Quick answer
The Tokina AT-X 107 DX Fisheye 10-17mm f/3.5-4.5 is a ultra-wide fisheye lens covering 10-17mm at f/3.5 for the Pentax K mount. Its moderate maximum aperture works best in good light or with a higher ISO.
About this lens
A 10-17mm f/3.5-4.5 APS-C fisheye lens, the Tokina AT-X 107 DX Fisheye 10-17mm f/3.5-4.5 is designed for Pentax K mount bodies. It suits dramatic perspectives, astrophotography and creative wide-field work.
Tokina AT-X 107 DX Fisheye 10-17mm f/3.5-4.5 specifications
What can you shoot with the Tokina AT-X 107 DX Fisheye 10-17mm f/3.5-4.5?
At 10-17mm this is a ultra-wide fisheye, which typically suits:
- Landscapes and big skies
- Architecture and interiors
- Astrophotography and night skies
Its moderate maximum aperture works best in good light or with a higher ISO.
Full-frame equivalent and field of view
Calculated from the focal length and crop factor. Not measured.
| Sensor | Crop | Equivalent | Horizontal FOV | Diagonal FOV |
|---|---|---|---|---|
| Full frame | 1.0x | 10–17mm | 93.3–121.9° | 103.7–130.4° |
| APS-C | 1.5x | 15–26mm | 70.4–100.4° | 80.6–110.5° |
Frequently asked questions
What mount does the Tokina AT-X 107 DX Fisheye 10-17mm f/3.5-4.5 use?
It uses the Pentax K mount, so it fits Pentax K cameras directly.
What is the focal length of the Tokina AT-X 107 DX Fisheye 10-17mm f/3.5-4.5?
It zooms across 10-17mm with a maximum aperture of f/3.5. That makes it a ultra-wide lens.
Is the Tokina AT-X 107 DX Fisheye 10-17mm f/3.5-4.5 a prime or a zoom lens?
It is a zoom lens covering 10-17mm, so you can reframe without moving. Its maximum aperture is f/3.5.
What is the Tokina AT-X 107 DX Fisheye 10-17mm f/3.5-4.5 equivalent on a crop sensor?
On APS-C (1.5x crop) it frames like 15–26mm on full frame, with a 70.4–100.4° horizontal and 80.6–110.5° diagonal field of view. These figures are calculated from the focal length and crop factor.
Which cameras does the Tokina AT-X 107 DX Fisheye 10-17mm f/3.5-4.5 fit?
Any Pentax K-mount camera, including Pentax K-1, Pentax K-3, Pentax K-3 II, Pentax K-3 Mark III, and Pentax K-30 and 15 more.
Alternatives for Pentax K from other brands
All Pentax K lensesSame mount, overlapping focal range, closest maximum aperture first.
Pentax
HD Pentax-DA 10-17mm F3.5-4.5 ED fisheye
10-17mm · f/3.5 · Pentax K
Pentax
smc DA 10-17mm F3.5-4.5 ED (IF) Fisheye
10-17mm · f/3.5 · Pentax K
Tamron
SP AF 10-24mm F/3.5-4.5 Di II LD Aspherical (IF)
10-24mm · f/3.5 · Pentax K
Pentax
smc Pentax-DA Fish-Eye 10-17mm f/3.5-4.5 ED IF
10-17mm · f/3.5 · Pentax K
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