Pentax DA 10-17mm lens

Photographic lens

smc Pentax-DA 10-17mm f/3.5-4.5 ED (IF) Fish-Eye
Technical data

Maker	Pentax
Type	Zoom
Focus drive	Screwdrive
Focal length	10-17mm
Focal length (35mm equiv.)	15-25.5mm
Crop factor	1.5
Aperture (max/min)	f/3.5-4.5 / f/22-32
Close focus distance	0.46 ft (0.14 m)
Max. magnification	0.39x
Diaphragm blades	6
Construction	10 elements in 8 groups
Features
Manual focus override	Yes
Macro capable	No
Unique features	Fisheye zoom
Application	Landscape, industrial, artistic
Physical
Max. length	2.8 in (71 mm)
Diameter	2.7 in (69 mm)
Weight	11.3 oz (320 g)
Filter diameter	None
Accessories
Lens hood	Integral
Case	S80-80
Angle of view
Diagonal	180 to 100 degrees
History
Introduction	January 2006
Retail info
MSRP	$579.95 (2006) USD

The smc Pentax-DA 10-17mm f/3.5-4.5 ED (IF) Fish-Eye lens is a fisheye zoom lens for the Pentax K-mount. It offers an up to 180 degree view, and allows quick shift focus (Pentax's term for giving the photographer the ability to manually focus the lens even when the camera is in autofocus mode without damaging the lens or camera).

History and design

A patent for the lens design was filed on 30 August 2005, and granted in 2008. The design is credited to Takayuki Ito and Jun Hirakawa.^[1] Pentax announced the lens on November 30, 2005, with availability to commence in January 2006. It was designed in conjunction with Tokina,^[2] who would later market a self-branded version in Nikon AF-D and Canon EF mounts starting in October 2006.^[3] The 10–17mm lens was seen as a re-release of the earlier Pentax F 17–28mm lens introduced in the mid-1990s, providing similar functionality with the focal lengths and coverage updated for APS-C format digital SLRs.^[4] Compared to the earlier lens, the 10-17mm lens has improved close-focus capability.^[5]

Glass technologies used in this lens include ED glass for low dispersion and reducing chromatic aberration, as well as the SP super-protect coating for repelling dust, grease and water.^[2] It has a 35mm equivalent focal length of 15mm-26mm.^[4]

Gallery

El Castillo at 10mm. Lines not running through the center are distorted.
El Castillo photographed at 17mm. Distortion is still visible, but minimized.
Distortion still evident in off-center horizon at 14mm.
Tokina 10–17mm lens.

References

^ US patent 7317581B2, Ito, Takayuki & Hirakawa, Jun, "Fisheye lens system and a fisheye zoom lens system", published 2008-01-08, issued 2008-01-08, assigned to Pentax Corp
^ ^a ^b "Pentax unveils digital fish-eye lens" (Press release). Pentax Imaging. 30 November 2005. Archived from the original on 17 March 2006. Retrieved 5 November 2017.
^ "AT-X 107 AF DX Fish-Eye AF 10-17mm f/3.5~4.5". Tokina. 2006. Archived from the original on 6 December 2006. Retrieved 5 November 2017.
^ ^a ^b Silber, Julia (June 2006). "Fisheye View". Popular Photography. Retrieved 5 November 2017.
^ Keppler, Herbert (January 2008). "Lens First". Popular Photography. Retrieved 5 November 2017.

External links

Media related to SMC Pentax-DA 10-17mm F3.5-4.5 Fish-Eye ED (IF) at Wikimedia Commons
Pentax Ricoh Imaging Americas Corp., smc PENTAX DA 10-17mm F3.5-4.5 ED (IF) Fish-Eye
Nyquist, Greg (11 August 2011). "Pentax DA 10-17 f3.5-4.5". The Northcoast Photographer [blog]. Retrieved 6 November 2017.
PENTAX UNVEILS DIGITAL FISH-EYE LENS, Pentax Press Release
PENTAX introduces the new smc PENTAX-DA FISH-EYE 10-17mm F3.5-4.5ED [IF], Pentax Press Release

Pentax K-mount lenses

DA*

Prime	DA* 55mm DA* 200mm DA* 300mm
Zoom	DA* 11-18mm DA* 16-50mm DA* 50-135mm DA* 60-250mm

Prime	DA 14mm DA 35mm DA 40mm XS DA 50mm DA 560mm
Zoom	DA 10-17mm Fish-eye DA 12-24mm DA 16-45mm DA 16-85mm DA 17-70mm DA 18-50mm RE DA 18-55mm DA 18-135mm DA 18-250mm DA 18-270mm DA 50-200mm DA 55-300mm DA 55-300mm PLM

DA Limited

Prime	DA 15mm Limited DA 21mm Limited DA 35mm Macro Limited DA 40mm Limited DA 70mm Limited
Zoom	DA 20-40mm Limited

D FA and D FA*

Prime	D FA 50mm Macro D FA* 50mm D FA* 85mm D FA 100mm Macro D FA 100mm Macro WR
Zoom	D FA 15-30mm D FA 24-70mm D FA 28-105 D FA* 70-200mm D FA 70-210mm D FA 150-450mm

FA Limited

Prime	D FA 21mm Limited FA 31mm Limited FA 43mm Limited FA 77mm Limited

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

Prime