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SPECIFICATIONS OF 540EZ MAIN UNIT
1. 1 Type:- Direct- connection contact clip-on type TTL auto exposure flash unit (with AF auxiliary light compatible with 5-point focusing, A-TTL preflash, auto zoom, and bounce mechanism)
1.2 Compatible cameras:- All EOS series models
2. Guide number
2.1 Normal full power
2.2 Quick firing The same as manual firing at 1/2 to 1/16 power.
2.3 Manual firing
Various G.No during MANUAL burst (Lab)
3/4. No. of firings (Built-in power source; External power source)
Recycle Time (sec.)
No. of firings (times in A-TTL mode)
Built-in power source
AA-size dry batteries (LR6)
0.2 - approx. 2
AA-size Ni-Cd batteries
0.2 - approx. 1.5
External power source
C-size dry batteries (LR14)
Ni-Cd Pack TP
Compact BP-E (LR6)
0.2 -approx. 1.5
Power pack Battery used Laminated Pack E 1 x 0210 type 315V laminated battery Transistor Pack E 6 x C-size alkaline-manganese batteries 6 x C-size Ni-Cd batteries Ni-Cd battery pack Compact Battery Pack E AA-size alkaline-manganese batteries x 6 AA-size Ni-Cd batteries x 6 (AA-*size lithium batteries x 6) (2) External power source The following external power sources for the 430EZ System can be used without modification.
5. Illumination angle
5.1 Zoom system via condenser lens fixed/inner zoom (internal flash head unit drive system) and built-in wide diffuser panel.
5.2 Zoom methods (a) Auto zoom Automatically set with the camera SW-1 ON, coupled with the focal length information from the lens. (b) Manual zoom The zoom position is switched in sequence by operating a push switch. (c) Wide diffuser panel When the built-in wide panel is set to MANUAL, the zoom position is automatically set to the 28 mm position to cover the angle of view of a EF 20mm lens.
5.3 Zoom stop positions Seven positions: 24 turn, 28 mm, 35 mm, 50 mm, 70 mm, 80 mm, and 105 mm When set to a bounce position in auto zoom mode 5.2 (1), the zoom position is automatically set to the 50mm position.
5.4 Zooming speed Approx. 0.8 sec (at normal temperature)
5.5 Setting position display Digital numeric display on LCD
6.1 Direction of bounce
Angle of coverage
Click Stop Positions
0°, 60°, 75°, 90°
0°, 60°, 75°, 90°, 120°, 150°, 180°
0°, 60°, 75°, 90°
6.2 Bounce lock Locks at the upward/downward and left / right 0' positions, and at the upper 90' position
6.3 Preflash In A-TTL or bounce mode, the main flash head emits a preflash.
6.4 Bounce display When set to a bounce position, the bounce mark is displayed on the display panel.
7. Control system
7.1 Firing modes
(a) Normal firing (pilot lamp: Lights red when flash is ready to fire)
(b) Quick firing (pilot lamp: Lights yellow-green when flash is ready to fire.) This mode keeps the recycle time at or below 2 seconds. Both the built-in power source and external power source can be used except in the following conditions.
Quick firing inhibit conditions i) When the camera's film transport mode is set to continuous exposure mode. ii) TTL auto flash control mode * When the camera is set to manual exposure mode * When using the TTL hot shoe adapter; iii) During manual firing at 1/1, 1/2
(c) Multi-firing The multi-firing function is activated when the X contact is turned ON in the charge complete status, performs multi-firing at the set frequency (I to 100 Hz), and stops firing when the X contact goes OFF, at the end of the set firing count (I to 100 times), or at the end of the charge complete status..When this mode is selected, the quantity of light is set to the initial value of 1/16 power, and can be changed by operating the up/down button. However, it cannot be set to 1/1 or 1/2.
i) Settable frequency (31 steps) 1 - 20 Hz in I Hz steps; 25 - 50 Hz in 5 Hz steps; 60 to 100 Hz in 10 Hz steps.
ii) Settable firing count (31 steps) 1 - 20 times in I-step increments; 25 - 50 times in 5-step increments, 60 - 100 times in 10-step increments Note: -If the firing count is not set, a hyphen is displayed in the LCD panel. Continuous firing is performed when the X contact is turned ON. The firing is stopped in the following conditions.
* X-contact OFF ** End of charge complete status *** Firing limitation of " " " " times
iii) Limitations on combinations of firing frequency and firing count. At each combination, a firing count exceeding the values shown in the following table cannot be set.
Note: -Preflash For A-TTL distance information detection during bounce flash operation (At the normal position without bounce, the dedicated emission unit is used.)
Test flash- Test flash can be performed by the test flash button (which also functions as a pilot lamp). A-TTL or TTL mode: Full power Manual or multi-firing mode: Flash output according to the set power setting However, test flash is impossible when the camera's metering timer is ON.
