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| p.1 #11 · p.1 #11 · Review of Yongnuo RF-602 remote flash trigger / shutter release |
have you tired new batteries? when the receiver batteries are low they wont always fire, but they will display the red/green led to indicate signal.
I have about 8 sets of these. not a miss so far, but I did manage to kill one of the cables.
I use them to trigger all sorts of old and new speedlights, bees, and remote shutter on many different bodies (1d,1ds,1ds2,1ds3,1d3,5d,5d2,7d,450d,10d)
perhaps try another channel?
does the hot shoe function normally? if so, perhaps the issue is with the cable or socket. it can be difficult to secure the cable into the receiver with its little twist lock.
one thing I noticed is that channels can bleed into each other if your using a few channels at once.
and if it works with the lens in MF, it seems that the issue is with the camera body, the studio lamp could be another issue.
fyi, the body will not autofocus with back-button af on. I know you don't use back-button, but just for testing info.