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Subal Vacuum Indicator Lights


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#1 seagrant

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Posted 12 June 2019 - 02:55 AM

I don’t know if this is new or not, but it seemed new to me? There was no documentation either which makes me think it’s a recent addition to the Subal ND850 Housing. The airlock is the manual Backscatter Airlock (which is terrific). When I first saw green then red with alarm I kind of freaked and thought it was a short as the new housing hasn't been wet yet. I d never seen a light on at any time with my other Subals over the years (this is my 4th Subal).

 

Consensus is it’s a newer feature, inside mounted near the leak battery. From what I gather it blinks green constantly when pressurized with the Airlock (or whatever system).

 

This is where it gets interesting... when depressurized with the Airlock gauge the red light flashes and an alarm sounds for about 30 seconds. The alarm quiets and the red light continues to flash for about 3 minutes. Looks rather adventurous, say if a couple of these went off at once on the liveaboard camera table? ;-)

 

Seriously though, it’s growing on me. It’s my first leak detection system. I love the Backscatter Airlock. The blinky lights and alarm....., well? What’s life without a little drama? 

 

This is also my first full frame. So far I’m in love! The Nikon 8-15 lens (on sale right now $150 off btw) image quality is completely amazing! I’ll pool test it tonight.

 

I called a few weeks ago to buy Sola focus lights for a blackwater dive and got talked into a new Subal ND850. That was an expensive phone call. It arrived from Europe within a week! Too soon for me as I was out of town, expecting it to take 3 months or something. Anyway it’s great! Buttons are super smooth (my fav part of my Subals since they don’t give my hands/fingers repetitive stress injury). Everything lines up well (it was checked well by Backscatter before it was sent to me). I’ve tweaked a couple of things (there's always something that needs tweaking) but the tweaks are rather minor compared to how overall the housing is fantastic and feels so comfortable to control. I’m in love...!

 

I hope the blinky-light videos embed. Oh, and I’m selling my RED Subal 95% freshwater used ND7100 that fits Nikon 7200 perfectly too. Haven’t had time to list it. Off to dive... Best, Carol

 

So it doesn't look like the code embedded so here are the links. First one is the green vacuum light, second one is after depressurization: 

 

 

<iframe src="https://player.vimeo.com/video/341763624" width="640" height="360" frameborder="0" allow="autoplay; fullscreen" allowfullscreen></iframe>

<iframe src="https://player.vimeo.com/video/341763797" width="640" height="360" frameborder="0" allow="autoplay; fullscreen" allowfullscreen></iframe>

Edited by seagrant, 12 June 2019 - 02:59 AM.


#2 TimG

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Posted 12 June 2019 - 03:57 AM

Interesting!

 

I didn't know Subal were installing leak detectors - although their website now shows the Vivid Sentinel style and I've got one on my Subal ND500.

 

Enjoy the housing! Doncha love those expensive phone calls  :crazy:


Tim
(PADI IDC Staff Instructor and former Dive Manager, KBR Lembeh Straits)
Nikon D500, Nikkors 105mm and 8-15mm, Tokina 10-17mm,  Subal housing

http://www.timsimages.uk
Latest images: http://www.shutterst...lery_id=1940957


#3 seagrant

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Posted 12 June 2019 - 04:24 AM

Interesting!
 
I didn't know Subal were installing leak detectors - although their website now shows the Vivid Sentinel style and I've got one on my Subal ND500.
 
Enjoy the housing! Doncha love those expensive phone calls  :crazy:


Yes! You have to admire someone who, a couple of thousand miles away, can talk you into a whole new housing when I innocently called just to get blackwater lights...😆. But it makes since for me as the dynamic range in the Florida Springs is off the charts and this camera will really be fun to make images with!

We think this vacuum light is a new feature with Subal. I didnt even know Id get it? Possibly it works with different vacuum systems? Maybe our friend Alex Mustard knows more about it?

Carol

#4 TimG

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Posted 12 June 2019 - 04:26 AM

Let's face it, Carol, a new housing is like cat nip: the dealer dangles, teases, suggests....... and reels us in. Everyone goes home happy. 


Tim
(PADI IDC Staff Instructor and former Dive Manager, KBR Lembeh Straits)
Nikon D500, Nikkors 105mm and 8-15mm, Tokina 10-17mm,  Subal housing

http://www.timsimages.uk
Latest images: http://www.shutterst...lery_id=1940957


#5 seagrant

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Posted 15 June 2019 - 02:53 AM

I finally got to pool test the Subal ND850 last night (thundershowers abated).

The green light indicating the housing is pressurized worked perfectly. The slow flashing green light is not obtrusive at all and I found it quite comforting to see all was well. When I depressurized the housing the red light went on and the alarm sounded for 30 seconds, like before. Thats evidently how it works. It looks like it will work with various vacuum systems. It works with the manual Backscatter Airlock.

Hopefully there will be more documentation on this Subal system. Its cool! I just wish I had been informed that it was now a feature. I would not have thought, at first, that it was a short or something.

The housing is excellent underwater, very good build quality. Very much like my other three Subals. Im learning how to program the additional 850 buttons I want to use. Since I change ISO so much with a lot of natural light photography, I really like the way Subal put the ISO on an easy to reach lever above (but a little back from) the sub-command dial. I used the camera setting where I can just engage the ISO lever, let go, and rotate the smooth command dial to the ISO I want with my thumb on my right hand, flip the lever again and there it is! Easy! All done with my small right hand, very smoothly with no hand stress. Ill be using that feature many many times with this housing. And theres lots more.

The sub-command dial isnt as easy to turn as Im used to with my other three Subals Ive had, but I have a feeling this was on purpose for people who bumped it by mistake. I never bumped it by mistake so I like it a little smoother, but it still has a good feel, very precise.

Basically everything is lining up and working just right. The main thing I had to do is I understand the housing came in to Backscatter with the type 4 port opening and I ordered type 3. They switched it out but I had to remove a bit of the port lock on the inside. Backscatter talked me through it over the phone. Believe me, you dont want a port lock with type 3 ports. They dont have notches for it, dont lock type 3 ports and it will just make it miserable and much harder to correctly mount type 3 ports. With that 1/2 of the mechanism removed (I saved it and the pin in case I sell the housing to someone with type 4 ports) the type 3 ports go on smoothly. A port lock isnt really necessary with a vacuum system anyway.

I pool tested it with my 105vr macro port with manual focus. Auto and manual focus worked great. I can already tell this Nikon d850 is a fast-focusing monster! Im extremely pleased.

Hopefully the documentation and communication from Subal will improve. I would have appreciated the vacuum detection system more If I had known something about it beforehand.

Otherwise, all is well so far. I love this camera/housing! Carol

Edited by seagrant, 15 June 2019 - 03:06 AM.