Yongnuo YN-622C User Guide

The Other YN-622C User Guide
28/08/2013 Page 22 of 23
E-TTL underexposure or overexposure:
• Suggest enabling wireless flash function when using E-TTL flash mode, and adjust the
position of the flash, use FEC/FEL function, check flash’s effective range.
• It may overexpose when E-TTL and manual flash are used at the same time; the manual
flash suits being used as a backlight.
Can’t disable selected firing groups
With canon cameras, you can only disable group C by selecting "firing group" to A:B. Group A/B is
always fired no matter whether you select "ALL", "A:B", "A:B:C" or disable Wireless function.
Aperture, distance are not displayed on the flash when half pressing the shutter
• Set compatible flash mode/shutter sync with the flash on the transmitter.
Flashes are emitting an unwanted pre-flash
• If the flash’s mode is E-TTL, it will emit a preflash. If the flash’s mode is Manual or Multi, it
won't.
OTHER RESOURCES
Getting the Most from Speedlites
Pt 1 (10 pages), Syl Arena, Canon Europe
http://cpn.canon-europe.com/content/education/technical/getting_the_most_from_speedlites.do
Two excellent books:
Speedliter’s Handbook: Learning to Craft Light with Canon Speedlites, Syl Arena, Peachpit Press
Mastering Canon EOS Flash Photography, N K Guy, Rocky Nook
About Shutters and Syncs
http://photography-on-the.net/forum/showthread.php?p=15603404#post15603404
Large thread on POTN:
http://photography-on-the.net/forum/showthread.php?t=1212530
Yongnuo’s Company Stores
Direct Online: http://en.yongnuo.com.cn/
Ebay: http://stores.ebay.com/hkyongnuophotoequipment
Dan Kinzie’s video review:
http://youtu.be/NTUuFGTHskY
User Manual online:
https://docs.google.com/open?id=0B77OmmGIg0gMYTNTWEhIOXZNYlU
Current version of this document
https://docs.google.com/open?id=0B77OmmGIg0gMVFpqNkpBYXBHajA
Deutshe translation of this document by J. Wahl
https://docs.google.com/open?id=0B__QoUj_xlYSNUpQdnhFbE91LTA

Yongnuo YN-622C Specifications

Power

battery type	2x AA batteries (1.5v Alkaline or 1.2v NiMH)
standby time	60 hours
max safe trigger voltage on hot-shoe centre pin	6 volts

Connectors

canon hot foot	with locking ring and pin
canon hot shoe	for mounting hot-shoe flash
pc-sync screwlock socket	sync out only

Weight and Dimensions

dimensions	90 x 53 x 25mm (39mm incl. hot-foot)
weight	79gm without batteries