420ex or sigma 500 DG Super

[allenng]

is that a common problem or all the set have. Mine dun seems to have this problem.

 

[ray_stinger]

is that a common problem or all the set have. Mine dun seems to have this problem.

i also have this prob..

 

[Vulpix0r]

Mine also no such problem?

 

[user111]

get the 420ex. just mount, turn on, fire and forget.