Minolta AF 28-105mm F3.5-4.5 RS A-mount lens review by seeky

reviewer#10106 date: Apr-10-2012
sharpness: 4
color: 5
build: 5
distortion: 5
flare control: 3
overall: 4.4
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 own this lens
compared to:Sony DT 18-55 f/3.5-5.6
Sony DT 16-50 f/2.8 SSM
Sony DT 35 f/1.8
price paid:
+fast AF
+f/4.5 at long end
+hardly any zoom creep
negative:-veiling flare
-ghosting flare
comment:I bought this lens to get more tele, and to use it on my Dynax 7. I like the bokeh it gives, especcially when using it on the tele end. Colors are also beautiful. The lens has screw-driven AF, and is really fast focusing across the range. Build is better compared to all low-end Sony lenses. MFD can be annoying sometimes, but is normal for this type of lens. The major annoyance is with the abundance of flare with bright light sources in and just out of the frame.

Compared to my other lenses (center sharpness):
-@28mm: Little bit soft wide open, good stopped down, never sharper then 16-50 @ f/2.8, comparable to 18-55.
-@35mm: Good sharpness wide open, never sharper then 16-50 @ f/2.8; as good as 18-55 up to f/4.5.
-@50mm: Very sharp wide open, better than 18-55 stopped down two stops.
-@105mm: Little bit soft wide open, but sharp one stop down. Two stops down and corners are good.

As you can see, it is a little bit mixed across the range. And don't try to compare this lens to the 35mm f/1.8: @1.8 center sharpness is better than the 28-105 @ f/11!! (But the latter isn't a prime...)

Overall, it is a good lens, considering the range. What I noticed however, is that modern zoom lenses are just very good, especially the 16-50 f2.8. But for the reasonable price tag it delivers good overall performance, and Sony doesn't have a lens like this with a good range and relatively wide apertures.

rating summary

lens image
  • total reviews: 45
  • sharpness: 4.54
  • color: 4.76
  • build: 4.80
  • distortion: 4.40
  • flare control: 4.27
  • overall: 4.55
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