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Identification
Along with the RC series, Canon created several other series of cameras including the PowerShot, the Digital IXUS, and the EOS. The EOS series is a series of digital single-lens reflex cameras (DSLRs), which includes higher-end professional models as well as lower-end beginner models. While still available, Canon cameras using photographic film are not as common as they were before the advent of digital cameras.
To identify a camera, find the product name which is generally printed on the front of the camera. Then, the serial number can be found on the underside of the camera, or in the battery compartment.
Technical Specifications
- Type: Direct-contact, shoe-mount flash with E-TTL/TTL autoflash
- Compatible Cameras:
- Type-A EOS cameras (E-TTL autoflash)
- Type-B cameras (TTL autoflash)
- Flash Duration: 1.2 ms or less with normal flash
- Flash Coverage: 24, 28, 35, 50, 70, and 105 mm
- Flash Modes:
- Normal sync
- High-speed sync (FP flash)
- Test firing
- Modeling flash (at 70 Hz for 1 sec)
- Flash Range:
- With normal sync: 0.7 - 24.2 m
- With high-speed sync: 0.7 - 12.7 m (at 1/180 sec)
- AF-assist Beam Range: 0.7 - 7 m
- Wireless Slave Channels: 4
- Power Source: Four AA Batteries
- Dimensions:
- Width: 71.5 mm (2.8 in)
- Height: 123 mm (4.82 in)
- Depth: 99.4 mm (3.89 in)
- Weight: 300 g (10.6 oz)
Source: Canon Instruction Manual
Additional Information
Wikipedia: Canon EOS flash system
Canon Speedlite 420EX Bedienungsanleitung
