Jump to content


Member Since 09 Feb 2007
Offline Last Active Today, 12:48 PM

Posts I've Made

In Topic: Anglerfish Trigger - remote slave sensor

14 May 2019 - 11:27 PM

I think mine is an Ultralight one.


It does loosen itself, particularly with all the leverage that can be applied by the strobe and clamp. I just tighten it as hard as I can.


That said, I have lost one Gorillapod...I would suggest having a lanyard that keep Gorillapod and strobe together in the event of them inadvertently unscrewing themselves..



In Topic: Strobe Failure A note of caution

08 May 2019 - 11:59 PM

This is entirely anecdotal, but for review purposes, I have fired Inon Z330, Seacam 60D, Retra (original), Symbiosis, and YS-D1's as fast as they will recycle for over 3-400 flashes. In each instance, the batteries were changes and then were cycled for a similar number of times for at least 3-4 complete cycles. They were in a bucket of water while doing so.


I can report that none of them how any signs of damage for having done so. 


As it happens, I would imagine that at least some of this testing took place with the strobes pointing down too.


I would imagine that the strobe manufacturers give fairly conservative guidance on how to with their product. 



In Topic: Eco Friendly Mask De-fogger

06 May 2019 - 12:57 PM


In Topic: D810 vs D850

30 April 2019 - 12:28 PM



However I disagree with Adam that AF is so important UW. The D810's AF is fantastic (its my housed camera) and while I haven't used the D850 (I have used the D500), I consider AF as quite unimportant UW. I shoot more topside than UW and pushed the AF limits of many cameras in challenging situations over the years, but UW is not one of them.


I've used D800, D810, D500 and D850 extensively underwater and can categorically state that the AF on the latter 2 is an order of magnitude better than on the first 2! When I first took the (then) brand new D500 to Indo, out of just over 6,000 images shot in a month, I think probably 35 were out of focus. With D810, I could bank on about 15% being out of focus. It made my first cull much, much harder :)


As for its importance, we use AF to hand-hold shoot things that are so small that we would use a tripod with a macro rail at the surface. We shoot fast moving animals in low light and low contrast situations. We rarely have the option of manual focusing when AF doesn't work...


It is pretty much the most important feature! In post you can fix many issues, but if the image is out of focus, it goes in the bin...


Resolution is (largely) a drawback with added optical problem and DOF issues when shooting underwater. Frame rates and buffer sizes are all faster than any available strobe's recycling time. 


I have chatted to Nikon at various levels, including corporate, and they state that mirrorless IS the(ir) future. I expect that the development of new SLR models will slow significantly as resources are allocated to this (BTW the same is true of Canon too) and although pro models will continue to be offered, this will likely not be at the same rates as before. For us underwater shooters, this is a problem as Nikon has not even committed to produce any Z mount lenses that are truly suitable for underwater use in the next 3 years! 


Of course, all the above is conjecture and may be wrong :)



In Topic: D810 vs D850

28 April 2019 - 02:05 AM

The most important difference between the two is the autofocus on the D850. It is an order of magnitude better than that of the D810.


Given how important AF is to us underwater photographers, this makes the the decision between these two easy!


However, to throw a curved ball, the D500 has the same amazing autofocus, is considerably less expensive and gets around many of the optical problems of full frame high resolution cameras....