Problem with Canon 450d and light set-up

rbrown74

rbrown74

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Rick
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As per title - I bought a second hand Portaflash unit a couple of months back and have used it about 3 times. All worked well on those occasions but this time when setting it up I couldnt get the flash to fire, unless I popped the cameras flash as well, which I didnt have to do any other time (I think!). :shrug:

I use a cable attached to a hotshoe adaptor and the light fires when I press a wee button on the adaptor and also when my Canon's built-in flash is up, so I know the cable is ok, but why won't it fire without my flash up? What have I missed this time round that I did last time?!? :thinking:

Ended up borrowing my father's Olympus E410 which worked first time!!

Any suggestions? :help:
 
when the pop up is up the porta is optically slaving

so with the hot shoe - pc adaptor it works on the oly but not on the canon ?

thats odd - you get points for a wierd query :D

not anything in the menu's about external flash being disabled (can't remember the tab but I can tell you where on a 50d when I get home)

<actually stroking beard>

can you fire a canopn speedlight ok, could it be a hotshoe issue on the canon? (clutching at straws here) I'll have a little think and see if I can come up with anything
 
david1701 said:
when the pop up is up the porta is optically slaving
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Ah right - didnt know it even had an optical slave! (No manual came with it!)

so with the hot shoe - pc adaptor it works on the oly but not on the canon ?
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Yep, works fine, and like I said, worked fine previously with my Canon


not anything in the menu's about external flash being disabled (can't remember the tab but I can tell you where on a 50d when I get home)
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Aye, theres a menu for external flash setting but it doesnt recognise that anything is attached - cant remember the specific message it gives but its not different than previous times anyway. :shrug:

can you fire a canopn speedlight ok, could it be a hotshoe issue on the canon? (clutching at straws here) I'll have a little think and see if I can come up with anything
Click to expand...

I only have a cheapy Jessops 400AFC which has a mind of its own (only really good for manual use) but it fires fine from the hotshoe. only got it recently and only used it a couple times and then used the studio lights again last night so i dont know if the jessops flash could have altered something? (also clutching at straws!!:D)

Thanks for the suggestions though. Considering a wireless trigger to see if that works a bit more reliably.
 
rbrown74 said:
Aye, theres a menu for external flash setting but it doesnt recognise that anything is attached - cant remember the specific message it gives but its not different than previous times anyway. :shrug:

oh ok you got that sorted then

I only have a cheapy Jessops 400AFC which has a mind of its own (only really good for manual use) but it fires fine from the hotshoe. only got it recently and only used it a couple times and then used the studio lights again last night so i dont know if the jessops flash could have altered something? (also clutching at straws!!:D)

right so if that fires then theres no reason the adapter shouldn't fire, but if the porta goes off when the test button gets pressed then it has to be the connection between the adapter and the camera - might be worth trying a different adapter - maybe this one dislikes canon
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Was thinking the same - Have ordered a wireless trigger instead to see if that is more reliable. Thanks for the help! :thumbs: Must remember to come back to this thread and let you know the outcome!
 
Went for the RF-602's which people seem to be giving very good reports about so watch this space!

Thanks again for the help. Hopefully I'll be up and running again now :thumbs:
 
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