Sigma 90mm F2.8 Macro A-mount lens review by fennetje

reviewer#11539 date: Dec-12-2013
sharpness: 5
color: 5
build: 3
distortion: 5
flare control: 4
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 MP; 24MP24 MP; 36MP36 MP; 42MP42 MP; 61MP61 MP
ownership:I own this lens
compared to:minolta 50 1.7
smc takumar 50 3.5 macro
minolta 35-105 old
tokina AF 100 macro
price paid:120 eur
positive:sharpness
bokeh
double as portrait lens
negative:build - AF gears
AF is quirky and inaccurate
Manual focus is uneven ( gears again )
comment:updated on 14-01-2016:
Although the gears are metal, something got dislocated on my near mint sample a couple of years ago. After a long study, and some filing and adding spacers to the gear mounts, I could re-establish AF ( for now ). AF is still noisy & a bit uneven/unsure, which could be caused by my handywork. Initially my A55 had issues with the lens after a couple of days, especially at the focus delimiter point (0,5m focus distance).

Color, Sharpness & bokeh are great, it is a long prime lens after all.

So keeping in mind this is a first gen AF lens by a third party, where AF doesn't seem to be optimally implemented, it still is usable today & has its optical qualities. I increased the build rate to 3, as my previous 2 evaluation doesn't do it justice. I do appreciate the build from a maintenance point of view, as even a novice like me could figure out how to assemble and disassemble it.

comparing to the tokina, this lens is not as sharp ( but i'm splitting hairs here ), does not focus nearly as fast & accurate and the build seems toylike in comparison to it. Flare may be a little better than the tokina.

rating summary

lens image
  • total reviews: 22
  • sharpness: 4.70
  • color: 4.36
  • build: 4.45
  • distortion: 4.86
  • flare control: 4.32
  • overall: 4.54
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