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

reviewer#45601 date: Oct-11-2020
sharpness: 4
color: 4
build: 3
distortion: 4
flare control: 3
overall: 3.6
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:Tamron 20 F2.8 OSD M1:2
Tamron 24 F2.8 OSD M1:2
Sony DT 30 F2.8 Macro SAM
Tamron 35 F2.8 OSD M1:2
Sigma 45 F2.8 DG DN C
Sony FE 50 F2.8 Macro
Sony A 50 F2.8 Macro
Minolta AF 50 F2.8 Macro RS
Minolta AF 50 F3.5 Macro
Minolta MD 50 F3.5 Macro
Tamron SP 60 F2 Macro
Sigma EX 70 F2.8 DG Macro
Tamron SP 90 F2.5 Macro
Canon EF 100 F2 USM
Minolta MC 100 F2.5
Minolta AF 100 F2.8 Macro D
Minolta AF 100 F2.8 Macro RS
Vivitar 135 F2.8 Close Focusing
price paid:49 USD (used)
Rubber focus grip
49 mm filter thread
negative:Dark--more like F4
Mushy corners
Chromatic aberration
Wider than Minolta/Sony 100mm Macros
No distance encoder
comment:A very clean ProMaster Spectrum 7 copy purchased from a large eBay retailer. The 1:1 adapter was not included. "1994 Minolta" "MADE IN JAPAN"

It is a bit strange that this lens was produced by the same company that now sells fairly expensive alloy manual lenses.

The focus throw is very light and loose on this copy. The early review here by Turerkan back in 2007 mentioned a lot of friction.

Image quality is not as good as other 100mm primes.

rating summary

lens image
  • total reviews: 64
  • sharpness: 4.61
  • color: 4.47
  • build: 2.78
  • distortion: 4.59
  • flare control: 4.16
  • overall: 4.12 - Home of the alpha system photographer
In memory of Cameron Hill - brettania