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Member Since 06 Jun 2004
Offline Last Active Sep 14 2015 06:15 AM

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In Topic: Nikonos RS 20-35mm Lens Converted for Nikon Digital

27 May 2015 - 10:30 AM

Thank you!

In Topic: Nikonos RS 20-35mm Lens Converted for Nikon Digital

22 May 2015 - 08:37 AM

Yes, crossed fingers on all counts, Dr. M.  One of our colleagues in Hawaii had his 28mm RS lens adapted for digital but I barely used that lens back in the film days so not so interested to resurrect it now.  I do have the Rene Aumann 18mm, which is I think a true Nikon 18 inside his own dome.  But I think the cost of converting that would exceed the cost of a used 18mm in the marketplace...

In Topic: Nikonos RS 20-35mm Lens Converted for Nikon Digital

22 May 2015 - 03:12 AM

Alex, all good points.  However, I do not think that a 27 - 47 lens is all that bad a tool in the toolbox.  I have enjoyed using the 24 - 70 for many images in the past but it is extremely heavy to travel with and requires a lot of extension and bigger dome than this re-design, so Harald's compact solution does seem a bit tidier.  I have been following your progress with an external optical port with great interest and have high hopes that a manufacturer will partner with you to make this corrector available to a wider audience.


Until that time, and in the interest of nostalgia and frugality, the notion of adapting the existing 20 year old "20-35 Zoom" is tempting.  I was simply hoping one of the Wetpixel audience has actual digital images from a conversion to share with those of us curious but sitting on the fence before making a substantial investment in having the lens adapted by Seacam.

In Topic: Nikonos RS 20-35mm Lens Converted for Nikon Digital

22 May 2015 - 03:01 AM

Hi Alex


Here are the missing posts -- not certain why it wasn't posted.







i am interested in this approach also...thinking 13mm on D800.


Can you tell me what housing you are using?

I am thinking Nauticam with Nauticam/Seacam port adapter? Any thoughts on how this would work?









I wasn't clear. I have the Nikonos 15mm with adapter for Nauticam A7


What I mean is Seacam conversion of the lens with a Seacam to Nauticam port adapter so the Port portion (front glass) can be fitted to a Nauticam housing instead of a Seacam housing, which is what I assume you are using?







Not at all.  The lens is split into two pieces.  The old and refurbished lens mounts directly to the camera.  The old dome is re-tooled to go to the Seacam housing.  The Nautical adapter would be a gamble at best.  But really this is a very specific technical question you should aim at Nautical or Stephen Frink, the Seacam distributor is the USA, for absolute clarification.


I would not want to be responsible for flooding caused by third party solutions.


I am using Seacam for my Nikon products.  I am using Nautical for the Sony A7 camera.  Its a pain to travel with but thats the way it works.



[MOD EDIT: reformatted by AM] 

In Topic: Nikonos RS 20-35mm Lens Converted for Nikon Digital

21 May 2015 - 02:59 PM

Yes, the the Nikonos RS 13mm works brilliantly on Seacam for Nikon D800 and D810.  I had the Nikonos RS 13mm conversion done by Seacam USA last year and have been using the lens extensively the past several shoots.


As a matter of fact, this double page spread in the current issue of DAN Alert Diver was made using this lens.

But to my knowledge, Nautical does not have a conversion for the Nikonos RS 13mm lens..  The port adapter you mention is for use with the Nikonos 15mm lens, which is a very different lens.  It is extremely sharp but will be ALL manual focus, ALL manual aperture and it is used on the SONY A7 full frame cameras or NEX  cropped sensor cameras.  
I also have this lens and housing in my arsenal and it works quite well.  I plan to use it in the coming months for "smaller" wide angle subjects, such as sea lions and small sharks.