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Barmaglot

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Barmaglot last won the day on September 20

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About Barmaglot

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  1. I've exchanged messages with SeaFrogs support about this, and their rationale for not diving with housing under vacuum is that the increased pressure gradient reduces the housing's maximum operating depth. Since I don't dive past 30 meters, this is irrelevant for my use case, and I always dive with the vacuum valve attached and active. One thing that should be noted is that if you pump it just to the point where it starts flashing green, you will likely have it start flashing red at depth - my best guess is that the main o-ring compresses under pressure, the front and back halves of the housing get squeezed closer together, the internal volume shrinks and the air pressure inside rises correspondingly. Having the indicator suddenly start flashing red mid-dive is quite disconcerting, so I make sure to give it a dozen extra pumps after it turns green to avoid that.
  2. I'm not aware of any cameras with an onboard flash capable of HSS, so I'm guessing that a trigger will be mandatory. On my Sony A6300, shutter speed is restricted to 1/160 whenever the flash is up. However, Pavel has posted a while ago that UW-Technics converters will support the Retra HSS mode.
  3. For what it's worth, I've been using an A6300 in SeaFrogs housings for over two years now without issues. First this one, which I have since sold, and since mid-2018, this one, which has been through close to a hundred dives already and hasn't given me any trouble. The quality on Meikon's new housings released in the past couple years (Salted Line series, A7 NG series) has improved significantly from their older offerings.
  4. I've put close to a hundred dives on my A6xxx Salted Line housing over the past year without any significant issues. The zoom gear for 10-18mm f/4 lens is fiddly to set up, but reliable when properly positioned. I did have a problem with left strobe not firing properly (the fiber optic ports are slightly offset from the camera flash and use a reflector to guide the light) but switching to multicore fiber optic cables (from Nitescuba on Aliexpress) resolved that completely - I'm 40 dives into my current trip with zero strobe troubles.
  5. Capture One Express is free for Sony and Fuji users.
  6. For corals, I would suggest Dumaguete - it gives you access to Dauin coast, as well as Apo Island, Siquijor and Sumilon via day boats.
  7. You may be disappointed if you try shooting that combination wide open. I use a 10-18mm on an A6300, SeaFrogs housing with 8" dome port, and at f/8 the corners are still pretty soft.
  8. There are less and less compact cameras in general, phones have taken over that slice of the market - and incidentally, phone housings (Weefine Smart Housing et al) are becoming more common. The basic compact (Canon S-series) is dead completely, and premium compacts (RX100 series, G5X, G7X) are priced out of many people's reach. Port systems for compacts are still quite rare though, it's only RX100 M6/M7 that needs one. IIRC Nauticam made a basic port system for G7X II some time ago, but that camera functions fine with a fixed port.
  9. I just came off a liveaboard in the Philippines. Between sixteen divers, mine was the only ILC (Sony A6300 in a SeaFrogs housing); two carried RX100s in Sony housings without lights (one had a GoPro on top), one had an RX100M1 in a RecSea housing with twin YS-01s and a separate Panasonic compact in a Polaroid housing on a stick for macro video, one had an S-series Canon with a single YS-01 STROBE, and another 4-5 had GoPros on small handles - no tray-mounted rigs with lights; just hand-held torches at most. This lines up pretty well with the poll results, if you account for people shooting GoPros in ambient light not even knowing about wetpixel, much less posting here. Regarding polycarbonate - Ikelite is still alive and kicking. Fantasea is quite popular too.
  10. I know Sony sells a housing for RX100 series cameras (models I through V), but this is the first time I hear about an A7 II series housing from them - mind sharing a link? To the best of my knowledge, SeaFrogs is the most affordable underwater option for this camera, though it does come with some limitations - the port system is much less comprehensive than those offered by the premium housing manufacturers, there aren't nearly as many additional accessories that you can mount on it (no possibility of an external monitor or viewfinder, for example), and the lens support is considerably more limited, but it comes at a small fraction of the cost of something like Nauticam or Subal.
  11. Sigma 16mm is a rectilinear lens (and so is the Sony 16mm without converter), so you will need a much bigger dome. 4.33" is basically for fisheyes only.
  12. Playing ping pong with a full-size tennis racquet?
  13. I would stick with the RX100. A 16-35 on a D850 will require a huge dome for good performance, so it will be very cumbersome, especially if you freedive with it rather than just snorkel on the surface - and with a lens that wide, you will need to freedive to get close to stuff.
  14. I have tested various lenses in different Meikon ports, including Sony 10-18mm (15-27mm equivalent) behind a flat port; you can see here how bad it gets. There is no avoiding a dome if you want to shoot wide-angle - just gotta be careful. I always keep the neoprene cover on my dome until after I've descended and equalized, and put it back on at safety stop.
  15. Even if it fits physically, shooting 16mm through flat glass underwater will produce extreme distortion.
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