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Member Since 15 Jan 2012
Offline Last Active Today, 08:14 AM

Posts I've Made

In Topic: Do 15mm's need servicing?

08 October 2018 - 08:24 AM



Look What I found:)


Attached File  nikonos 15mm service manual.pdf   561.41KB   36 downloads


Hopefully you can download this. If not, send me an email at 




and I will send the PDF to you



In Topic: Do 15mm's need servicing?

08 October 2018 - 06:56 AM

Hello Fred


I have no additional information on the first generation lens.


However, looking at photographs the knobs look the same, although both are silver.


I have a Nikonos 15mm ver2 which I have as a parts donor.


Send me a PM and I will donate the knobs, control shafts and screws for your project. You could then drill out the seized ones and hope for the best! I don't have o rings, but there is a fellow on Ebay in France who sells them.






In Topic: Strobe maintenance

24 September 2018 - 01:26 PM

I have been using Lanocote on threaded metal fasteners.


It is basically a waxy material made from lanolin and seems to work like a charm preventing galvanic corrosion.


You can buy it from boatyards for marine hardware and Backscatter stocks it.



In Topic: Bifocal dive mask and Aquatic Optics

09 September 2018 - 05:39 PM



I used Seavison in San Diego.


They did a great job; distance correction upper, plain glass lower.


Find a mask with tall lenses (e.g. Scubapro Spectra) to give more real estate.


I also had them bevel the lower edge of the upper corrective part, so looking downwards I am looking along the bevel, rather than across a flat, distorted transition. It gives the impression of no correction and makes more of the surface useful for vision.



In Topic: Strobe Positioning - Free 20 Minute Video Tutorial!

28 August 2018 - 08:36 AM

Thanks for this! Comprehensive and excellent review tutorial for those of us who are not in the sea every day.


Great refresher before the next trip.