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Member Since 02 Feb 2004
Offline Last Active Yesterday, 12:57 AM

Posts I've Made

In Topic: Sony AX100 autofocus problem

23 June 2015 - 02:54 AM

If it worked before but is having difficulty after the update, I suggest you downgrade the firmware if you don't need the updates.  Sometimes it also helps to focus on a lighter subject of equidistance then lock it down, then recompose.

In Topic: Best shore diving around Bali or Area

23 June 2015 - 02:45 AM

Agreed.  The setup at Tulamben is best for easy shore diving even if the rocky shore can be a dome port (or ankle) hazard in rough water.  You have a variety of sites like the wreck, sandy bottom, wall, coral fields all within reach.
My budget buddies usually stay at the Paradise, a decent if a bit old and run down place.  For $30 a night, you can't ask for much more.   They have a dive ops which will supply tanks.  You just have to arrange for the porter ladies to lug it down to the beach for you depending on where you want to dive.  If you are looking for tiny subjects, I'd suggest you hire a guide or dive with an ops like Tulamben Wreck Divers who have experienced guides for photogs looking for tiny things.  Or just have a 20x glass magnifier and try your luck with a stick.
The cheap, good and simple food of Wayan is still a fave of mine.  Enjoy your trip! It's a wonderful place to dive a week away.


In Topic: Fish eye or rectilinear for filming?

02 June 2015 - 01:10 PM

David, the funny thing about Phil's 1.17x crop factor post (which Red even posted as true) from 2013 is different from the actual Red cinematography tool's 1.25x, which many use to get EFL.  
I've yet to get a reply from their webmaster about that. It doesn't really matter for topside shooters but for underwater peeps with domes to worry about.  It's kind of  important.
I've verified it to be 1.25x from using the sensor size diagonal based measurements.


In Topic: Fish eye or rectilinear for filming?

02 June 2015 - 02:50 AM

Just a quick note that Jon is talking about using a Red with the 15mm Zeiss. At 6k, the Epic is 1.25x crop so it's essentially 18mm.  But yes it's a fantastic lens at $2.6k.

In Topic: Fish eye or rectilinear for filming?

25 May 2015 - 01:44 AM

Cal, the 16-35 f4 is definitely the lens to get if you can afford it.  It also has IS which works with video.  17-40 is problematic with corners. especially on the wide end.

As mentioned by others, rectilinear has always been the classic preference for most underwater shooters because of the lack of distortion, especially on moving shots with a busy background.  But even rectilinear wide angle will have some distortion if you pan.  20-24mm is about my favorite focal lengths for underwater use.