Pentax HD PENTAX-D FA 28-105mm f/3.5-5.6 ED DC WR Lens

Model #21297

USA Version
Pentax 21297 1
Pentax 21297 1
Pentax 21297 2
Pentax 21297 3
Pentax 21297 4
Pentax 21297 5
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Weight 15.5 oz (439 g)
Dimensions (DxL) Approx. 2.87 x 3.41" (7.29 x 8.66 cm)
Filter Thread Front: 62 mm


Format Compatibility 35mm Film / Full-Frame Digital Sensor
Angle of View 15.5° - 53°APS-C Picture Angle: 23.5° - 75°
Minimum Focus Distance 1.64' (50 cm)
Magnification 0.22x
Maximum Reproduction Ratio 1:4.5
Focal Length 28 - 105mm Comparable 35mm Equivalent on APS-C Format Focal Length: 43 - 161 mm
Diaphragm Blades 9, Rounded
Elements/Groups 15/11
Aperture Maximum: f/3.5 - 5.6Minimum: f/22 - 32
Camera Mount Type Pentax K


Tripod Collar No
Autofocus Yes
Image Stabilization No
User Reviews
12 April 2018

This is a very good lens for traveling. The zoom range allows for both wide-angle panoramas and close-ups on the go. At f8 - f11 apertures the sharpness is more than decent so it's basically a day lens, although on a tripod by night or when using a ND filter it also delivers.

B h photo.34921152
10 January 2019

silent and efficient

B h photo.34921152
27 December 2018

I bought this to use as a general purpose , walk around lens. It fits the bill perfectly. Great image as well as build quality. I was considering the 24 ~ 70. I am extremely happy with my choice . I use this lens with a Pentax K1-II.

B h photo.34921152
21 March 2018

Light, sharp, useful zoom range, little distortion or CA, and comparatively inexpensive. Little to criticize unless you need more speed, if so you will pay a price in cost and weight.

19 March 2018

Only had limited use up to now, but very pleased so far. Purchased mainly as a lighter alternative to the monster 24-70 zoom for use with the Pentax K1, but haven't had much occasion to use the lens with that camera yet, so can't really comment on its performance full frame, especially edge...

  • +

    Consistent Output, Durable, Easily Interchangeable, Lightweight, Quick Focus, Sharp Focus

13 March 2018

This is a very good walk around all day lens. I use it constantly and the quality is good.

14 February 2018

I bought this lens with the K-1 and have been very happy with the picture quality. Up until recently, kit lenses were of lower quality and people viewed them as good entry level purchases.

B h photo.34921152
6 February 2018

This is my new walk-around lens. It is sharp as a tack, and at f/3.5 it is fast enough for almost everything. It only comes off my K-1 when I am in a very low light position, or need a longer telephoto lens

24 November 2017

The zoom hangs up. After 4 months of very light use, something inside came loose and it stops it from turning.

9 November 2017

Works for me as a basic lens on my Pentax Full Frame K1 camera. Easy to use and totally awesome picture quality. Quality solidly built lens. This is not cheap plastic construction. Fine optics for a lens in this price point.

Product Highlights
  • K-Mount Lens/Full-Frame Format
  • Aperture Range: f/3.5-5.6 to f/22-32
  • ED Glass Elements
  • Super Protect & HD Multi-Layer Coatings
  • Supersonic Direct-Drive AF Motor
  • Quick-Shift Focus System
  • Minimum Focus Distance: 1.64'
  • Dust- and Weather-Resistant Design
  • 9-Blade Rounded Diaphragm
In The Box
  • Pentax HD PENTAX-D FA 28-105mm f/3.5-5.6 ED DC WR Lens
  • PH-RBC62 62mm Lens Hood for Pentax SMC DA 18-135MM f/3.5-5.6 ED AL (IF) DC WR Lens
  • O-LC62 62mm Lens Cap
  • Rear Lens Cap (B) for Bayonet Mount Lenses
  • Limited 1-Year Warranty
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