Pentax F 17-28mm lens

Digital camera lens
Photographic lens
f/3.5-4.5Close focus distance0.45 m (1 ft 6 in)[1]Max. magnification0.07[1]Construction9 elements in 7 groupsFeaturesLens-based stabilizationNo NoMacro capableNo NoUnique featuresFisheyeApplicationSpecial EffectPhysicalMax. length61 mm (2.4 in)[1]Diameter65 mm (2.6 in)[1]Weight255 g (9.0 oz)[1]Filter diameterN/AAccessoriesLens hoodbuilt-inAngle of viewDiagonal180°–90°[1]

The smc Pentax-F 17–28mm Fish-eye f/3.5–4.5 is the first fisheye zoom lens, manufactured by Pentax for single-lens reflex cameras (SLRs) with a K lens mount. At its widest setting of 17mm, it affords a 180° diagonal angle of view images for all K-mount full-frame SLR cameras; at 28mm, the diagonal angle of view is reduced to 90° on the diagonal. Typical fisheye barrel distortion is evident at all focal lengths. A successor model, the Pentax DA 10-17mm lens, was introduced with the same view angles and closer focusing capability for APS-C cameras in 2006.

History and design

The lens was designed by Jun Hirakawa and a patent was applied for the design in 1994, granted in 1998.[2]

Longtime photography writer Herbert Keppler was a noted fan of the lens, as its unique zoom capabilities allow the user to minimize the appearance of barrel distortion.[3] Keppler wrote in an informal review "You don't use this lens to make your best girl- or boyfriend look pretty or handsome, but it does produce some fantastically fascinating effects. [...] there still are many moments when its coverage just fits the coverage of my mind."[4]

  • Rogers Centre, 17mm (2016).
    Rogers Centre, 17mm (2016).
  • Inside Rogers Centre, 28mm (2016).
    Inside Rogers Centre, 28mm (2016).
  • Distortion minimized by subject matter and placement, 28mm (2016).
    Distortion minimized by subject matter and placement, 28mm (2016).
  • Lines not passing through center are distorted, 17mm (2016).
    Lines not passing through center are distorted, 17mm (2016).
  • Distortion at full-frame view, 17mm (2016).
    Distortion at full-frame view, 17mm (2016).

References

  1. ^ a b c d e f "F-ZOOM Lenses". Pentax. 1999. Archived from the original on 24 August 1999. Retrieved 6 November 2017.
  2. ^ US patent 5724193A, Hirakawa, Jun, "Super wide angle zoom lens", published 1998-03-03, issued 1998-03-03, assigned to Pentax Corp 
  3. ^ Keppler, Herbert (August 2006). "SLR: World-Class Glass". Popular Photography. Retrieved 5 November 2017.
  4. ^ Keppler, Herbert (September 1996). "17mm fisheye to 28mm wide-angle zoom: What a wacky idea, or is it?". Popular Photography. Retrieved 5 November 2017.
Wikimedia Commons has media related to SMC Pentax-F 17-28mm F3.5-4.5 Fish-Eye.
  • Hirakawa, Jun (1997). "魚眼ズームレンズの開発" [Development of Fish-eye Zoom Lens]. 日本写真学会誌 [Journal of the Japan Photographic Society]: 94–97. Retrieved 6 November 2017.
  • "smc PENTAX-F FISH-EYE 17-28mm F3.5-4.5". flickr. Retrieved 5 November 2017.
  • Silber, Julia (June 2006). "Fisheye View". Popular Photography. Retrieved 5 November 2017.
  • Keppler, Herbert (January 2008). "Lens First". Popular Photography. Retrieved 5 November 2017.
  • "smc PENTAX-F 17-28mm f/3.5-4.5 Fish-Eye". shutter releasing [blog]. 12 July 2012. Retrieved 6 November 2017.
  • The 17-28mm smc PENTAX-F "on the fisheye list"/

