Pentax Prime Coverage on K-1

Started 10 months ago | Discussions thread
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Tyler Monson Senior Member • Posts: 1,462
Pentax Prime Coverage on K-1

Camera (Pentax K-1) on tripod. Focus set to manual/infinity and aperture at f/8. Where possible, lens hoods removed or retracted.

Lenses tested:

  • SMC Pentax-DA 15mm F4 ED AL Limited
  • SMC Pentax-DA 21mm F3.2 Limited
  • SMC Pentax-DA 35mm F2.8 Limited Macro
  • SMC Pentax-FA 35mm F2 AL
  • SMC Pentax-DA 40mmF2.8 Limited
  • SMC Pentax-DA 70mm F2.4 Limited

[The Limited lenses are the older—green ring—models, not the current—red ring—ones.]

Exposures made with frame size set to:

  • Full-frame
  • Square (1:1)
  • APS-C

Personal Conclusions:

With the exception of the 35mm f/2, all of these lenses were designed and sold for the APS-C format and performed well for me (on my K10, K20, K-5, and K-3). That the 40 and 70 do well on full-frame is a lovely bonus, as is the option on the K-1 of the square format, which allows me to use the wider lenses. I am a 'happy camper'.


The Profligatographer
Here Now, Gone Before Long

Pentax K-1 Pentax K-5
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