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peterbkk

Member Since 25 May 2005
Offline Last Active Jul 19 2014 05:14 PM
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Posts I've Made

In Topic: Tubbataha Reef, Philippines

19 July 2014 - 05:12 PM

Conditions looks awesome ! , which time of the year you went ?

 

 

It was the last week of May, right in the peak of the season.

 

Tubbataha Reefs are only open for 3 months from Mid-March to mid-June.  Mainly for weather reasons.  The reefs are 150km from the nearest shelter.  There is no shelter at the reefs.  And typhoons do pass through to the north, with the occasional one running right across the reefs.  Believe me, you wouldn't want to be out there in a storm.

 

But, also for conservation, they want to limit human impact.  Access is tightly managed and controlled, with only a few boats being licensed each season.   The rangers, who live there year-round in a storm-shelter, do a great job, patrolling the reefs, armed with M16 rifles, chasing away cunning fishermen.  Before the dive boat leaves the harbour, volunteers from the National Parks come on board to explain the rules and encourage good diver behaviour.  Having seen Marine parks all over Southeast Asia, and having a passion for improving them*, I was suitably impressed by what the Philippines is doing at Tubbataha.

 

For more information: http://tubbatahareef.org

 

http://www.peterwalk...arineparks.html

 

Regards

Peter


In Topic: GH4: Panasonic 7-14mm f4 lens in a Zen 170mm port?

19 July 2014 - 02:27 AM

Thanks for the information.

 

Seems like the Panasonic 7-14mm lens is the way to go.


In Topic: GH4: Panasonic 7-14mm f4 lens in a Zen 170mm port?

18 July 2014 - 06:36 AM

It does if you have shakey hands! :)

 

Best to avoid too much coffee before a dive.   :beer:

 

It would be nice to have image stabilisation but Mr Cheung is working on a stabilised housing modification for me.

 

Regards

Peter


In Topic: GH4: Panasonic 7-14mm f4 lens in a Zen 170mm port?

18 July 2014 - 06:32 AM

possibly aided by the 4k crop.

 

Yes, although it is not ideal footage to judge corner sharpness, I can not see any obvious corner softening, even played at HD on a large monitor.

 

I think that you've answered the question with your "4K crop" comment.  Even if the dome / lens combination was softening the corners, the corners are not being recorded in any video mode.  And the side edges are chopped off in 4K mode.  

 

So, therefore, if the 12-35mm works out to be not wide enough, I assume that I can safely go ahead and buy the 7-14mm lens.

 

Regards

Peter


In Topic: GH4: Panasonic 7-14mm f4 lens in a Zen 170mm port?

18 July 2014 - 03:51 AM

Good point.  Although a super wide-angle should not need stabilisation.