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Member Since 05 Aug 2011
Offline Last Active Yesterday, 03:59 PM

Posts I've Made

In Topic: sea snake question

21 March 2014 - 10:28 PM

I clearly see spines on right side white band. Also this crop is from front end of the snake and in the images from article linked by John it

appears the spines are reduced or almost absent on that end of the snake. Perhaps you could ping an email with a link to this thread to

Kanishka Ukuwela. Be very interesting to hear his thoughts.





Here is Kinishka response after he was sent a link to this discussion:


"Hi John,
Thanks for the message. The snake on the photograph is the Common File snake (Acrochordus granulatus) (check this link: http://en.wikipedia....rdus_granulatus). This is not a true sea snake. It belongs to the family Acrochordidae. They are mainly brackish water species, but they are well known to enter the sea as well. 


In Topic: sea snake question

20 March 2014 - 04:57 AM

Hello Wahrmut,


I've never even seen a sea snake, but I stumbled onto a site that describes an uncommon species with spiny scales. I thought it looked a lot like your snake. What do you think? Did it have spiny scales?




John McCracken

In Topic: Rocio Del Mar - Any comments on the operation?

01 March 2014 - 08:41 AM

We are headed on there in April.....your post now has me a little concerned! It surprises me that any live aboard would not have a sufficient camera table with so many photographers nowadays.


Hello Oceanshutter,


If you go to Rocio Del Mar's website, there is a picture of the camera table on the dive deck in the ship's "virtual tour". That's what I saw when I was there in November. http://www.rociodelm...rtual-tour.html

It seemed good to me. We were also told that it was to be used only for cameras.


Also on the website, under ship photos, there is an old picture of the previous camera table which is much smaller. I think that may be the one some people were unhappy with.


John McCracken

In Topic: Are buoyancy arms generally needed with a setup?

16 November 2013 - 12:11 PM

I am slowly gathering equipment to take my Canon 6D underwater. I am acquiring all Ikelite products (housing, strobes, arms, ports etc) and I have no idea what kind buoyancy this rig would have. From experience, does this setup tend to be positive, negative or neutral? Would I need buoyancy arms and if so, what kind would you get?




Hello Christine,


I have two Ikelite i60 strobes with Nimh batteries. In order to achieve neutral buoyancy with these attached I have added floats that displace over 1.5 liters of water. However, Ikelite's newer 160/161 strobes have lithium batteries that each weigh 800 grams less than the bateriies on my strobes - you might need any kind of floatation if that's what you're using. 


John McCracken

In Topic: Suspension floatation for housing

04 October 2013 - 10:55 AM

Hello Anyone,


The Flickr link to initial photoset no longer works. I notice that previously working Flickr sets by tdpriest have also gone blank. Does anyone know why?


Anyway, if anyone is still interested in seeing a way to make and attach such floats, then you can click on this general link to my Flickr photo sets and select the set titled "floatation above the housing"



John McCracken