Sigma AF 120-400mm F4.5-5.6 DG APO OS HSM Specifications
Product ID: #728
Diagonal Angle of View: 20.4° - 6.2°
Maximum Magnification: 1:4.2
Minimum Aperture: F22
Number of Aperture Blades: 9
Minimum Distance: 150cm
Filter Thread: 77mm
Maximum Diameter: 92.5mm
Focus Type: Hyper Sonic Motor, rear focus
Zoom Type: rotary
Lens Hood: LH 830-01 (bayonet mounted, round shape)
Tests: PhotoZone tested on EOS 5D; SLRgear; Popular Photography
Popular Photography Measurements: 1:9.7-1:3.6
- The lens came with detachable tripod collar TS-31.
- 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."
- Sigma reported slow down problems with the EOS 40D for lenses with SN below 1011001, when the camera was set to servo mode with the lens' OS activated. A service update was/is available.
- Sigma reported Live View issues with the EOS 750D and 760D for lenses with SN #12971601 or later: When the Live View Mode button on the camera body is pressed, operation stops. A service update was/is available [source].