I ordered my housing for my A75 Sunday night from securemart.com, standard shipping. It arrived today, INCREDIBLE. Anyway, I've taken it out, put the camera in it, took some pics for fun but I've got a couple of questions. (I know, suprise, gregs got questions, hehehe) The flash diffuser is removeable. Would it be adviseable to use it on close up shots, say a few inches to maybe 2 feet then remove it for longer shots. Or, should I leave it in or out the whole time? Secondly, I was able to easily remove the O-ring by following their instructions. My understanding is that I need to remove the entire O-ring before each dive, use a small amount of grease on the whole thing, then replace it in the groove. I was thinking maybe I could simply spread a small amount of grease on the exposed portion. Which is correct? Thanks to those that know. Greg
Flash diffuser on A75 housing
- Thread starter gt2003
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Col_CCC
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greg,
my girlfriend and i have the same camera and housing. have used it for the past summer on about 100 dives. we leave the flash diffuser in at all times. we try to grease the o-ring everydive, full removal and a LIGHT siliconing. but sometimes it will go two to three dives between greasing. we zip tied a ring to the strap fastening spot to be able to hold onto it. my reccomendation is to get a bungy strap with a fastener on both ends. one goes to the camera and the other always get clipped to your bcd. always test your camera in the water first to look for bubbles. you will find this housing extremely durrable. get good rechargable batteries and a large memory card and have fun taking pictures!
my girlfriend and i have the same camera and housing. have used it for the past summer on about 100 dives. we leave the flash diffuser in at all times. we try to grease the o-ring everydive, full removal and a LIGHT siliconing. but sometimes it will go two to three dives between greasing. we zip tied a ring to the strap fastening spot to be able to hold onto it. my reccomendation is to get a bungy strap with a fastener on both ends. one goes to the camera and the other always get clipped to your bcd. always test your camera in the water first to look for bubbles. you will find this housing extremely durrable. get good rechargable batteries and a large memory card and have fun taking pictures!
I'd leave the diffuser in, too.
As for o-ring maintenance...don't over do it. It does not require more grease each time you open the housing! I don't even remove mine from the groove each time.
And when I do use the grease it is a minute amount only...no globbies, just slick oring. That grease just begs for ickies to stick to it.
Careful inspection for any particles visually and then gently run a finger around the exposed edge. I use just a little wetness (read spit) on my finger to moisten the o-ring before sealing. Again, the key is inspection - obviously if you see something you may have to remove the o-ring. I reinspect after the housing is sealed and again before I hit the water.
Less is more sometimes...each time you remove the oring you risk stretching it so be very careful.
As for o-ring maintenance...don't over do it. It does not require more grease each time you open the housing! I don't even remove mine from the groove each time.
And when I do use the grease it is a minute amount only...no globbies, just slick oring. That grease just begs for ickies to stick to it.
Careful inspection for any particles visually and then gently run a finger around the exposed edge. I use just a little wetness (read spit) on my finger to moisten the o-ring before sealing. Again, the key is inspection - obviously if you see something you may have to remove the o-ring. I reinspect after the housing is sealed and again before I hit the water.
Less is more sometimes...each time you remove the oring you risk stretching it so be very careful.
Don't use the spray! Most sprays have more than just silicone grease in them, and this stuff can damage your o-ring... Check your spray canister but there are usually some additives inside to keep it safe under pressure. It's ok to spray it on most stuff, but not on plain rubber so better check with your manual....
Btw. I have a S45 with a case for 2,5years now, and I have never removed my o-ring from the case. I just put some silicone on the outside, and clean it thoroughly - but dont forget - where I dive, there is not so much sand so it can't get dirty so easy...
Btw. I have a S45 with a case for 2,5years now, and I have never removed my o-ring from the case. I just put some silicone on the outside, and clean it thoroughly - but dont forget - where I dive, there is not so much sand so it can't get dirty so easy...
hvulin:
That's a good tip...the sprays aren't great for camera stuff
Also, many orings aren't rubber anymore, they are silicone. As far as I know, all of the orings for Canon housings (main yellow oring, not the little black ones on the buttons) and Olympus housings (red & blue) are silicone, not rubber. You need to make sure when you purchase grease that it is suitable for silicone o-rings!
Thank you all again. The housing is pretty easy to work with already. I've taken a lot of fun pics around the house just to test it out. The hardest part for me is when the camera is in the housing its more difficult to figure out when I have the shutter depressed halfway. I've found so far that if I can see the redeye light (I think thats what it is) or the focus assist light, not sure which one, that I know the camera is ready to go with very little, if any lag. I've bought the rechargeable batteries and they're incredible. I'm ready to dive, maybe Cozumel in February then off to Utila in May. Can't wait. Thanks for the tips. If you have any ideas on getting used to depressing the shutter halfway while the camera is housed let me know. I'll keep practicing. Thanks again, Greg
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