Pentax K-S1 Lenses
The Pentax K-S1 utilizes the Pentax KAF2 mount & has a APS-C sized sensor. At this time, we have information on 17 lenses that will fit the K-S1.
The K-S1 has a crop factor of 1.5 so you should multiply the lens focal length with 1.5 to get it's full frame equivalence. The listings below are broken up by categories of lenses and you can simply click the 
image to visualize how the lens fits the K-S1.
We have also designed an Advanced Lens Search so you are able to uncover your perfect lens.
Macro Prime lenses for Pentax K-S1
There are 3 Macro Prime lenses in our records. Entire List is available here.
Venus Laowa 25mm F2.8 2.5-5X Ultra Macro25mmf/2.8400g
Samsung D-Xenon 100mm F2.8 macro100mmf/2.8 345g
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Venus Laowa 100mm F2.8 2X Ultra Macro APO100mmf/2.8638gTelephoto Prime lenses for Pentax K-S1
There are 2 Telephoto Prime lenses in our records. Entire List is available here.
Venus Laowa 105mm F2 Smooth Trans Focus105mmf/2745g
Pentax smc DA 300mm F4.0 ED IF SDM300mmf/4.0 1070g
Samsung Releases Faster Versions of EVO MicroSD CardsStandard Prime lenses for Pentax K-S1
There are 2 Standard Prime lenses in our records. Entire List is available here.
Irix 45mm F1.445mmf/1.4925g
Samsung D-Xenon 35mm F2 AL35mmf/2.0 195g
President Biden pushes bill mandating TikTok sale or banTelephoto Zoom lenses for Pentax K-S1
There are 4 Telephoto Zoom lenses in our records. Entire List is available here.
Pentax smc DA 60-250mm F4.0 ED IF SDM60-250mmf/4.0 1040g
Samsung D-Xenon 50-200 F4-5.6 ED50-200mmf/4.0-5.6 255g
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Pentax smc DA 50-135mm F2.8 ED IF SDM50-135mmf/2.8 685g
HD Pentax DA 55-300mm F4.0-5.8 ED WR55-300mmf/4.0-5.8 466gStandard Zoom lenses for Pentax K-S1
There are 3 Standard Zoom lenses in our records. Entire List is available here.
Samsung D-Xenon 16-45mm F416-45mmf/4.0 365g
Samsung D-Xenon 18-55mm F3.5-5.618-55mmf/3.5-5.6 225g
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Pentax smc DA 16-50mm F2.8 ED AL IF SDM16-50mmf/2.8 565gSuperZoom lenses for Pentax K-S1
There are 1 SuperZoom lenses in our records. Entire List is available here.
Samsung D-Xenon 18-250mm F3.5-6.318-250mmf/3.5-6.3 455gWideangle Zoom lenses for Pentax K-S1
There are 2 Wideangle Zoom lenses in our records. Entire List is available here.
Samsung D-Xenon 10-17mm F3.5-4.5 Fisheye10-17mmf/3.5-4.5 320g
Samsung D-Xenon 12-24mm F4 ED12-24mmf/4.0 430g
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