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I have 2 inon z240's which i bought exactly 1 year ago, brand new. I have a canon 5d mkiii, ikelite housing and so always shoot in manual and with the pre-flash button pushed in on the strobe. Just the other day i was out shooting and noticed that one of my strobes seemed to be stuck on low power and no matter what i changed on the manual power setting it was giving the same low output. I exited the water and had a look at the sync cables and battery compartment for water ingress but nothing at all. I noticed when i switched the strobe setting to S-TTL i could get a full power flash output but when back on manual i could not adjust it again. This is showing the exact same symptoms as when the pre-flash button is not locked in. So onwards to that evening where i do some research online and notice a lot of people getting this same issue and the culprit seems to be the magnet in the pre-flash button corroding therefore not engaging the switch inside the inon strobe unit. I went ahead and removed the button only to notice the magnet is completely intact, not surprising considering it's less than a year old. So the problem must be inside... maybe a sticky or faulty switch... such as you get on a car relay sometimes in which the solution is often to tap it with something. As a last ditch attempt at getting my beloved strobe back to working order i pushed in the Pre-Flash button and tapped the side of the strobe with my multi tool and bingo it's working perfectly again. I presume as long as i don't let the switch out then it should keep the switch engaged and i can continue shooting for now. I am currently working in Tonga and getting things shipped to and from here is extremely impractical therefore i will probably continue using the strobe for now as long as it holds up. However has anyone else had this issue as i can't find anything else online about it.... Any input would be much appreciated!
Hey Guys, So i have an canon 5d mkiii in Ikelite housing with 2x inon z240's and ikelite electrical sync cable. Up until recently everything was working fine but on the last couple of outings i have assembled the equipment done a couple test shots and everything works. I get in the water and then strobes stop firing. Now it's strange but if i shake the housing up and down or turn it upside down then the strobes will work again for one or two shots or until i turn it the right way up. Back on dry land sometimes it will continue to intermittently function so while this has been happening i have tested my standard speedlight unit directly on camera and it fires everytime. I have tried firing the strobes manually using a paper clip on the ikelite hot shoe connection and again they seem to fire everytime... I have cleaned the hotshoe on camera and ikelite housing connection. Strobes were bought brand new 3 months ago and they both stop firing at the same time so i doubt it's an issue with them. I would have said the sync cable or something in the housing electronics but to me there is no completely obvious conclusion? If any of you out there could shed any light on the issue it would be greatly appreciated! Cheers, Grant