Jump to content


Viz'art

Member Since 06 Jan 2004
Offline Last Active Apr 15 2014 07:37 AM
*****

Posts I've Made

In Topic: OM-D EM-1

14 April 2014 - 06:08 AM

Kadu, I just e-mailed you the procedure for the flash.

 

Oktay, this allows the camera flash to trigger in the lower position (as opposed as having to raise it fully), keeping the flash down allows for a substantial reduction in height of the housing, it is the same procedure used by Olympus.


In Topic: Deep Wreck Project - lens-port combo?

05 March 2014 - 05:12 AM

Hi Jean, thanks for your comments. I certainly would not expect Aquatica to endorse this madness, and clearly this is done entirely at my own risk!

 

However I am interested whether you agree that the 4" hemispheric glass port should have a theoretical higher pressure tolerance than the larger acrylic domes, which I believe have been known to pancake or invert at depth?

 

With the lens shade shaved, this port is optically acceptably matched with the Sigma 15mm?

 

Thanks

Harry

 

Well the 4'' does have a small radius which is in this case does work for you, on the other hand, I have yet to see an acrylic dome invert itself, be it a 6'' or an 8" !!! 

 

Such a small dome on a full frame camera will be a tough one, typically small dome are designed for shooting up close, with a cropped sensor (shorter focal length and smaller image circle) at the minimum distance with the smallest of aperture, you will be shooting a wreck at some distance on a full frame at close to, if not, full open aperture. you will be seriously out of the comfort zone of this dome design Harry.


In Topic: Deep Wreck Project - lens-port combo?

04 March 2014 - 05:00 AM

Hi Harry,  IWe can't honestly recommend that you go beyond the recommended depth rating of the housing.

 

However, should you want to proceed, I would certainly try and find a pressure tank and subject the housing and dome (without camera inside)  to the pressure equivalent for an hour at least. Plan B would be to attach the housing to a weighted line and lower it at the actual dive site without a camera inside, .

 

you will need to cut the shade of the Sigma 15mm partly, that would be best done by a camera repair facility. its not something you want to hack off blindly.


In Topic: OM-D EM-1

01 March 2014 - 03:03 PM

Thanks - do I have the connections right in this graphic?  I'm trying to figure out where the 1/4-20 hole is located

 

Its right behind (and hidden by) the optical connector :-)


In Topic: OM-D EM-1

28 February 2014 - 09:34 AM

There is still a 1/4-20 hole on top of the housing ready for attaching accessories such as a Focus light :-)