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Alex_Mustard

Member Since 16 Jan 2003
Offline Last Active Today, 03:05 PM
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Topics I've Started

Full Frame SLR wide angle corrector port tests

20 December 2014 - 02:54 PM

I have just begun experimenting with an optical corrector port for wide angle underwater photography. My intention is to use it on my full frame SLR to give me improved image quality - especially corner sharpness when using non-fisheye wide angle lenses. The corrector was build by Carl Zeiss and adapted for my housing by Pete Ladell. 

 

Here it is on my Subal ND4S housing:

UK14_am-20828.jpg

 

I thought I’d start a thread to present and share my findings as I go along.

 

In theory the adaptor is afocal and can be used to correct any lens that will fit behind it, which is an enticing prospect to be able to use many different lenses underwater, including zooms, with theoretically a much better correction than a dome port. Basically turning any lens into a corrected underwater lens. Autofocus and everything else working as normal.

 

Of course, that is just the theory. I took it to the pool yesterday to try it underwater. I am not necessarily the biggest fan on pool tests and much prefer to evaluate optics with real world subjects. But this was a massive step into the unknown - so the first aims were to check that it didn’t leak and to check it even worked at all. This corrector was designed for a camera without a viewfinder - so nobody had ever looked through it before underwater! 

 

Hooray, it seems to be keeping the water out - test shots of tiles:

alex1.jpg

 

The small port size offers possibilities for CFWA:

alex2.jpg

 

And yes, it works, the photo I was taking, above:

UK14_am-21083.jpg

 

Alex


Nauticam NA-D7000 for sale.

19 March 2014 - 01:49 AM

Hello, 

 

I am selling my Nauticam NA-D7000 housing, which has been unused since a recent extensive factory service at Nauticam HQ, which included:

all controls completely replaced (inside, outside and through housing)
new latches
new camera tray
new leak alarm with new battery
new rear screen on housing (plastic protector still in place)
new handles
new protective anodes
new rubber base
repainted information decals
The only indication that this is not a completely new system are minor scuff marks and stains on the paint work.

 

Photos of the housing yesterday:

Attached File  UK14_am-10994.png   811.41KB   40 downloads

 

In short the housing like new, but half price. GBP £1200 + shipping (I am based in the UK and would rather sell in the UK or to someone I know). Great opportunity.

 

I am also selling off a D7000 camera (with broken live view switch) for just GBP £200. Which I will offer first to the person who buys the housing. 

 

Further details: 

http://www.amustard....page=d7000_sale

 

If you want to know more about this system then read this: 

http://wetpixel.com/...uticam-na-d7000

 

Alex