tamas970

My french is limited, what I decoded they use a PVC tube for the cylinder, claiming it is stronger than Acryl - true, but there is
the hassle fitting the acrylic dome to the front.

Regarding material I am considering plexiglas or lexan (polycarbonate) - I have to do some more research on the materials.
Transparent PVC is slightly blueish (counterproductive for uw photography).

For me, the most problematic part is the sealing: I would like to produce something, that is safe between 100 and 150m.
As a first thought I designed the lid contact surface to be conical to distribute the sear force a bit - here I don't have any
example from the UW photo business, just some experience from the university. However, there we had special conical
O-rings too, unfortunately they are not available in such a large size.

The topic for the first version looks more informative: http://forum-photosu...php?f=38&t=1317

However, this also needs a custom made dome (=need a workshop anyway). I would keep the design simple
and minimize the number of glued/sealed interfaces. Ouch, forgot to mention: The housing would consist of only
two parts, a "bell" or "dome" including its skirt and a lid. Only the lid-side needs sealing.

I just need to find a workshop, that can cast the "bell".

Have a look at this french topic regarding building a flash housing :
http://forum-photosu...php?f=38&t=8167

Hi everybody! I am very new to this forum, thus cannot start a new topic. I am designing acrylglas housings for my land-use strobes. I just started to set up my underwater gear, based on an Olympus E-PL5 and being stunned by the price of underwater TTL strobes or housings for land-strobes. (I have two land-use strobes, capable of remote TTL anyway) Therefore, I am considering building my own housing based on the idea of a videographer fellow: http://www2.mrc-lmb....al/pdh/housing/ .

I modified the design a bit:



Long story short:
Material: Acrylglas, wall strength: 10mm (Lid: 20mm)
Semidome front profile (->the illumination angle of the flash doesn't shrink)
Communication: Toslink cable, I already tested, my Metz 50 fires perfectly using them.
Material weight ~1.2kg -> approx. 1kg lead is needed for neutral bouyancy.

I'll check the local workshops If they can make the shapes for me. Regarding leakage,
I am optimistic: The video housing I've just linked started to leak at 160m...