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Additional information relating to Canon Speedlite 430EZ
A specially designed, dedicated Speedlite for the original EOS-1 back in 1989. Canon's sophisticated A-TTL flash shooting mode takes all the worry out of flash photography. Set your EOS-1 on program AE, choose the flash's A-TTL mode, and start shooting, with no worries about calculating shutter speeds, aperture values or guide numbers. The A-TTL flash output control system responds automatically to everything from shooting in very low light to daylight fill-in flash photography. There are five flash units designed to be used with the EOS-1: the Speedlite 430EZ, 300EZ, and 200E; and the Macro Ring Lite ML-3.
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The "A" stands for Advanced. The EOS-1's A-TTL system makes great flash effects easy to achieve. Put simply, this improved system takes the background into account as well as the foreground, so maintaining the degree of illumination you want in both is possible. Pressing the shutter button halfway causes the 430EZ to emit a beam of infrared light. This pre flash measures the distance to the subject. The shutter speed and aperture value are then determined automatically, based on both the background brightness as detected by the camera in the four outer zones of the evaluative metering system, and on the main subject's distance, as determined by the Speedlite's preflash.
A large LCD panel on the back of the flash displays aperture values that correspond to the operation of the camera, and indicates coupling distance ranges. Moreover, there's lock pin that holds the flash firmly in place and ensures good electrical contact. The Speedlite 430EZ has a maximum guide number of 141 in feet and 43 in meters (at ISO 100).
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Back during the original EOS-1 days with other secondary models, the rather sophisticated Canon Speedlite 430EZ was designed aiming to provide natural-looking flash photography with the camera. The flash head of the flash can zoom automatically to deliver the correct amount of light, and the guide number shifts accordingly, too. The A-TTL mode maintains a natural balance of brightness between the subject and background, and independent flash output compensation can be done up to +3 stops in 1/3-stop increments with the flash, as well as with the exposure compensation capabilities of the camera itself. This kind of control lets you maintain the exact relationship between ambient light and flash, creating the kind of photographic effects you want. Second-curtain sync is another advantage. The flash is fired at the end of a slow shutter speed exposure rather than at the beginning, preserving the natural flow of moving light. The stroboscopic flash function enables multiple exposures of a single frame for a fascinating "stop-motion" effect.
Except for the newer series of Canon SLRs (including the digital SLR models) in some restrictive functions. the old Canon's Speedlite 430EZ, still offers the performance of any EOS electronic flash uni to deliver quality flash photography. Standard 430EZ features include:
* Guide Number 116 (ft.) (ISO 100, 50mm lens)
* Bounce and Swivel Flash Head.
* Internal Automatic Zoom from 2480mm with Manual Override.
* A-TTL, TTL, and Variable Power Manual operation (includes automatic fill-in flash capability).
* Exclusive Rapid-Fire Flash for quick recycling.
* AF Illuminator for low-light operation.
* Electro Luminescent (EL) Data Display panel.
* Second Curtain Sync.
* Display of aperture value and distance ranges in TTL and Manual Modes.
* Modular Off-Camera Accessories for TTL operation with up to 4 flashes.
As compared to the older, 1987 Canon 420EZ flash, addition of newer features include: Flash-fill ratio control up to +J-3 full steps in 1/3 step increments. Choice of power supplies: 4-AA batteries or Transistor Pack E for extended shooting sessions. A locking pin for secure attachment to EOS 630 & EOS-1. 90 second Automatic Shut Off (Save Energy [SE] Function). Mode memory: all settings memorized even when main switch is turned off. Improved Stroboscopic Flash up to 10 flashes per second.
Compatibility with other Canon SLRs. The 430EZ is especially designed for use with the EOS-1 and EOS 630/RT cameras. With other Canon cameras, some features are not available. As an example, the hot shoe lock pin is only used with the EOS-1 and EOS 630. When used with the EOS-1N or EOS-1N RS, A-TTL is only possible in programmed AE mode only. Other shooting modes works primarily in TTL flash
Other compatibility differences are as follows:
EOS 620/650: Flash-Fill Ratio Control (Exposure Compensation) is not possible.