7.2 Flash control aperture value setting (: Setting factor)
Camera exposure mode AV setting EOS body metering 540EZ preflash 1. Shutter-priority AE Auto - 2. Aperture-priority AE Manual - - 3. Program AE (full) Auto 4. Manual Manual - -
7.3 Synchronous shutter speed setting (EOS-1N)
Camera exposure mode TV setting
Camera exposure mode TV setting Synchronous speed range 1. Shutter-priority AE Manual Optional setting under 2SO 2. Aperture-priority AE Auto 250 - 30 3. Program AE (full) Auto 250-60 4. Manual Manual setting of 250 or lower
* The maximum synchronous shutter speed conforms to the X-sync time of the EOS body in use,
7.4 Exposure control modes (1) A-TTL auto flash control; (2) TTL auto flash control (when the camera is in manual mode); (3) Manual
7.5 Flash exposure control system TTL auto flash control by EOS body control and off-the-film reflection metering
7.6 Flash exposure check OK: After shooting, the flash exposure check lamp (green) turns on for about 2 seconds. NG: The above lamp does not turn on.
7.7 Flash exposure compensation (1) Auto Daylight fill-in flash and auto reduction control for high brightness controlled by each EOS body. (2) Manual compensation by operating the 540F-Z Manual compensation in the range of ±3 stops in 1/3-stop increments (When the shooting mode of the camera is not in the full auto mode, the auto flash exposure level is compensated.) (3) Manual compensation by operating the EOS-1N or EOS5 Electronic dial operation on the body. When items (2) and (3) are simultaneously set, item (2) has priority.
7.7 Flash output coupling range (1) A-TTL normal firing: (50/1.4 ISO 100) 1 0.5 to 30 m (2) A-TTL low-voltage firing: 0.5 to 7.5 na (min) to 21 in (max)
7.8 Coupling range display Display in the LCD panel.
8. Display 8.1 LCD display
(1) Zoom position (A hyphen is displayed when the flash head is in a bounce position.)
(2) Manual zoom mark
(3) Flash aperture value
(4) TTL auto flash mode (A-TTL, TTL)
(5) TTL flash coupling distance range (numeric bar display)
(6) Manual firing mode
(7) Manual output level
(8) Manual correct distance (numeric bar display)
(9) Multi-firing mode
(10) Multi-firing frequency (Hz)
(11) Multi-firing frequency
(12) Second curtain sync setting
(13) Bounce mark
(14) Catch light reflector setting
(15) Flash exposure compensation mark
(16) Hash exposure compensation value For the values of (5) and (9), the user can select between m and ft displays. This selection is made by operating a select switch in the battery holder.
8.2 Charge complete display (1) Normal charge complete display: The red pilot lamp (LED) comes on. (Full charge - I step) (2) Quick charge complete display: The yellowish green pilot lamp (LED) comes on. (Full charge - 4 steps)
8.3 Display unit illumination Full-surface uniform transmission illumination (yellowish green) for the LCD panel is incorporated. The lamp comes on for 8 seconds when the illumination button is pressed. (When this button is pressed in the lamp ON status, the lamp goes out.)
9. Synchro timing Either first curtain sync or second curtain sync can be selected.
10. Flash duration Full power: 1.2 ms or less Quick firing: 2.3 ins or less
11. Color temperature Equivalent to daylight-
12. Film speed ISO 6 to 6400. Setting is not required because it is under the control of the camera. The flash coupling distance range is shifted in proportion to the film speed.
13. AF auxiliary light 13.1 Light source Red super-high luminance LED (2 LEDs) 13.2 Pattern Stripe compatible with 5-point focusing system (center: vertical, left/right: horizontal) 13.3 Effective distance range 11 11 41 11 to 11 11 41 11 m (in low-light conditions)
14. Power switch Three-step slide switch: OFF (0 mark), ON ( I mark) and SE (Save Energy).
ON: Always ON without SE.
SE: When the switch is left in the ON status, the power is automatically turned off in about 90 seconds. As soon as *the SE function is activated, the LED goes out (the set mode is stored in memory). The power is turned on again by pressing the shutter button of the camera to the first step or pressing the test flash button. (Compatible with flash photography when using the interval timer function of the Technical Back E.)
15. Power source (1) Built-in power source AA-size alkaline-manganese batteries LR6 (AM-3) X 4 - 6 V AA-size Ni-Cd batteries can be used. * AA-size lithium batteries can be used. (2) External power source (Item 0 is used with the Compact Battery Pack E, item @ is used with the Laminated Pack E315, and items (D and @ are used with the Transistor Pack E.) AA-size alkaline-manganese batteries LR6 (AM-3) x 6 - 9 V Laminated battery (0210 type 315V) Battery magazine TP (C-size alkaline manganese dry battery LR14 (AM-2) x 6 - 9 V) Ni-Cd pack TP (NR-SC Ni-Cd battery x 6 enclosed pack)
16. Connectors (1) Camera connector 1) Fixed accessory shoe screw lock type with a lock screw tightening coupled lock pin The lock pin protrudes 1.6 mm by the spring force coupled with tightening. 2) Synchro terminal: Direct -coupled type 6-pin contact (2) External power source connector Dedicated 3-pin socket.
17. Dimensions 80 (W) x 138 (H) x 112 (D) mm / 3-1/8 (W) x 5-7/16 (H) x 4-7/16 (D) in
18. Weight JE 415 g / 14.5 oz without battery (when LR6 batteries are loaded, the weight increases by 100 g / 3.5 oz.)
Canon 540EZ system Flash:- Part one | two
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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