Canon EOS Resources
Additional information relating to CANON EOS620

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Flash Photography

Banging on the successful transformation to TTL OTF flash exposure metering system from auto flash with the T90, the TTL auto flash (remember first Canon TTL flash - MF 300TL ?) system developed by Canon has evolved into its own A-TTL flash system. The AF flash carries many similarities in technical applications from the manual A-TTL and successfully deployed on the AF bodies. Specially designed for use with the EOS 620, multifunction Canon Speedlites 420EZ and 300EZ feature a built-in autofocus auxiliary light function that lets you utilize EOS autofocus in dark situations-or even at night. Flash recycling time is incredibly fast thanks to the newly developed "rapid-fire" system, which recharges the flash in about 1.5 seconds with the 420EZ and about 1 second with the 300EZ. With no delays, you're always ready for that extra-special shot. The flash element itself is driven by an internal unit; as a result, no manual zoom operation is required to adjust the flash coverage angle. (Zoom coverage is 24-80 mm with the 420EZ, and 28-70 mm with the 300EZ.) The guide number for the 420EZ is 35 (ISO 100 -m)/1 16 (ISO 100 -ft.), and that for the 300EZ ~s 28 (ISO 100 -m)/93 (ISO 100 -ft.).

300ezmdm.jpg 420ezmdm.jpg flashillumin.jpg zoomflash.jpg  

A-TTL Automatic Flash A-TTL (Advanced TTL) automatic flash balances both subject and background exposure to assure good results-at any hour of the day or night. The EOS 620 camera and the 420EZ/300EZ flash unit work together to calculate the conditions for each shot. Flash exposure and ambient light are balanced accordingly, so you get great results every time.
Maximum 1/250-Second Sync Speed With the 420EZ or 300EZ attached, the EOS 620's shutter speed can be manually or automatically set anywhere from 1/250 to 30 seconds-meaning you have greater control over your subject and lighting when it comes to flash photography. With the maximum 1/250th of a second sync speed, you get more natural color and lighting.
Second-Curtain Synchronization Both the 420EZ and 300EZ can synchronize the flash discharge either for the first shutter curtain opening or just before the second curtain begins running. Second-curtain flash synchronization is most effective when used with slower shutter speeds, and makes obtaining truly creative flash effects exceptionally easy.

Bounce Flash Capability The 420EZs swivel flash head can be adjusted so that's its not pointed directly at your subject. This allows you to "bounce" the flash for a softer flash effect.
Rapid Firing Flash in the low-power setting, both the 420EZ and 300EZ recharge extra-fast, so you can take better advantage of the built-in motor drive in flash photo situations.
STROBOSCOPIC Flash A special function on the 420EZ lets you set the flash rate from one to five times per second. This means you can take multiple exposure photos that "break down" subject action into a number of separate parts.

Flash Photography:- Part 1 | 2 | 3 | 4 - Canon 540EZ site
Selective Canon TTL Flash Models:- 160E | 200E | 300EZ | 300TL | 420EZ | 430 EZ | 480EG | 540EZ | Macrolites | Other non-TTL Canon flash models
Others:
| Canon RS-60E3 Remote Switch | Canon RC-1 Remote Control | Canon RC-2 Remote Controller | Canon TC-80N3 Timer Remote Controller |

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Type: Energy-saving, automatic, electronic flash unit using A-TTL metering system to measure light reflected from the film surface. Clip-on type with directly coupled contacts. For exclusive use with EOS cameras.
Guide Number Table
(at ISO 100)
Flashtable.gif
(The above figures in parentheses indicate the guide numbers in feet at ISO 100.)
Flash Coverage Angle: Covers more than the fields of view of 24mm, 28mm, 35mm, 50mm, 70mm and 80mm using auto internal zoom mechanism. Manual switch over possible.
Recycling Time:
FlashtableA.gif
Based on the interval between flash firing and pilot lamp relighting with new alkaline or fully charged Ni-Cd batteries. (Figures on the left in each column show recycling time for A-TTL mode, and on the right for Manual 1/1 mode.
Number of Flashes:
FlashtableB.gif
Based on flash firing at 30 sec intervals with new alkaline or fully-charged Ni-Cd batteries.
(The figures on the left in each column show flashes for Manual 1/1 mode, and on the right for A-TTL mode.)
Flash Duration: 1.5 msec or less
X-sync Shutter Speed:
FlashtableC.gif

