Tokina Contax/Yashica mount Superzoom
Tokina AT-X 525 50-250mm f/4-5.6
Quick answer
The Tokina AT-X 525 50-250mm f/4-5.6 is a standard to telephoto superzoom lens covering 50-250mm at f/4.0 for the Contax/Yashica mount. Its moderate maximum aperture works best in good light or with a higher ISO.
- Full frame
- APS-C (75–375mm equiv.)
- Micro Four Thirds (100–500mm equiv.)
- Other systems via mount adapter
- Focal
- 50–250mm
- Aperture
- f/4–22
- Weight
- 720g
- Filter
- 55mm
- Min focus
- 1.8m
- AF motor
- None
What 50-250mm sees
- Full frame crop 1.0×
- 9.9–46.8° 8.2–39.6° horizontal
- APS-C crop 1.5× → 75–375mm
- 6.6–32.2° 5.5–27° horizontal
- Micro Four Thirds crop 2.0× → 100–500mm
- 5–24.4° 4.1–20.4° horizontal
Diagonal angle of view. Frames drawn to scale at 50mm (and 250mm). Calculated from the focal length and crop factor (adapted mount, so sensor size depends on your camera), not measured.
Open the field-of-view calculatorTokina AT-X 525 50-250mm f/4-5.6 specifications
Optics
- Focal length
- 50-250mm
- Maximum aperture
- f/4.0
- Minimum aperture
- f/22
- Format coverage
- Full frame
- Optical construction
- 14 elements in 11 groups
Focus
- Autofocus motor
- None
- Minimum focus distance
- 1.8 m
- Maximum magnification
- 0.56×
Physical
- Filter thread
- 55 mm
- Weight
- 720 g
- Length
- 140 mm
- Diameter
- 68 mm
General
- Brand
- Tokina
- Mount
- Contax/Yashica
- Lens type
- Superzoom
Specification source: tokinalens.com
What can you shoot with the Tokina AT-X 525 50-250mm f/4-5.6?
At 50-250mm this is a standard to telephoto superzoom, which typically suits:
- Everyday and street photography
- Natural-perspective portraits
- Documentary and travel work
- Portraits with a flattering perspective
- Events and weddings
Its moderate maximum aperture works best in good light or with a higher ISO.
Frequently asked questions
What mount does the Tokina AT-X 525 50-250mm f/4-5.6 use?
It uses the Contax/Yashica mount, so it fits Contax/Yashica cameras directly and can be used on other systems through a mount adapter.
What is the focal length of the Tokina AT-X 525 50-250mm f/4-5.6?
It zooms across 50-250mm with a maximum aperture of f/4.0. That makes it a standard to telephoto lens.
Is the Tokina AT-X 525 50-250mm f/4-5.6 a prime or a zoom lens?
It is a zoom lens covering 50-250mm, so you can reframe without moving. Its maximum aperture is f/4.0.
What is the Tokina AT-X 525 50-250mm f/4-5.6 equivalent on a crop sensor?
On APS-C (1.5x crop) it frames like 75–375mm on full frame, with a 5.5–27° horizontal and 6.6–32.2° diagonal field of view. On Micro Four Thirds (2x crop) it frames like 100–500mm on full frame, with a 4.1–20.4° horizontal and 5–24.4° diagonal field of view. These figures are calculated from the focal length and crop factor.
Alternatives for Contax/Yashica from other brands
All Contax/Yashica lensesSame mount, overlapping focal range, closest maximum aperture first.
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