Everything posted by bvanant
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shooting nudibranches with a black background - help
It is tough to be in the moral minority here, but I dive with a bunch or real nudi nerds and will occasionally move a nudi to a purpose built stage. A lot of folks seem to want to protect all sea creatures; to do that we should not get on jet airplanes and fly 10,000 miles (300,000 kg/CO2) or go on liveaboards that use palm biodiesel (cut down forests to make oil), or go on small dive boats with 2 cycle engines. As for nudibranch fragility, some might be but many are clearly not. Much of what we know about neuroethology has been learned by running nudibranchs in Marine Biology labs where they are handled extensively throughout their lives with no apparent issues. For me I think that I am trying hard not to harass (but I have no idea what that actually means) them. Mostly I let them crawl onto a wooden satay stick. They like that texture then I let them crawl off the stick and onto a stage. Take some photos, then reverse the process and put them back where they were more or less. I suppose I could try the Wayne Gretzky approach and try to put them back where they would have been if I didn't take their photos. David Doubilet had a cover of Nat Geo with nudibranchs on a complex stage that probably introduced nudibranchs to an order of magnitude more people than had ever seen one diving. I know the folks who ran that (Graham Abbott was one) and they were extraordinarily careful to put them back where they got them. In any case, we all have ethical boundaries; I won't do fed shark dives, but I do test our medical products in animals to make sure they are safe for patients. Cheers Bill
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AOI OM Octo housing vac issue
Seems suspicious that a brand new housing would get charged for fixing a problem that should be under warranty. I thought that the warranty was 1 year. Bill
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AOI OM Octo housing vac issue
I think that a flood from a dirty o-ring is NOT a plastic housing problem, but rather a universal problem that would most likely be a problem for any kind of housing. I think that over reliance on a "green" light might eventually lead to as many problems as the vacuum system has prevented. Bill
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OM System Cameras
I have more than 1K dives now on my AOI housing with minimal issues, and my wife who shoots video (www.blueviews.net) has now moved to an OM-1 mark II (i get the old one) in an AOI housing. So far so good. I have ordered a 45 finder from the guy in Europe, should be here in a few days, will let you know how it works Bill
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AOI OM Octo housing vac issue
Sorry to hear this. All I can say is that after more than 1K dives my AOI/OM1 is still dry. I think that I have had 2 cases where it went red during a dive but never let water in. I attribute this to an overly sensitive temperature compensation on the vacuum hardware. Bill
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Adobe suite cloned
Nice first pass, but NO raw input capability yet. Subject detection is terrible at least for my stuff. I would really like a Lightroom classic version but that might be too tough. Bill
- jorunna.jpg
- socal 10.jpg
- aniopel.jpg
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Looking for underwater photos to experiment with image processing
Just uploaded some files from a dive here in SoCal on Saturday. Bill
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OM 1 users
Or just get a real ND filter and put it on a flip adapter. Bill
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Looking for underwater photos to experiment with image processing
I have lots of bad photos 🤪 that I would be happy to share along with a few good ones. Let me know what you want and where to send them. thanks Bill
- flatty.jpg
- wormy.jpg
- bw pipe.jpg
- stripers.jpg
- female blue.jpg
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1/500 sync on OM-1 ?
I can get to 1/400 with not much issue (occasional black stripe), haven't tried 1/500 with AOI trigger
- nudi 7.jpg
- medusa.jpg
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Do reduction rings increase light intensity?
The reflector is acting kind of like a lens, so that is not a surprise. The material of the reflector probably is not as important as the surface polish/ reflectivity.
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Do reduction rings increase light intensity?
If there are no optics (lenses etc.) involved it is hard to believe that the reduction rings create photons
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How important is an auto-off function in a focus light in practice?
I think we were talking about a separate focus light going off when the strobe flashed, not the video light on for example the HF
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Various AOI / Olympus Items incl wet wide lens, +12 diopter, quick release system, 60mm macro lens
bvanant commented on cashmorephoto's the listing in in Marketplace - Trays, Arms & Clamps, Other / Accessories Ports & Port Extensions
For Sale $1,500.00 Honolulu, HIThe AOI UWL lens, where is the scratch?
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How important is an auto-off function in a focus light in practice?
My take is that it is not visible in 90+ percent of all shots. I have used the Fix Neo with NO auto off and the S&S version of the same light with auto off and can't see a difference.