Tamron 28mm f/ 2.5 (model 02B) Review
Tamron 28 mm f / 2.5 is a fast wide-angle lens for 35 mm cameras. 28mm focal length is sufficient to capture the majority of the overall plans and shots, even for ASP/C sensor cameras. Equivalent focal length for my Nikon D3100 camera with a crop factor of 1.5 is equal to 42mm on a full frame.
Produced since 1979 through 1992, in the manual focusing lens era.
Tamron 28 mm f / 2.5 Adaptall-2 with the genuine Adaptall-2-Nikon mount.
Tamron 28 mm f / 2.5 Adaptall-2 without an adaptor.
The lens has a universal mount Tamron Adaptall-2, whereby with a special adapter can be installed on any system with automatic aperture control.
Tamron 28 mm f/ 2.5 Adaptall-2 model 02B Specs
Focal length: 28 mm
Aperture: f/ 2.5 — f/ 32
Weight (gr): 180
Length without adapter (mm): 33
Filter Ø (mm.): 49
Aperture blades: 5
Min. Focus distance (m.): 0.25
Handling and Mechanics
Handling compactly and conveniently. In general, lens assembled good, metal and glass. No backlash. The front element has a small size, which at first seems strange for wide-angle lenses. But such a small diameter of the first element does not provide strong geometric distortion at the edge of the frame.
Tamron 28 mm f/ 2.5 Sample Photos
All samples snapped on Nikon D3100. RAW export without postprocessing.
Sharpness
Most of the examples for this review shot at f/ 2.5. This suggests that the aperture f/ 2.5 sharp well.
f/ 2.5
Sharpness in the center of the frame. Crop 100% of the size of the previous frame.
Sharpness on the edge of the frame, 100% crop size. Observed in the f/ 2.5 chromatic aberrations.
In the center of the frame, sharpness is good and slightly weaker at the edge. At aperture f / 4 sharpness at the edges become also good.
Another example of sharpness on the edge of the frame. 100% crop of the next picture.
Distortion
Distortion for 28 mm lens in the normal range.
f/ 2.5
f/ 2.5
On parallel verticals can observe the level of geometric and barrel distortion. Another example: post Socar in the distance strictly perpendicular, while at the extreme poles observed barrel distortion.
f/ 2.5
Barrel distortion small, and you can shoot people in a close range. but the distortion is still visible, as does the 28 mm.
f/ 2.5
f/ 2.5
Perspective effect
You can achieve a little effect of perspective.
f/ 4
f
/ 5.6
Character and Bokeh
Due to the small focus bokeh is not very blurry, and the object is not much separated from the background.
f/ 2.5 But at close range, you can get a picture with interesting bokeh.
f/ 2.5
Contrast
The lens is multi-coated, have good contrast and generally contrast is good in backlight and sidelight. Has good color characteristic Tamron BBAR coating.
f/ 2.5 In strong backlight catches the flare.
Macro
You can not shoot full macro, but a good close-up can be done.
f/ 2.5
f/ 2.5
Summary
Tamron 28 mm f/ 2.5 Adaptall-2 model 02B in general, a good lens, that it can not expensive to buy. Personally, I like it, they like to shoot. Its small size is well suited for outdoor shooting. And in the bag does not occupy much space.
f/ 2.5
f/ 2.5
For street shooting camera can be hung around the neck, focus on infinity and simply press the button without sight and attract too much attention. Just remember that after 5 meters in all field.
f/ 2.5
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