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
The Pentax K-mount, sometimes referred to as the "PK-mount", is a bayonet lens mount standard for mounting interchangeable photographic lenses to 35 mm single-lens reflex (SLR) cameras. It was created by Pentax in 1975, and has since been u ...
. 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. Pentax announced the lens on November 30, 2005, with availability to commence in January 2006. It was designed in conjunction with
Tokina
is a Japanese manufacturer of photographic lenses and CCTV security equipment.
Lens designations
* FX - Full frame
* DX - cropped digital
* AF - Auto-Focus
* AT-X Pro - professional line (constant aperture zooms or primes)
* AT-X - consumer lin ...
,
who would later market a self-branded version in Nikon AF-D and Canon EF mounts starting in October 2006. 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.
Compared to the earlier lens, the 10-17mm lens has improved close-focus capability.
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.
It has a 35mm equivalent focal length of 15mm-26mm.
Gallery
File:Storm over Kukulkan's Pyramid (4604343325).jpg, El Castillo at 10mm. Lines not running through the center are distorted.
File:Base of El Castillo (4604343461).jpg, El Castillo photographed at 17mm. Distortion is still visible, but minimized.
File:Pre-storm Volley (11143365714).jpg, Distortion still evident in off-center horizon at 14mm.
File:MiNe-IP5S 20141010-224930R (15536257755).jpg, Tokina 10–17mm lens.
See also
*
Pentax F 17–28mm, the world's first fisheye zoom lens
References
External links
*
* Pentax Ricoh Imaging Americas Corp.
smc PENTAX DA 10-17mm F3.5-4.5 ED (IF) Fish-Eye*
PENTAX UNVEILS DIGITAL FISH-EYE LENS Pentax Press Release
, Pentax Press Release
{{Pentax K-mount lenses
10-17
Fisheye lenses