Flash Control System: TTL series control system with preflash function.
Flash Exposure Level Control: A maximum of 1.5 BV steps in the A-TTL mode when subject brightness is more than BV5 according to the camera's metering system.
Film Speed Setting: Automatically set by the camera.
Automatic Shooting Distance Range:
FlashtableE.gif
Based on EF 50mm f/1.8 lens at ISO 100. (The automatic shooting distance range extends according to film speed.)
Out-of-Coupling Range Warning: If subject is too far away, the shutter speed and the aperture value blink in the viewfinder at the first stroke of the shutter button. If subject is too close, the distance display blinks.
Bounce Angle: Upward-0-90
° (click-stop positions at 0, 60, 75, 90)
Left-0-180
° (click-stop positions at 0, 60, 75, 90, 120, 150, 180)
Right-0-90
° (click-stop positions at 0, 60, 75, 90)
AF Auxiliary Light: Ultra-bright red LED (peak sensitivity: 700nm). Projected at subject for AF flash photography. The effective distance is approx. 0.9-8m (3-26.2 ft.)
Save-Energy Function: Power automatically turns off after five minutes of non-use when the main switch is left on.
Ready Lamp: As soon as it glows, the camera automatically switches to flash mode. Yellow-green in the rapid-fire flash status; when sufficiently charged, the colour turns to red. Test firing is possible by pressing the ready lamp after flash charge completion.
Power Source: Four size-AA (LR6) alkaline or Ni-Cd batteries. Carbon-zinc batteries may also be used.
Dimensions: 75mm(W) x 122mm(H) x 106(D)mm (2-15/16" x 4-13/16" x 4-3/16")
Weight: 350g (12-3/8 oz.) without batteries, 450g (15-7/8 oz.) with batteries

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Type: Energy-saving, automatic, electronic flash unit using A-TTL metering system ,o measure light reflected from the film surface. Clip-on type with directly coupled contacts. For exclusive use with EOS cameras.
Guide Number Table (at ISO 100):
300EZ1.gif
(The above figures in parentheses indicate the guide numbers in feet at ISO 100.) Flash Coverage Angle: Covers more than the fields of view of 28mm, 35mm, 50mm and 70mm using auto internal zoom mechanism.
Recycling Time:
300EZ2.gif

Number of Flashes:
300EZ2.gif

Based on flash firing at 30 sec intervals with new alkaline or fully charged Ni-Cd batteries.
Flash Duration: 1 msec or less
X-sync Shutter Speed:
300EZ5.gif

Flash Control System: TTL series control system with preflash function.
Flash Exposure Level Control: A maximum of 1.5 EV steps in the A-TTL mode when subject brightness is more than BV5 according to the camera's metering system.
Film Speed Setting: Automatically set by the camera.
Automatic Shooting Distance Range:
300EZ6.gif
Based on EF 50mm f/1.8 lens at ISO 100. (The automatic shooting distance range extends according to film speed.)
Out-of -Coupling Range Warning: If a subject is too far away, the shutter speed and the aperture value blink in the viewfinder at the first stroke of the
shutter button.
AF Auxiliary Light: Ultra-bright red LED (peak sensitivity: 700nm). Projected at subject for AF flash photography. The effective distance is approx. 0.9-6m
- 3 -19.7 ft.)
Save-Energy Function: Power automatically turns off after five minutes of non-use when the main switch is left on.
Ready Lamp: As soon as it glows, the camera automatically switches to flash mode. Yellow-green in the rapid-fire flash status; when sufficiently charged, the
color turns to red. Test firing is possible by pressing the ready lamp after flash charge completion.
Power Source: Four size-AA (LR6) alkaline or Ni-Cd batteries. Carbon-zinc batteries may also be used.
Dimensions: 66mm (W) x 89mm (H) x 100.5(D)mm (2-5/8" x 3-1/2 " x 3-15/16")
Weight: 215g (7-9/16 oz.) without batteries, 315g (11-1/8 oz.) with batteries
NOTE: All data based on Canon's Standard Test Method.

| Back to Index Page of Canon EOS 620 |
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Technical Specifications of EOS 620
Main Reference Map of EOS 620
| Instruction Manual for EOS620/650 - External Link |

Additional information on other EOS AF-SLR Models:
EOS-650 (1987.2) | EOS-620 (1987.5) | EOS-750QD (1988.10) | EOS-850QD (1988.10) | EOS-630QD (1989.4) | EOS-1 (1989.9) | EOS-RT (1989.10) | EOS-700QD (1990.3) | EOS-10S QD (1990.3) | Canon T-60 | EOS-1000F /RebelS QD (1990.9) | EOS-100 / Elan QD (1991.9) | Canon EF-M (1991.9) | EOS-5/A2E QD (1992.10) | EOS-1000FN /Rebel S II QD (1992.4) | EOS-500 / Rebel XS / KISS (1993.10) | EOS-1n (1994.9) | EOS-888/5000QD (1995.1) | EOS-1n RS (1995.3) | EOS-50/50E / Elan II(E) /EOS 55 (1995.9) | EOS -500N / Rebel G / KISS II (1996.9) | EOS-IX (1996.10) / EOS-IX Lite /IX-7 (1996.3) | EOS-3 (1998.11) | EOS-88/3000 (1999.3) | EOS-300 / Rebel 2000 QD / KISS III (1999.4) | EOS-1v (2000.3) | EOS-30 / EOS-7 / EOS Elan 7E (2000.10) | EOS-3000N /EOS-66 / Rebel XS-N (2002.2) | EOS-300V / Rebel Ti / KISS V (2002.9) | EOS 3000V / Rebel K2 / KISS Lite (2003.9)

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