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Item#: 9SIA13X1S84658

PENTAX 21910 smc PENTAX D FA MACRO 100mm f/2.8 WR Lens

  • Macro Lens
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The Pentax smc D FA 100mm F2.8 WR Macro is a telephoto lens with ultra-close focusing capabilities. With high-quality, weather-resistant construction, it delivers clear, high-contrast images from both telephoto and macro perspectives. It is ideal even in damp, inclement outdoor conditions for close-up photographers looking for full-size subject magnification and outstanding depth of field control for the smallest of subjects.

  • newegg Weather-Resistant The Pentax smc D FA Macro 100mm f/2.8 WR lens features a weather-resistant design, is ideal for outdoor shooting when used on popular Pentax weather resistant DSLR bodies.
  • newegg Rounded Aperture Blades The rounded aperture blades help improve bokeh at wide apertures for silky smooth background de-emphasis.
  • newegg Super Protect The front lens elements of the lenses use the special Pentax SP (Super Protect) coating to protect the front lens against dust, grease, finger marks or smearing, making the lenses exceptionally easy to clean.
  • newegg Quick Shift Focus System The Pentax "Quick Shift Focus System" allows the photographer to manually alter the focus point at will without having to take the camera out of the auto-focus mode.

Learn more about the PENTAX 21910


Macro Lens


FOCAL LENGTH: 100mm (equiv 153mm)
LENS CONSTRUCTION: 9 elements in 8 groups
ANGLE OF VIEW: 16° (DSLR), 24.5° (film SLR)
MAX DIAMETER x MIN LENGTH: 2.6 x 3.2" (65.0 x 80.5mm)
WEIGHT (W/O HOOD): 12 oz. (340g)


WR Weather-resistant design is ideal for use on popular PENTAX weather resistant DSLR bodies.
Macro lens features a full 1:1 image magnification ratio (1X, Life Size).
D FA series lens features a "full frame" design, compatible with PENTAX film and digital SLR cameras, but optically optimized for digital imaging.
Rounded aperture blades improve bokeh at wide apertures for silky smooth background de-emphasis.
PENTAX SP (Super Protect) coating on front lens element helps repel dust, water, and grease, while minimizing fingerprints.
PENTAX Quick-Shift focus system instantly switches to manual focus with a simple twist of the focus ring.
Body-controlled aperture improves weather resistant design, while maintaining quick access to full aperture control.
Durable aluminum housing protects lens optics

Quick Info

Customer Reviews of the PENTAX 21910

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  • James L.
  • 7/31/2010 4:17:28 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsBest of Class Macro, Portrait, WR-Pro

Pros: A sharp, very sharp, macro lens. Great for portraits. The lens is water and weather resistant; good for wildlife, and flower shots. No more worrying about rain, snow, or dew on flowers etc. Very tough, all metal design. Auto focus is fast, manual focus is very smooth. It is hard to explain my satisfaction with this lens; it has become my favorite, I always leave it on the camera.

Cons: No serious cons.
No visable F-stops on outside barrel, not a big deal.

Other Thoughts: I first bought the Pentax 100 Macro with No WR (Weather resistance). We had it for about a couple of years, it quickly became the family favorite. We have four semi-pro to pro photographers in the family. We or I shot more photos that I loved with this lens than in many previous years. Both macro and portrait. The lens seemed very light and a little delicate, although it performed great under large physical stress (3 out of 4 of my kids use Pentax, and it was passed around constantly).
When I read about the Pentax 100 Macro with WR, it got my attention. In the family we have a Pentax *ist, a K10, a K20 and a K-7 body all WR bodies; with many non-WR lenses to pass around. It seems time that we get a lens or two of the WR lenses. It’s been a great addition to the group, a highly favored lens.

1 out of 1 people found this review helpful. Did you? Yes No

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Item#: 9SIA13X1S84658
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