Tamron Tamron Adaptall Zoom

28-70mm f/3.5-4.5 Adaptall-2

28-70mm
f/3.5
Zoom
Min focus 0.3 m

Quick answer

The Tamron 28-70mm f/3.5-4.5 Adaptall-2 is a wide-angle to standard zoom lens covering 28-70mm at f/3.5 for the Tamron Adaptall mount. Its moderate maximum aperture works best in good light or with a higher ISO.

About this lens

This 28-70mm f/3.5-4.5 manual-focus standard zoom lens from Tamron fits Tamron Adaptall mount cameras. The range covers everything from wide scenes to portraits, so it works as a general-purpose lens.

Tamron 28-70mm f/3.5-4.5 Adaptall-2 specifications

Brand: Tamron
Mount: Tamron Adaptall
Focal length: 28-70mm
Maximum aperture: f/3.5
Lens type: Zoom
Format coverage: full-frame
Optical construction: 8 elements in 8 groups
Autofocus motor: none
Minimum focus distance: 0.3 m

Specification source: en.wikipedia.org

What can you shoot with the Tamron 28-70mm f/3.5-4.5 Adaptall-2?

At 28-70mm 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 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	28–70mm	28.8–65.5°	34.3–75.4°
APS-C	1.5x	42–105mm	19.5–46.4°	23.3–54.5°
Micro Four Thirds	2.0x	56–140mm	14.7–35.6°	17.6–42.2°

Try the field-of-view calculator

Frequently asked questions

What mount does the Tamron 28-70mm f/3.5-4.5 Adaptall-2 use?

It uses the Tamron Adaptall mount, so it fits Tamron Adaptall cameras directly and can be used on other systems through a mount adapter.

What is the focal length of the Tamron 28-70mm f/3.5-4.5 Adaptall-2?

It zooms across 28-70mm with a maximum aperture of f/3.5. That makes it a wide-angle to standard lens.

Is the Tamron 28-70mm f/3.5-4.5 Adaptall-2 a prime or a zoom lens?

It is a zoom lens covering 28-70mm, so you can reframe without moving. Its maximum aperture is f/3.5.

What is the Tamron 28-70mm f/3.5-4.5 Adaptall-2 equivalent on a crop sensor?

On APS-C (1.5x crop) it frames like 42–105mm on full frame, with a 19.5–46.4° horizontal and 23.3–54.5° diagonal field of view. On Micro Four Thirds (2x crop) it frames like 56–140mm on full frame, with a 14.7–35.6° horizontal and 17.6–42.2° diagonal field of view. These figures are calculated from the focal length and crop factor.