Cosina AF 100mm F3.5 MC macro A-mount lens review by Engreeks1

reviewer#6502 date: Dec-2-2009
sharpness: 4.5
color: 5
build: 2
distortion: 5
flare control: 4
overall: 4.1
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:
price paid:110 incl. shipping
positive:Small, light, extremely sharp when not using the close focus adapter. Cheap! Great bokeh.
negative:Annoying having to keep putting the close focus adapter on and off. Noisy, inaccurate AF.
comment:I'm not seriously into Macro so I mostly use this without the adapter on. It's spectacularly sharp (out resolving the a850 pixels) across the entire frame at f8, and pretty good at f3.5.

It is very annoying having to keep putting the 1:1 macro adapter on when ever you want to shoot closer than 1:2 because when it's on you can only focus between 1:1 and 1:2 which means your focus distance is limited to between about 3cm to about 10cm, a pretty narrow range.

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