Minolta AF 28-70mm F2.8 G A-mount lens review by MinoltaMad

reviewer#6776 date: Jan-19-2010
sharpness: 4.5
color: 5
build: 5
distortion: 5
flare control: 4
overall: 4.7
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 MP; 24MP24 MP; 36MP36 MP; 42MP42 MP; 61MP61 MP
ownership:I own this lens
compared to:Minolta 85 f1.4 G D
Minolta 85mm F1.4 D
Minolta 80-200 f2.8 G apo HS
CZ 24-70 f2.8 SSM
Tamron SPAF 70-200 f2.8 Di LD (IF) macro
Tamron SPAF 17-35 f2.8-4 Di LD (IF)
Sony 70-400mm G 4-5.6 SSM
price paid:$900 AUD used
positive:colours absolutely rock
bokeh supreme
super creamy
good sharpness
focus speed fine on a900
negative:definitely not as sharp as the KM 28-75 f2.8
close focussing distance is poor
comment:This is tough because I really love this lens and the pictures it produces really pop but there are a couple of drawbacks. It is absolutely not as sharp at the centre or edges at full crop on any camera vs the (cheaper KM 28-75 f2.8), CZ 24-70 f2.8, Minolta 80-200 f2.8 G or Tamron 70-200 f2.8 at 70mm f2.8. By f4 there are no differences but at f2.8 it isn't as sharp. I have just had this lens serviced and focus aligned etc so it is in as new condition but still not as sharp. However we are talking at 100% crops with a marginal loss in sharpness (5-10%) at best and at normal shooting it isn't even noticeable. All other ranges and f-stops are better regarding sharpness. The other qualities of this lens balance and make up for this fact with perfect colour reproduction (unlike the KM 28-75 f2.8)....at f2.8 there is some light fall off in the corners but that happens to a similar extent with the KM 28-75 f2.8 and the CZ 24-70 f2.8 on the a900 particularly at 24/28mm f2.8. Overall I love this lens but don't expect it to be pin sharp at 70mm f2.8. **** UPDATE - had the front elements replaced and the lens now performs much much better - must have been something slightly damaged originally.

rating summary

lens image
  • total reviews: 69
  • sharpness: 4.65
  • color: 5.00
  • build: 4.96
  • distortion: 4.88
  • flare control: 4.25
  • overall: 4.75
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