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Member Since 08 Jun 2009
Offline Last Active Jun 16 2009 05:35 AM

Posts I've Made

In Topic: PT-015 O-Rings

13 June 2009 - 11:09 AM

I may have a couple at home. I'm out of town but will take a look when I get back.

Thank you very much! Let me know what you find (or don't find). I appreciate you help :)

In Topic: PT-015 O-Rings

13 June 2009 - 10:54 AM

I was in your position a few years back and ended up buying the o-rings listed above. The problem is that you have to buy so many so I decided to sell 'kits' for $5 to recoup my costs. It was a fun project; I got to talk with people all over the world. But there aren't a lot of people using this housing any more so you will be stuck with a lot of o-rings you can't use.
I have a set of them (just the ones used for the buttons and dial) if you want; just email me your address. They are getting old but have been stored in a cool, dark area. I just looked at them and they appear fine but remember, you get what you pay for :) Also, here is a web site of instructions on replacing them:


Thanks Ben..I sent you info via WetPixel messages/email.


In Topic: PT-015 O-Rings

10 June 2009 - 11:14 AM

This was current info 2-3 yrs ago.

PT-015 O-Ring Sizes

Here's a URL to the thread that contains all the information on the c5050 orings:


Japanese JIS 2401 "P" series is the Standard for sizes P3 & P5, you'll find the standard here: http://mdmetric.com/or/jispgb.htm

All o-rings BUNA 70 (aka nitrile)


seventeen o-rings, order number OR-2.8X1.9 from Maryland Metrics ( $3.94 per 100)
(aka Japanese Standard Size P3) http://mdmetric.com/

on/off & mode dial control:

one o-ring, order number OR-4.8X1.9 from Maryland Metrics ( $3.94 per 100)
(aka Japanese Standard Size P5)

one o-ring, Precision Associates custom o-ring 0.053 x 0.074 (unknown cost)
http://www.precision...com/customf.htm (1-800-394-6590)

Thank you very much! This covers all the smaller o-rings.
However, I did not see (or just missed) the very long o-ring seal for the front and back of the enclosure (uses a pair of them to seal back cover). Any suggestions? Thanks again...

In Topic: shotting with C-5050

10 June 2009 - 06:08 AM

You can also use hyperfocal length in manual focus to get around the autofocus time lag. Use manual focus to set the focal length to about 6 feet - everything from three feet to infinity will be in focus (at the widest lens setting and F/4). Just press the shutter to take the shots. Someone published a hyperfocal length table for the C-5050 several years ago; do a search and see if you can find it.

Here's a link to "street shooting" using preset focal distances.


Very nice link - I have used it for land based info, but never thought to go there for help with underwater shooting.