Quick answer
The Tamron 28-80mm f/3.5-4.2 Adaptall-2 is a wide-angle to short telephoto zoom lens covering 28-80mm at f/3.5 for the Olympus OM mount. Its moderate maximum aperture works best in good light or with a higher ISO.
About this lens
Tamron 28-80mm f/3.5-4.2 Adaptall-2: a manual-focus standard zoom lens with a 28-80mm focal length and a maximum aperture of f/3.5-4.2, made for Olympus OM mount cameras. The range covers everything from wide scenes to portraits, so it works as a general-purpose lens.
Tamron 28-80mm f/3.5-4.2 Adaptall-2 specifications
- Brand
- Tamron
- Mount
- Olympus OM
- Focal length
- 28-80mm
- Maximum aperture
- f/3.5
- Lens type
- Zoom
- Format coverage
- full-frame
- Released
- 1983
- Optical construction
- 9 elements in 8 groups
- Autofocus motor
- none
- Minimum focus distance
- 0.36 m
- Filter thread
- 67 mm
- Weight
- 480 g
- Length
- 86.5 mm
- Diameter
- 70 mm
Specification source: en.wikipedia.org
What can you shoot with the Tamron 28-80mm f/3.5-4.2 Adaptall-2?
At 28-80mm this is a wide-angle to short telephoto zoom, which typically suits:
- Landscapes and cityscapes
- Street and travel photography
- Environmental portraits and interiors
- Everyday and street photography
- Natural-perspective portraits
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 (adapted mount, so sensor size depends on your camera). Not measured.
| Sensor | Crop | Equivalent | Horizontal FOV | Diagonal FOV |
|---|---|---|---|---|
| Full frame | 1.0x | 28–80mm | 25.4–65.5° | 30.3–75.4° |
| APS-C | 1.5x | 42–120mm | 17.1–46.4° | 20.4–54.5° |
| Micro Four Thirds | 2.0x | 56–160mm | 12.8–35.6° | 15.4–42.2° |
Frequently asked questions
What mount does the Tamron 28-80mm f/3.5-4.2 Adaptall-2 use?
It uses the Olympus OM mount, so it fits Olympus OM cameras directly and can be used on other systems through a mount adapter.
What is the focal length of the Tamron 28-80mm f/3.5-4.2 Adaptall-2?
It zooms across 28-80mm with a maximum aperture of f/3.5. That makes it a wide-angle to short telephoto lens.
Is the Tamron 28-80mm f/3.5-4.2 Adaptall-2 a prime or a zoom lens?
It is a zoom lens covering 28-80mm, so you can reframe without moving. Its maximum aperture is f/3.5.
What is the Tamron 28-80mm f/3.5-4.2 Adaptall-2 equivalent on a crop sensor?
On APS-C (1.5x crop) it frames like 42–120mm on full frame, with a 17.1–46.4° horizontal and 20.4–54.5° diagonal field of view. On Micro Four Thirds (2x crop) it frames like 56–160mm on full frame, with a 12.8–35.6° horizontal and 15.4–42.2° diagonal field of view. These figures are calculated from the focal length and crop factor.
Alternatives for Olympus OM from other brands
All Olympus OM lensesSame mount, overlapping focal range, closest maximum aperture first.
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All Tamron lenses
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