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
Pentax smc PENTAX DA 16-45mm F4 ED AL 335 17
Pentax smc PENTAX DA Star 16-50mm F2.8 ED AL (IF) SDM 736 16
Pentax smc DA 12-24mm F4.0 ED AL (IF) 700 16
Pentax smc PENTAX DA 18-55mm F3.5-5.6 AL II 125 15
Pentax smc PENTAX DA 55-300mm F4-5.8 ED 475 15
Pentax smc Pentax DA 18-250mm F3.5-6.3 ED AL [IF]   499 13
Tamron SP 10-24MM F/3.5-4.5 Di II LD Aspherical IF Pentax 499 13
Sigma 18-200mm F3.5-6.3 II DC OS HSM Pentax 349 13
Tamron SP AF 28-75mm F/2.8 XR Di LD Aspherical [IF] Pentax 499 13
Pentax smc DA 18-270mm F3.5-6.3 ED SDM 749 13
Pentax smc PENTAX DA 50-200mm F4-5.6 ED 261 12
Tamron AF18-200mm F/3.5-6.3 XR Di-II LD ASPHERICAL (IF) MACRO Pentax 645 9
 

The price of $650 is fast approaching that of $736 Pentax smc PENTAX DA Star 16-50mm f2.8 ED AL (IF) SDM that’s not only more versatile, and slightly faster but performs similarly (scoring an average of 9P-Mpix and a DxOMark score of 16.

If price is an issue then consider the Pentax smc PENTAX DA 16-45mm f4 ED AL. It’s priced at $335, and scores 8P-Mpix and an overall DxOMark score of 17 points.

Both those models are the best performing zooms. Best value is the 18-55mm f/3.5-5.6 AL II starter lens but that’s often bundled with the camera.

 
Pentax smc PENTAX DA Star 16-50mm F2.8 ED AL (IF) SDM 736 9
Pentax smc PENTAX DA 16-45mm F4 ED AL 335 8
Pentax smc DA 12-24mm F4.0 ED AL (IF) 700 8
Pentax smc Pentax DA 18-250mm F3.5-6.3 ED AL [IF]   499 7
Pentax smc PENTAX DA 55-300mm F4-5.8 ED 475 7
Pentax smc PENTAX DA 18-55mm F3.5-5.6 AL II 125 6
Tamron SP 10-24MM F/3.5-4.5 Di II LD Aspherical IF Pentax 499 6
Sigma 18-200mm F3.5-6.3 II DC OS HSM Pentax 349 6
Pentax smc DA 18-270mm F3.5-6.3 ED SDM 749 6
Pentax smc PENTAX DA 50-200mm F4-5.6 ED 261 5
Tamron SP AF 28-75mm F/2.8 XR Di LD Aspherical [IF] Pentax 499 5
Tamron AF18-200mm F/3.5-6.3 XR Di-II LD ASPHERICAL (IF) MACRO Pentax 645 4

If sharpness is the only criteria on which to make a judgment then the Pentax smc PENTAX DA Star 16-50mm f2.8 ED AL (IF) SDM comes out top of those analyzed.  However, at less than half the price the similar 16-45mm (24-75mm equivalent) is the better performer overall (with a DxOMark score of 17 points, however it’s a stop slower at maximum aperture.