EOS 750/850: Only Program ATTL is possible.
Canon T90: The following features are disabled:
1. AF Auxiliary Light
2. Aperture Value & Subject Distance Read-outs
3. Automatic Zoom
Canon F-1 (original and current), other T- Series, all A-Series, and older model Canon SLRs: Only Manual Flash is possible. (No automatic flash exposure of any kind.) Refer to Guide Number Chart
Technical SPECIFICATIONS for Canon 430EZ AF Speedlite
Type: Energy-saving, automatic electronic flash unit. ATTL metering system measures light reflected from the film surface. Clip-on type with directly coupled contacts.
Flash Duration: 1.5 milliseconds or less
Flash Coverage Angle: Covers more than the fields of view of 24mm, 28mm, 35mm, 50mm, 70mm, and 80mm using an auto internal zoom mechanism. Manual zooming is also possible.
Bounce Angle: Upward: 0-90 degrees. Left: 0-180 degrees. Right: 0-90 degrees.
AUTO Apertures Between the minimum and maximum aperture of the lens
AUTO Bounce Yes
Colour temperature: Daylight
Flash Exposure level Control: Automatic: 0 to -1.5 EV based on available light, using exclusive Canon program.
Manual: +/-3 EV in 1/3 step increments. Out-of-Coupling-Range Warning: if the subject is too far away, the shutter speed and aperture value blink in the viewfinder and on the camera's external data display when the shutter release is pressed halfway.
Guide Number (9 ISO 100, feet: 116 (w/zoom set at 50mm)
Number of flashes: Approx. 100-700 with alkaline batteries Approx. 45-300 with Ni-Cd batteries
Flash Coupling Range: Rapid-Fire Flash (green ready lamp): 2.3-16.4-45.9 ft. (min-max); Full-Power Flash (red ready lamp): 2.3-62.3 ft. Normal Recycling Time: -Flash Approx. 0.2 to 13 seconds with alkaline batteries. Approx. 0.2 to 6.5 seconds with Ni-Cd batteries Rapid-fire flash: Approx. 0.2 to 1.5 seconds
ISO Range: According to camera
NOTE: A good consideration for investing into Canon photographic system is: Many Canon system accessories have been designed with great compatibility in mind. The older 420EZ can also be used with the EOS-1 as well as the 540EZ designed for the EOS-1N. The new Speedlite 550EX made for the new EOS-3 camera can also be used with the EOS-1.
Download Instruction Manual for Canon 430EZ Part One | Part Two
External power source The Speedlite 430EZ has a choice of external power sources for extended photography sessions. The Transistor Pack E delivers from 300 to 2,000 flashes with alkaline-manganese batteries. (From 250 to 1,500 flashes with Ni-Cd batteries.)
Second Curtain Sync: Available when using on camera in all exposure modes except Program & Depth of -Field AE.
Power Source: 4 "AA" alkaline, Ni-Cd, or carbon-zinc batteries
Dimensions: (WXHXD) 216/16 X413 /16_X4 3 /16(75mmX122mmX106mm)
Weight: 12.7 oz. (365 grams) without batteries.
Flash Photography:- Index Page Part | 2 | 3 | 4 - Canon 540EZ site
Selective Canon TTL Flash Models:- 160E | 200E | 300EZ | 300TL | 420EZ | 430 EZ | 480EG | 540EZ | Macrolite | Other non-TTL Canon flash models
Useful Resources at Julian Loke site: - Instruction Manual(s (PDF) for Canon 420EX | 580EX AF-TTL Speedlites
Suggestive weblink:- Canon Flash Resources at Photonotes.org or Bob Atkin Flash FAQ section
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