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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 Pentax89924
Pentax smc DA Star 55mm F1.4 SDM64023
Pentax smc DA 50mm f1.824921
Pentax smc D FA MACRO 100mm F2.8 WR58920
Pentax smc DA 70mm F2.4 Limited54520
Pentax smc DA 35mm F2.8 Macro Limited70020
Pentax smc FA 50mm F1.445020
Pentax smc PENTAX D FA 50mm F2.8 Macro44419
Pentax smc DA 35mm F2.4 AL22019
Pentax smc DA 40mm F2.8 Limited36017
Pentax smc DA Star 200mm F2.8 ED (IF) SDM120017
Pentax smc DA Star 300mm F4 ED (IF) SDM140017
Pentax smc DA 40mm f2.8 XS25017
Pentax smc PENTAX DA 14mm F2.857515
Pentax smc DA 15mm F4 ED AL Limited51015
Pentax smc DA 21mm F3.2 AL Limited65015
Sigma 35mm F1.4 DG HSM A Pentax89912
Pentax smc PENTAX D FA 50mm F2.8 Macro44410
Pentax smc DA 35mm F2.8 Macro Limited70010
Pentax smc FA 50mm F1.445010
Pentax smc DA 50mm f1.824910
Pentax smc DA 35mm F2.4 AL2209
Pentax smc DA Star 55mm F1.4 SDM6409
Pentax smc DA 21mm F3.2 AL Limited6509
Pentax smc DA 70mm F2.4 Limited5459
Pentax smc D FA MACRO 100mm F2.8 WR5898
Pentax smc DA 15mm F4 ED AL Limited5108
Pentax smc DA 40mm F2.8 Limited3608
Pentax smc DA Star 300mm F4 ED (IF) SDM14008
Pentax smc DA 40mm f2.8 XS2508
Pentax smc PENTAX DA 14mm F2.85757
Pentax smc DA Star 200mm F2.8 ED (IF) SDM12007
 

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.