Canon EF lens specs (40 mm)

General

• Packaged Quantity 1
• Length 0.9 in
• Diameter 2.7 in
• Weight 4.6 oz

Lens System

• Lens System Lens
• Intended For Digital SLR,
  35mm SLR
• Focal Length 40 mm
• Lens Aperture F/2.8
• Minimum Aperture F/22
• Magnification 0.18
• Min Focus Range 11.8 in
• Focus Adjustment Manual,
  Automatic
• Max View Angle 57 degrees
• Lens Construction 4 group(s) / 6 element(s)
• Filter Size 52 mm
• Diaphragm Blades 7
• Lens Coating Super Spectra coating
• Mounting Type Canon EF
• Features Aspherical lens ,
  Full-time manual focusing ,
  Stepping Motor (STM) technology

Miscellaneous

• Included Accessories Dust cap,
  Lens cap