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oskar

Member Since 10 Jan 2007
Offline Last Active Today, 10:21 PM
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Topics I've Started

Wide wet lens, actual angle of view?

30 January 2014 - 06:18 AM

I have a Sea & Sea we lens made for the compact cameras DX-1G/2G.

 

I though it was equivalent to a 16mm  (35mm film lens), but reading the specs it does not seem that impressive any more:

 

To me it seems like it is in fact only 24mm equivalent in water.  Like I would care that it is a 16mm in air :-).

 

Am i reading the specs right?

 

Check this out:  

 

[Lens] 3 elements in 3 groups
[Underwater angle of view] 85° (106.5° on land)
[Magnification] 0.65x
[Depth rating] 60m / 200ft
[Weight] Approx. 406g / 14.2oz (underwater: Approx. 230g / 8.1oz)
[Dimensions (DIAxD)] 97x48.5mm / 3.9x1.9 inch

 

http://www.seaandsea.../001.html#52116

 

Cheers

O

 

 

 


Need to buy Nauticam gears in NY

27 January 2014 - 06:33 AM

Hi!

 

I'd like to get a Nauticam port and gear  (for Panasonic m4/3  7-14 zoom) while my sister is in NY city next week and is acting courier.    

 

Are there any store options there?  

 

Or if not what online store would you recommend that would have good shipping times?

 

Cheers

/O


OM-D EM-5 Nauticam with 9-18 zuiko?

15 December 2013 - 12:54 PM

I am about to buy a EM-5 kit with the 8mm fisheye and 4.33" dome.  

 

I have been offered to also buy the 9-18mm compact WA zoom, zoom gear and two 20mm extension rings, The extension rings is supposed to make the 4.33" port work equally well as the dedicated port for the 9-18.

 

I originally intended to eventually get the 12mm f2 for use under the same dome as the fisheye for  moderate WA.

 

 

1.  What is the current experience of the 9-18 mm WA?   I have been surfing the treads, but not found much current comments on it. There seems to be a preference for the 7-14 Panasonic in this case, in the early comments.  Anyone here using it now and what are your views?  (Please link if already commented in another thread.)

 

2.  Is the option with two extension rings on the 4.33" dome as good as the dedicated dome/port for this lens?

 

3. Should I hold off and get the 12mm as planned?  (this is a matter of personal opinion I know, but anyway)?

 

Cheers

/O


Painting with light - long shutter time and moving light

02 August 2013 - 03:11 PM

I'm trying to light a large WA scene on a wreck fairly evenly.   

 

There is no ambient light, so I figure that a paint technique like commonly done in dry caving could work.

 

I.e the shutter is opened in B or very long time, and then a diver swims around and lights different parts of the scene.

 

 

Any experience and tips and tricks for doing this?   To me it seems to be  tricky to get the amount of light right. 

 

Maybe using a manually fired strobe is an option, and first one make a test shot to see that the exposure of that strobe is right. Depending on the subject-camera distance one could fire multiple times at the same subject.

 

Thought on this?

 

Cheers

Oskar


WA lens options for Canon's G11 housing?

13 May 2013 - 01:07 AM

A friend of mine has the Canon G11 with the proprietary housing.   This housing does not have a threaded port or any other mount for wet WA lenses. 

 

I have boosted about how much a good WA lens would do, hower with this housing what are his options?  With an adapter there should be a selection of fish eye and rectilinears avaiable?

 

 

How about the "BigEye Lens G Series", he got an offer to buy a scratched one, but these does not seem to be that wide.

 

 

Cheers

/O