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Phil Rudin

Member Since 25 Jan 2005
Offline Last Active Today, 05:04 AM

Topics I've Started

Olympus 12-40 F/2.8 and the Zen Underwater DP 170 n85 port

04 July 2014 - 09:55 AM

Not many images have been posted using the New Olympus "pro" 12-40mm F/2.8 lens. This is an excellent lens with a high degree of weather sealing and freeze proofing. A very highly regarded lens with most of the top sites reviewing lenses above water.


I used this lens in the water for the first time yesterday and have attached some images shooting the lens with the Zen Underwater DP 170 n85 optical glass dome port for Nauticam Mini housings. Be aware that Zen has two DP 170 domes with the Nauticam mini mount, the send on is the DP 170 n120.

The difference is the the new n85 model has 25mm's of extension built into the port. The n120 can mount directly to the housing or can be used with a number of extensions depending on your camera system and lens.


The 12-40 zoom is big and needs to be installed to the camera from the front of the housing after the camera has been installed into the housing. The dome in then installed over the lens and secured to the housing. Once in place the vacuum system assures a proper seal on the dome to the housing.


I shot the lens mostly at wide F/stops to see how well the lens works in the wider aperture range. I also attached an over/under shot so you can get an idea of how the dome handles that task.


Over/under 12mm, ISO100, F/6.3, 1/320th.


Octo, 12mm, ISO100, F/7.1, 1/320th.


Octo vertical, 40mm, ISO100, F/5.0, 1/320th.


Octo underside, 40mm, ISI100, F/5.0, 1/320th.


Star, 40mm, ISO100, F/2.8, 1/320th.


100% star detail.


All are full frame, no crop, using two Inon Z-240 strobes attached to the balls on the grips (no strobe arms used.






July 10th Guest Speaker Elly Wray

02 June 2014 - 06:59 AM

SFUPS Announcement: June 10 Society Meeting with Elly Wray as the featured speaker Come meet Elly Wray as she shares her insight as a Staff Photographer and Photo Editor for Scuba Diving magazine and The Undersea Journal on what a Photo Editor looks for when selecting images to publish. SFUPS is also celebrating our one year anniversary at the Courtyard Marriott. We plan on celebrating with something sweet and drinks will also be available for purchase. Event details are in the attached PDF file. We look forward to seeing all our SFUPS Members, and as always guests are welcome to all our monthly meetings. All are welcome, go to the SFUPS.org site for further details and directions to the meeting location.

SFUPS guest Speakers for March 11th.

08 March 2014 - 06:51 AM

There is no shortage of top talent when it comes to SFUPS members. The Up and Comer series will be a new effort to get to know these rising stars on their way to international notoriety. Several members over the years gained their start and developed lucrative careers and significant reputations with the aid of the Society. As we extend our reach to embrace underwater videographers there are two individuals who are making a name for themselves. Lee Burghard will kick things off in sharing his key insights into wide-angle videography followed by a short video of his recent work. Diane Randolph will then take center stage to present her latest macro and critter behavior short film featuring Stan Waterman in Under the Bridge. Well then close out the evenings presentation with a panel question and answer session to both videographers. The event details are listed in the attached flyer. Look forward to seeing everyone on Tuesday evening.

Belize Digital Photography Workshop

03 March 2014 - 08:54 AM

I will be teaching an Underwater Photography workshop at Splash Dive Center in Belize from May 3 to May 10, 2014. See the attached flyer for more details. Phil Rudin

New Review Olympus E-M1, Nauticam NA-EM1

01 March 2014 - 05:21 AM

My in depth review of the Olympus E-M1 and Nauticam NA-EM1 housing is now available at underwater Photography Photography magazine, UWPMAG.com, this is a Free PDF download.

Phil Rudin