http://www.usa.canon.com/cusa/support/professional/professional_cameras/flashes/speedlite_200e?pageKeyCode=writeReviewPage
Speedlite 200E
7268

Specifications
Main Unit Spec
| Flash | |
| Type | Clip-on type TTL automatic flash with directly coupled contacts. Series control system. |
| Guide Number | 20 m/65 ft.(ISO 100) |
| Flash Coverage | Covers the angle of view of a 35mm lens.(Covers the angle of view of a 28mm lens with the optional wide adapter attached.) |
| Number of Flashes | 400 - 4000 with new alkaline batteries. |
| Recycling Time | Approx. 0.5 to 4 sec. |
| Flash Duration | 1 ms. or less. |
| Sync Timing | First curtain sync only. |
| Flash Control System | TTL automatic control by metering light reflected from the film plane. |
| Shooting Distance Range | 0.7-7m/2.3-23 ft. (Based on ISO 100 film. The shooting distance range changes according to film speed.) |
| Effective Distance Range | 1-5m/3.3-16.4 ft. |
| AF Auxilliary Light | Automatically emitted when the shutter button is pressed halfway if necessary. |
| General | |
| Power Source | Four AA-size batteries. |
| Dimensions | 64 (W) X 104 (H) x 41 (D)mm / 2-1/8" (W) x 4-1/16" (H) x 1-5/8" (D) |
| Weight | 130g/4.6 oz without batteries230g/8.1 oz with batteries. |
