Cosina AF 100mm F3.5 MC macro A-mount lens review by Rusty

reviewer#4492 date: Dec-7-2008
sharpness: 4.5
color: 4
build: 3
distortion: 4
flare control: 4
overall: 3.9
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 used to own this lens
compared to:- Sigma 70-300 APO
- Minolta 50/1.7

price paid:
positive:- Price
- IQ
negative:- Separate 1:1 adaptor
- Build Quality
- Unuseable AF
comment:I got a Phoenix copy

IQ is surprisingly good, considering the barrel wobbles a bit when focusing. AF mechanics make manual focusing a bit touchy, and the AF is borderline useless because of noise and inaccuracy.

Can't say much about the build quality. AF apart, I'd say not unlike the Sony 18-70 kitlens. Metal mount makes it feel mounted a bit more solidly.

Separate adapter for true 1:1 macro is a hassle to get on/off all the time, prone to get dirty/lost, but does not affect IQ as much as I thought it would, much better than generic macro diopters.

Plenty sharp when stopped down, an ideal starter macro lens if you don't have the budget. Doubles as a decent portrait lens.

rating summary

lens image
  • total reviews: 63
  • sharpness: 4.63
  • color: 4.48
  • build: 2.78
  • distortion: 4.60
  • flare control: 4.16
  • overall: 4.13 - Home of the alpha system photographer
In memory of Cameron Hill - brettania