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johnjvv

Member Since 06 Sep 2011
Offline Last Active Mar 18 2014 01:06 AM
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Posts I've Made

In Topic: UW photo gear in carry on - any no-no?

18 January 2014 - 02:11 AM

Similar to others, I was stopped for trying to carry on my wrench/spanner and Allen wrenches in Tel Aviv. Fortunately, I had enough time to go back out and check them in as luggage. I was rather annoyed though when they provided metal cutlery for the dinner service on the flight. I have to think the knife I was given was far more deadly than my Allen wrenches.


Funny!! They are pretty inconsistent with their rules. I sell steel wire rope and travelled with a sample of 6mm wire rope which went right through however they confiscated by box tape!

In Topic: one strobe or two?

17 January 2014 - 02:40 AM

Easier two dive with two strobes, as the weight is balanced on your rig...

In Topic: UW photo gear in carry on - any no-no?

17 January 2014 - 02:37 AM

Know what your bag weighs and what you have to take out to make it 7kg's and make sure it does not exceed the dimensions. Use a light bag with less padding and bubble wrap your gear which is lighter. When you go through controls put whatever will put you over 7kg in another bag like a small backpack and your partners handbag. You are normally alowed to carry a personal item like a pc bag which can hold a lense, camera body etc...pass by the guard dogs and repack again into your camera bag...find out about bateries, I have been on Emirates and the one way they said batteries had to be in luggage and the other way the wanted it in my carry on....

In Topic: Digital Negative Files

12 January 2014 - 06:02 PM

I am happy with RAW (NEF) but spoke to a guy whom said DNG was the way forward as it is open source and therefore a better way to save files in the long run.

I never considered it so I wanted to check it out here instead of just agreeing with the opinion of the guy I talked to!

If there was no disadvantage then I would convert to DNG for the sake of it, but since I don't think NEF will disappear and I will waste storage space with DNG...there is really no point in converting on my opinion...

Thanks for your input!!

In Topic: Exposure set with available light, so why does photo still come out good with...

11 January 2014 - 08:34 PM



What I'm wondering is, given that my camera determines a proper shutter speed based on that aperture and the available light, why does an u/w photo still come out when a bright strobe flashes - i.e., contributes a sudden burst of light far greater than the available light?  


No expert here but your camera would be making a calculation based on the fact that your camera flash will fire. However the light emitted by your flash would not be intense enough, which is where your strobe kicks in. It is still possible to over expose with your strobe set to higher than required.