Tokina Contax/Yashica mount Wide-angle zoom
Tokina AT-X 240 24-40mm f/2.8
Quick answer
The Tokina AT-X 240 24-40mm f/2.8 is a wide-angle to standard zoom lens covering 24-40mm at f/2.8 for the Contax/Yashica mount. Its bright maximum aperture handles indoor and evening light reasonably well.
- Full frame
- APS-C (36–60mm equiv.)
- Micro Four Thirds (48–80mm equiv.)
- Other systems via mount adapter
- Focal
- 24–40mm
- Aperture
- f/2.8–22
- Weight
- 520g
- Filter
- 72mm
- Min focus
- 0.4m
- AF motor
- None
What 24-40mm sees
- Full frame crop 1.0×
- 56.8–84.1° 48.5–73.7° horizontal
- APS-C crop 1.5× → 36–60mm
- 39.7–62° 33.4–53.1° horizontal
- Micro Four Thirds crop 2.0× → 48–80mm
- 30.3–48.5° 25.4–41.1° horizontal
Diagonal angle of view. Frames drawn to scale at 24mm (and 40mm). 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 240 24-40mm f/2.8 specifications
Optics
- Focal length
- 24-40mm
- Maximum aperture
- f/2.8
- Minimum aperture
- f/22
- Format coverage
- Full frame
- Optical construction
- 17 elements in 13 groups
- Aperture blades
- 7
Focus
- Autofocus motor
- None
- Minimum focus distance
- 0.4 m
Physical
- Filter thread
- 72 mm
- Weight
- 520 g
- Length
- 78 mm
- Diameter
- 76 mm
General
- Brand
- Tokina
- Mount
- Contax/Yashica
- Lens type
- Zoom
Specification source: tokinalens.com
What can you shoot with the Tokina AT-X 240 24-40mm f/2.8?
At 24-40mm this is a wide-angle to standard zoom, which typically suits:
- Landscapes and cityscapes
- Street and travel photography
- Environmental portraits and interiors
- Everyday and street photography
- Natural-perspective portraits
Its bright maximum aperture handles indoor and evening light reasonably well.
Frequently asked questions
What mount does the Tokina AT-X 240 24-40mm f/2.8 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 240 24-40mm f/2.8?
It zooms across 24-40mm with a maximum aperture of f/2.8. That makes it a wide-angle to standard lens.
Is the Tokina AT-X 240 24-40mm f/2.8 a prime or a zoom lens?
It is a zoom lens covering 24-40mm, so you can reframe without moving. Its maximum aperture is f/2.8.
What is the Tokina AT-X 240 24-40mm f/2.8 equivalent on a crop sensor?
On APS-C (1.5x crop) it frames like 36–60mm on full frame, with a 33.4–53.1° horizontal and 39.7–62° diagonal field of view. On Micro Four Thirds (2x crop) it frames like 48–80mm on full frame, with a 25.4–41.1° horizontal and 30.3–48.5° 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.
More Tokina lenses for Contax/Yashica
All Tokina lensesOther 24-40mm lenses
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