Description
EF100mm f/2.8 Macro USM
A medium telephoto macro lens offering excellent picture quality and close-up magnification up to life size (1:1). Optimizing the optical power distribution reduces spherical aberration fluctuation during close-up photography, delivering constant high picture quality over all focusing distance. The inner focusing system makes the working distance (the distance from the lens to the subject) 149mm during life-size photography – twice the distance of the 50mm macro lens.
Convenient operability is achieved with the easy full-time manual focus ideal for subtle adjustments of the focus position (a task in macro photography and the non-rotating front lens element. If the optional ring-type tripod mount B (B) (with an adapter for the EF100mm f/2.8 Macro USM) is used, switching between vertical and horizontal compositions without affecting the optical axis is a simple matter.
- Focal length and maximum aperture : 100 mm 1:2.8
- Lens construction : 12 elements in 8 groups
- Diagonal angle of view : 24°
- Focus adjustment : Ring-type USM, inner focusing system, full-time manual focus
- Closest focusing distance : 0.31 m/ 1 ft., 1 x magnification
- Filter size : 58 mm
- Max. diameter x length, weight : ø 78.6 x 118.6 mm, 580 g/ 3.1” x 4.7”, 1.3 lbs.
SPECIFICATIONS
| Angle of View (Diagonal) | 24° | ||
| Angle of View (Horizontal) | 20° | ||
| Angle of View (Vertical) | 14° | ||
| Closest Focusing Distance (m, ft) | 0.31/1.0 | ||
| Construction (groups elements) | 8-12 | ||
| Diameter x Length (mm) (Max.) | 78.6 x 118.6 | ||
| Distance Scale | o | ||
| Drive System | Ring-type USM | ||
| Filter Size (mm) | 58 | ||
| Max. Magnification (x) | 1 | ||
| Min. Aperture | 32 | ||
| No. of Diaphragm Blades | 8 | ||
| Anti-dust and Moisture | Not Supported | ||
| Weight (g) (Approx.) | 580 |
