.4

   50mm · f/1.4 · Pentax K

   This 50mm f/1.4 fast standard prime lens from Pentax fits Pentax K mount cameras. The natural field of view suits street, documentary and everyday photography.

   Specs Compare with 50mm f/1.4 DG HSM Art
9. 

   9.Sigma 50mm f/1.4 DG HSM Art

   50mm · f/1.4 · Pentax K

   This 50mm f/1.4 full-frame fast standard prime lens from Sigma fits Pentax K mount cameras, from the Sigma Art line with Hyper Sonic Motor autofocus. A wide-aperture standard prime from Sigma's Art line.

   Specs Compare with 50mm f/1.4 Auto
10. 

    10.Vivitar 50mm f/1.4 Auto

    50mm · f/1.4 · Pentax K

    This 50mm f/1.4 fast standard prime lens from Vivitar fits Pentax K mount cameras. The natural field of view suits street, documentary and everyday photography.

    Specs Compare with smc Pentax-A 50mm f/1.7
11. 

    11.Pentax smc Pentax-A 50mm f/1.7

    50mm · f/1.7 · Pentax K

    The Pentax smc Pentax-A 50mm f/1.7 is a fast standard prime lens covering 50mm at f/1.7 for Pentax K mount cameras. The natural field of view suits street, documentary and everyday photography.

    Specs Compare with smc Pentax-F 50mm f/1.7
12. 

    12.Pentax smc Pentax-F 50mm f/1.7

    50mm · f/1.7 · Pentax K

    A 50mm f/1.7 fast standard prime lens, the Pentax smc Pentax-F 50mm f/1.7 is designed for Pentax K mount bodies. The natural field of view suits street, documentary and everyday photography.

    Specs