Sigma AF 105mm F2.8 EX DG OS HSM Macro Specifications
   
  Product ID: 
#258
  Compatibility: 
analog/digital
  Diagonal Angle of View: 
23.3°
  Maximum Magnification: 
1:1
  Minimum Aperture: 
F22
  Number of Aperture Blades: 
9
  Iris Pattern: 
rounded
  Minimum Distance: 
31cm (working distance at 1:1 is 121mm)
  Filter Thread: 
62mm
  Maximum Diameter: 
78.3mm
  Length: 
126.8mm
  Weight: 
725g
  Focus Type: 
Hyper Sonic Motor, floating elements
  Full Focus Throw: 
160°
  IR Capability: 
reported by DPanswers
  Lens Hood: 
LH 680-03 (bayonet mounted, round shape)
  Produced: 
2011
  Tests: 
  PopPhoto Measurements: 
101.61mm F3.01 at 1:0.90
   
  Additional Information: 
The lens features dust and moisture sealings and comes with APS-C lens hood adapter HA 680-01 included.
    Sigma's OS seems to face similar incompatibility problems with old analog bodies like Canon's own IS lenses. I.e. Sigmaphoto.com puts a note to many fullframe OS lenses either reading "This lens cannot be used with film SLR cameras with the exception of the Nikon F6 and Canon EOS-1v." or (seemingly making the issue more clear) "For Nikon and Canon mounts, Optical Stabilizer (OS) function will not work with film SLR cameras except Nikon F6 and Canon EOS-1V."