Package Contents

Case, ET-120 Hood, Wide Strap, 52mm Drop-In Gel Filter Holder (with glass filter mounted), Detachable Tripod Collar.
Overview

Telephoto lens newly equipped with an Image Stabilizer enabling hand-held shooting for easier movement. The fluorite element and two UD-glass elements effectively correct the chromatic aberrations prone to occur with telephoto lenses. With the EOS-1v and EOS-3, the AF speed becomes the world's fastest. To reduce the overall weight and enhance portability, the lens barrel and many other exterior parts use magnesium-alloy. Also, the detachable tripod collar revolves smoothly and locks securely.
Features

- World´s fastest AF tracking and response with EOS-3*
- Revised internal AF algorithms optimized for the new EOS-3
- Best image quality ever in a Canon 300mm f/2.8 lens
- Image Stabilization adds to low-light shooting capability, and now operates with a tripod
- New magnesium alloy construction for improved handling ease
- Rotating and removable Magnesium alloy tripod mount
- Fully compatible with EF 1.4x and 2x Tele-Extenders, and the EF Extension Tubes
- New weather-resistant construction for superb durability even in the harshest environments
- New spherical-shaped front protective element to eliminate reflections with digital SLRs
* As of 5/99: With other EOS bodies, AF speed will be the same as
previous EF 300/2.8L Lens.
Specifications

| Lens Construction |
17 elements in 13 groups, 1 Fluorite and 2 UD elements |
| Weight |
5.9 lb |
| Lens Coating |
Super Spectra multi-coating |
| Magnification @ 8.2 feet |
0.13x (0.19x with EF 1.4x Extender; 0.28x with EF 2x Extender) |
| Distance Limiter Switch |
2.5m - Infinity; 2.5m - 6.4m; and 6.4m - Infinity |
| Focusing Motor |
Ring-type Ultrasonic Motor (USM); optimized for EOS-3. |
| AF Capability w/ EF 2X |
Full AF with any EOS body when used with EF 2x Extender |
| Aperture Range |
f/2.8 - f/32, Canon Electro-Magnetic Diaphragm |
| Diaphragm Blades |
Eight |
| Tripod Collar |
Dedicated for EF 300 f/2.8L IS only; removable; weight 4.9 oz. |
| Lens Hood |
ET-120 (new) Carbon-fiber construction with Rayon pile lining, weight 6.5 oz. |
| Front Lens Cap |
Dedicated E-185 |
| Included Case |
(New) Lens Case 300; Polyethylene shell with one carry handle |