Sigma 28-105mm F2.8-4 Aspherical IF A-mount lens review by QuietOC

reviewer#29641 date: Jul-27-2016
sharpness: 4
color: 4
build: 3
distortion: 4
flare control: 4
overall: 3.8
tested on:
  • film camera:Film camera
  • APS-C: 6MP6 MP; 10MP10 MP; 12MP12 MP; 14MP14 MP; 16MP16 MP; 20MP20 MP; 24MP24 MP
  • full frame: 12MP12 MP24MP24 MP36MP36 MP42MP42 MP
ownership:I used to own this lens
compared to:Sony DT 16-105 F3.5-5.6
Sony DT 18-135 F3.5-5.6 SAM
Sony AF 28 F2.8
Minolta AF 28 F2.8
Minolta AF 24-105 F3.5-4.5 D
Minolta AF 28-105 F3.5-4.5/RS
Minolta AF 28-135 F4-4.5
Sigma AF 35-135 F3.5-4.5
price paid:60 USD (used)
positive:Compact size
Light weight
Internal focus/non-rotating filter thread
Very decent performance over entire range
negative:Low Contrast (veiling glare?)
Backward zoom direction
Short throw, stiff, uneven zoom mechanism
Short throw, noisy manual focus
Barrel distortion at 28 mm
72 mm filter thread
comment:This lens was released in 1996 replacing the 28-105mm F4-5.6 UC model. The original suggested retail price was $240 but $200 seems to have been the actual street price. This one is simply marked Aspherical--no "IF" or "D" or "DG" lettering on the barrel. It borrows the lens ID of the Minolta AF 28-135 F4-4.5 lens just like the earlier Sigma 35-135 F3.5-4.5. "Made in Japan"

It really is quite compact and light for offering a range from 28/2.8 and 105/4. It is lighter than the Minolta AF 24-85 F3.5-4.5 not to mention the 28-105 F3.5-4.5. The 72 mm filter thread diameter is unnecessarily large.

Optically it is a small improvement over the slightly larger, heavier Minolta AF 28-105 F3.5-4.5. The controls and feel however are definitely a step down. The focus plane is similarly curved unlike the Minolta AF 28-135 F4-4.5. It matches the half meter minimum focus distance of Minolta AF 28-105 F3.5-4.5. The distortion at 28 mm is very similar to the Minolta AF 28-xx zooms. The aperture blades seem to be straighter than either version of the Minolta.

The 28 mm F2.8 primes have slightly better central sharpness and contrast wide-open and less distortion, but performance across the frame is similar.

Test chart comparison with the Minolta AF 28-105 F3.5-4.5 and others.

rating summary

lens image
  • total reviews: 12
  • sharpness: 3.96
  • color: 4.42
  • build: 3.42
  • distortion: 4.08
  • flare control: 4.08
  • overall: 3.99
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