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PeteAtkinson

Member Since 25 Nov 2008
Offline Last Active Sep 24 2018 05:11 AM
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Topics I've Started

An extra hole for a Nauticam housing...

20 September 2018 - 07:27 AM

I needed an extra hole for a radio flash trigger cable in my D800 housing. I trigger two Inon Z240s with optical cables but the single flash bulkhead is filled with a Leak Sentinel. I figured I don't really need the control which changes metering from matrix, centre-weighted and spot, so maybe I could use that as a cable entry? But then you run into the problem of running a cable from the back of the housing to the camera in the front. Which is tricky. But the Leak Sentinel can be anywhere in the housing... The metering control gland has a 10mm coarse thread on it.

Remove the control by levering off the plastic disk on top of the control knob which exposes an Allen head machine screw. Remove this, and the knob. If you now remove the gland using circlip pliers, you will be able to remove the control rod inside without removing any of the adjacent control which otherwise gets in the way.
I had an old Leak Sentinel and took this and a 10mm coarse thread hex machine screw to a local workshop. They cut an o-ring groove under the head of the bolt, rounded it off, cut the part from the Leak Sentinet the right length  (12mm) and welded the bits together. A hole drilled through the bolt allows the housing to be evacuated through this fitting. It cost ten quid. 
I had an old Nikonos socket with the 16mm thread that screws directly into the bulkead hole in the front part of the housing and this is where I will wire a coil cable with a floating box with a radio trigger for topside flashes. Inside the housing I will have a cable running to the hotshoe or the X-sync socket of the camera.

 

The Leak Sentinel seems fine in the new position but the fitting could have been made a bit shorter without the Leak Sentinel interefering with the housing. 


Zen 170 and Athena 170 domes compared

10 March 2018 - 11:42 PM

Travelling with the Nauticam 230 dome is a pain. The 6" cast acrylic Ritchie dome I made is not as good but can be used with Sigma 15 and Nikon 18mm without extension. I am considering a 170 dome. Anyone compared the Zen and Athena domes? I would be using it with the 15mm Sigma (with compromised placement since the 170 is not a hemisphere, but fisheye's are forgiving) and a wide rectilinear, probably 18mm Nikon. If and when I return to crop-sensor from a D800 I will use the Tokina 10-17 with it.

Thoughts?


Nikon command dials need waking with a tap on shutter.

28 November 2017 - 04:45 PM

Info for Nikon D750, D800, 810, 850 owners... I was always irritated by having to dab the shutter release to activate the command dials to change shutter speed and aperture. Matija Kljunak on the D850 Facebook page came up with a solution I didn't know about, namely:

 

"The solution was in custom settings. Using this setting the problem went away and now I can change the aperture immediately after shooting:

Custom Settings>Controls>f4 Customise Command Dials>Menus and Playback>On(Image review excluded)."

 

On the D800 it's f9 and the D750 it's f5.


WTB flooded/unrepairable Nikonos RS 13mm fisheye

26 November 2017 - 11:03 PM

Anyone got a 13mm paperweight they would part with for a modest sum? I have an experiment I'd like to try with some 13mm bits.


Sony full-frame with Nikonos 15mm - thoughts?

17 November 2017 - 06:50 PM

I don't shoot macro and currently lug around a Nauticam D800 housing -which is great, but big. Rectilinear wide interests me much more than fisheye. Has anyone been using a Nauticam A7 housing with the Nikonos 15mm successfully and consistently? Does focus peaking work well?