Specifications

  • "Lenses: 35mm: F-ZOOM". Pentax USA. Archived from the original on 18 June 2004. Retrieved 5 November 2017.
  • v
  • t
  • e
Pentax K-mount lenses
DA*
Prime
Zoom
DA
Prime
Zoom
DA Limited
Prime
Zoom
D FA and D FA*
Prime
Zoom
FA Limited
Prime
FA*
Prime
  • FA* 24mm
  • FA* 85mm
  • FA* 200mm
  • FA* 200mm Macro
  • FA* 300mm
  • FA* 400mm
  • FA* 600mm
Zoom
  • FA* 28-70mm
  • FA* 80-200mm
  • FA* 250-600mm
FA and FA J
Prime
  • FA 20mm
  • FA 28mm
  • FA 28mm Soft
  • FA 35mm
  • FA 50mm
  • FA 50mm Macro
  • FA 85mm Soft
  • FA 100mm Macro
  • FA 135mm
Zoom
  • FA J 18-35mm
  • FA 20-35mm
  • FA 24-90mm
  • FA 28-70mm
  • FA 28-80mm
  • FA J 28-80mm
  • FA 28-90mm
  • FA 28-105mm
  • FA 28-200mm
  • FA 35-80mm
  • FA 70-200mm
  • FA J 75-300mm
  • FA 80-200mm
  • FA 80-320mm
  • FA 100-300mm
F and F*
Prime
  • F 28mm
  • F 50mm
  • F 85mm
  • F 100mm Macro
  • F 135mm
  • F* 300mm
  • F* 600mm
Zoom
  • F 17-28mm Fish-eye
  • F 24-50mm
  • F 28-80mm
  • F 35-70mm
  • F 35-80mm
  • F 35-105mm
  • F 35-135mm
  • F 70-210mm
  • F 80-200mm
  • F 100-300mm
  • F* 250-600mm
A and A*
Prime
  • A 15mm
  • A 16mm Fish-eye
  • A 20mm
  • A 24mm
  • A 28mm
  • A 35mm
  • A 50mm
  • A 50mm Macro
  • A* 85mm
  • A 100mm
  • A 100mm Macro
  • A 135mm
  • A* 135mm
  • A 200mm
  • A* 200mm
  • A* 200mm Macro
  • A* 300mm
  • A 400mm
  • A* 400mm
  • A* 600mm
  • A* 1200mm
Zoom
  • A 24-50mm
  • A 28-80mm
  • A 28-135mm
  • A 35-70mm
  • A 35-80mm
  • A 35-105mm
  • A 35-135mm
  • A 35-210mm
  • A 70-210mm
  • A 80-200mm
M and M*
Prime
  • M 20mm
  • M 28mm
  • M 35mm
  • M 40mm
  • M 50mm
  • M 50mm Macro
  • M 85mm
  • M 100mm
  • M 100mm Macro
  • M 120mm
  • M 135mm
  • M 150mm
  • M 200mm
  • M* 300mm
  • M 400mm
Zoom
  • M 24-35mm
  • M 24-50mm
  • M 28-50mm
  • M 35-70mm
  • M 40-80mm
  • M 75-150mm
  • M 80-200mm
original K-series
Prime
  • K 15mm
  • K 17mm Fish-eye
  • K 18mm
  • K 20mm
  • K 24mm F2.8
  • K 24mm F3.5
  • K 28mm F2
  • K 28mm F3.5
  • K 28mm F3.5 shift
  • K 30mm
  • K 35mm F2
  • K 35mm F3.5
  • K 50mm F1.2
  • K 50mm F1.4
  • K 50mm macro
  • K 55mm F1.8
  • K 55mm F2
  • K 85mm F1.8
  • K 85mm soft
  • K 100mm bellows
  • K 100mm macro
  • K 105mm
  • K 120mm
  • K 135mm F2.5
  • K 135mm F3.5
  • K 150mm
  • K 200mm F2.5
  • K 200mm F4
  • K 300mm
  • K 400mm
  • K 500mm
  • K 1000mm
  • K 1000mm reflex
  • K 2000mm reflex
Zoom
  • K 28-80mm
  • K 45-125mm
  • K 80-200mm
  • K 85-210mm F3.5
  • K 85-210mm F4.5
  • K 135-600mm
  • K 400-600mm
Special
Zoom
  • AF 35-70mm (for ME F)