Canon EF 35-80mm III Teardown
Tools
These are some common tools used to work on this device. You might not need every tool for every procedure.
Identification
The marking "CANON ZOOM LENS EF 35-80mm 1:4.5-5.6 III" will appear around the front lens element.
Technical Specifications
General:
- Focal Length: 35-80 mm
- Maximum Aperture: f/4.5-5.6
- Minimum Aperture: f/32
- Closest Focusing Distance: 0.4 m (1.3 ft)
- Maximum Magnification: 0.23 x
Construction:
- Lens Groups: 8
- Lens Elements: 8
- No. of Diaphragm Blades: 5
- Focus Adjustment: Front group rotating extension system with micromotor
Physical:
- Lens Mount Type: Canon EF
- Filter Diameter: 52 mm
- Maximum Diameter x Length: 65 x 63.5 mm (2.6 x 2.5 in)
- Weight: 175 g (6.2 oz)
Accessories:
- Case: LP814
Source: Canon Camera Museum & Canon Lens Specifications