bvanant

Excellent transaction, smooth and fast. Great seller BVA

But faster with a trigger might not be HSS. HSS is a unique beast with a bunch of very fast weak pulses. I can get to 1/400 in general with triggers, but if HSS is possible with the MF-2 or the AOI RC versions I am too dumb to find it. Cheers Bill

I have a couple of FLM-2 flashes that work with the OM-5. I can part with them quite cheaply. Let me know. Bill

I am not aware of any scientific papers on coral bleaching in Raja other than the study from Indo-Ocean project, Lauren Sparks. They speculate that a major increase in cyanobacteria linked to human sewage. As tourism increases and toilets move ever closer to the water, the filtration of sewage by the soil is greatly decreased. Bill

I think that one approach (I tell this to beginners underwater) is to take your camera to a nice location on land and shoot with the lenses you want to use underwater. Pretend to be Ansel Adams and go shoot some nice wide angle photos. Shoot them at a variety of shutter speeds/ f stops/iso settings (all to get the same exposure more or less). Then take them home and look at full resoultion snippets to see if in fact your camera/lens can generate shots you like. It could be that your particular camera/lens for example has some back focus issues and nothing is sharp. That is an easy fix, but maybe not cheap i.e., a new lens. No underwater photo will ever be as crisp/sharp/nice as one on land (maybe the Nasa tank) so that is a good starting point. I shoot flowers and birds on land with a 20MP OM-1 and routinely print A2 (almost, I print 16 x 20 inches, 400x500 mm) with good results. Once you are sure that the system can make photos that meet your desires then move to UW but with care. Shooting WA with rectilinear lenses can lead to mushy corners but if the center is mushy something is wrong. Mismatched lens/dome can also be an issue. I print the photos for both LAUPS and Orange County UPS for the Long Beach scuba show. I have printed a bunch of A6300 photos of things like whales and sea lions, all of them seem to me at least perfectly acceptable. Bill

great shots BVA

There are a zillion little strobes on ali express that might work, they will be much stronger than any LED trigger. Trying to get the output aligned to the window for the fiber might be the biggest issue. Bill

I can not find any details on the AOI trigger talking to HSS mode. Maybe on the hybrid flash but on the MF-2 it is not clear how to make that work. Any ideas welcome. Bill

Yes indeed. RC mode can be very slow, particularly on BW dives. For BW I like RC mode since you might have very transparent beasts and very reflective beasts within a few minutes, but for transparent things like jellies, the second RC shot (at higher power obviously) can take some time. Bill

Maria: I love your shark photo just the way it is, I was only commenting on the way that the OP's photos were white balanced which is part of the what getting good photos is about. More to the point it is good to know when to "break the rules". I like your anemone even better. Both are sharp enough. Bill

No big bump on my AOI housing (OM-1) and the built-in vacuum and LED trigger work fine. But I am pretty sure that it does not support HSS only Oly RC mode and some TTL. Bill

Well to print A2 (full paper size) on my printers at 360 DPI resolution you need 50 MP. At 240 DPI (not optimal for my taste) you need 22MP more or less. One problem is perception; when you are in the water, your brain fills in a lot of things for you i.e, you ignored the fact that the scene is too blue. If you look at Maria's shark it is in fact too blue, proper white balance to get the white patch on the shark actually white, will show something very different. You talk about only 24 mp and even then it is not sharp. Every camera system is just that, a combination of camera/sensor, lens, housing and port. I don't know what lens you are shooting wide but if every shot is not sharp, it likely isn't the sensor or sensor size. Your third pic illustrates the same issue, your color balance is not very good there it is just too blue. Bill

We were in Raja in January and in the North there was a ton of bleaching of corals and anemones. In the south (Misool) not so much but it was warm (31C) Bill

I am looking for a circular fisheye for an OM-1. The 7-artisans 4 mm looks interesting, has anyone shot it underwater? thanks Bill