Best lenses for your Pentax K-50: Pentax lens overview

By Kevin Carter - Thursday, August 22, 2013

Lens Recommendations
Introduction | Pentax K-50 Best Prime | Pentax K-50 Best Zoom | Best Portrait lens | Best Standard zoom | Best Super-zoom

As we’ve seen with other makes the Sigma 35mm f/1.4 DG HSM A is the best performing lens of its type and of the 28 lenses models that we’ve analyzed on the Pentax K-50. As the equivalent to a 50 mm or thereabouts it’s a large and heavy lens but the image quality is terrific. Note that we’ve not yet assessed the Pentax 31mm f/1.8, 43mm f/1.9 or the 77mm f/1.8 Limited models.

 
Sigma 35mm F1.4 DG HSM A Pentax 899 24
Pentax smc DA Star 55mm F1.4 SDM 640 23
Pentax smc DA 50mm f1.8 249 21
Pentax smc D FA MACRO 100mm F2.8 WR 589 20
Pentax smc DA 70mm F2.4 Limited 545 20
Pentax smc DA 35mm F2.8 Macro Limited 700 20
Pentax smc FA 50mm F1.4 450 20
Pentax smc PENTAX D FA 50mm F2.8 Macro 444 19
Pentax smc DA 35mm F2.4 AL 220 19
Pentax smc DA 40mm F2.8 Limited 360 17
Pentax smc DA Star 200mm F2.8 ED (IF) SDM 1200 17
Pentax smc DA Star 300mm F4 ED (IF) SDM 1400 17
Pentax smc DA 40mm f2.8 XS 250 17
Pentax smc PENTAX DA 14mm F2.8 575 15
Pentax smc DA 15mm F4 ED AL Limited 510 15
Pentax smc DA 21mm F3.2 AL Limited 650 15
Sigma 35mm F1.4 DG HSM A Pentax 899 12
Pentax smc PENTAX D FA 50mm F2.8 Macro 444 10
Pentax smc DA 35mm F2.8 Macro Limited 700 10
Pentax smc FA 50mm F1.4 450 10
Pentax smc DA 50mm f1.8 249 10
Pentax smc DA 35mm F2.4 AL 220 9
Pentax smc DA Star 55mm F1.4 SDM 640 9
Pentax smc DA 21mm F3.2 AL Limited 650 9
Pentax smc DA 70mm F2.4 Limited 545 9
Pentax smc D FA MACRO 100mm F2.8 WR 589 8
Pentax smc DA 15mm F4 ED AL Limited 510 8
Pentax smc DA 40mm F2.8 Limited 360 8
Pentax smc DA Star 300mm F4 ED (IF) SDM 1400 8
Pentax smc DA 40mm f2.8 XS 250 8
Pentax smc PENTAX DA 14mm F2.8 575 7
Pentax smc DA Star 200mm F2.8 ED (IF) SDM 1200 7
 

If you’re looking for a similar angle of view of a 35mm on a APS-C camera, then you would need a 24mm, though Pentax currently offer only zooms that cover that focal length.

The firm’s Pentax smc DA 35mm f2.8 Macro Limited performs well but $700 it’s not the best value proposition in that focal length. The slightly faster 35mm f2.4 AL model is just $220 and scores 9P-Mpix in our Sharpness test, though bear in mind it lacks the sturdy metal construction and 1:1 life size reproduction capability of the macro model.

Wide-angle lenses don’t perform quite as well as the less demanding 50-85mm models, although the Pentax 21mm f/3.2 AL Limited scores quite well, with a DxOMark score of 15, and a Sharpness score of 9 P-Mpix.