Olympus OM-D & Nauticam Weights

[Akimbo]

I took some fairly accurate weight measurements in a trash can filled with salt water of different Nauticam components for the Olympus OM-D that may have some use to others.

I used a hanging 0-1 Kg electronic scale x 1 gram:

Amazon.com: American Weigh Scale Sr-1kg Gray Digital Hanging Scale, Gray, 1000g X 1 G: Health & Personal Care

My objective was to determine what size buoyancy strobe arms to purchase. I hope you find some of these measurements useful. Your mileage may vary.

1	Olympus OM-D E-M5 body w/memory card & battery
1	Panasonic Lumix G Vario 7-14mm f/4.0 ASPH
1	Nauticam NA-EM5 Housing, #28351
1	Nauticam 6' Wide Angle Port for the Panasonic 7-14mm, #36133
1	Nauticam Zoom Gear P714-Z for the Panasonic 7-14mm, #36142
1	Nauticam Long hand strap for Mirrorless IL camera & compact camera housing, #36323 (rubber removed)
	Total:	100	Grams buoyant

1	Nauticam Flexitray with Left Handle #71204
1	Nauticam Adjustable Right Handle for Easitray and Flexitray
2	Nauticam 1" Base Ball for Easitray and Flexitray
	Total:	-269	Grams

2	Sea & Sea YS-D1 Underwater DS-TTL Strobe	-77	Grams
6	Nauticam Clamp for all 1" ball arm systems #72501	-269	Grams
	Total:	-515	Grams Negative camera & strobes without foam Neoprene handle, no strobe arms

1	Intova Supernova light with mounting adapter
1	Nauticam YS Light Adapter for Cold Shoe
	Total:	-368	Grams

 

[xcetra]

Thanks. This was useful to me. I'm trying to setup a similar setup and was wondering about its buoyancy. You wouldn't have the grams/buoyant for each item rather than in a group? For example, I won't use the 6" dome port you have listed which affects the buoyancy a lot.

 

[Akimbo]

… I won't use the 6" dome port you have listed which affects the buoyancy a lot.

That is the only port I have so don’t have a way to seal the housing alone. The housing with the 6" port floats dome-up by 100 grams so I suspect a flat or smaller dome port would be neutral to slightly negative, without any handles or mounting adapters.

I purchased all the components except the actual strobe arms with floats so I could do this test. I am glad I did because I was able to get much smaller floats than I originally planned/guessed. That scale is very handy and inexpensive so it might be worth it for you to do the same to get measurements on the port(s) you plan to use. If you do, please post your findings.

BTW: the foam Neoprene cushion on the Nauticam #36323 Long hand strap added 229 grams of buoyancy at the surface. I removed it because it is so compressible. I ended up remaking the entire strap assembly with 1½" Nylon webbing and a piece of ¼" non-compressible cushion material that is only positive by a few grams. The only part of the strap I re-used was the screws and little stainless top bracket.