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tursiops

Member Since 05 Jan 2008
Offline Last Active Oct 17 2018 05:53 PM
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Posts I've Made

In Topic: Lithium - Ion Battery

11 October 2018 - 09:20 AM

You're usually not allowed to have Lithium Ion batteries inside of checked in luggage. You need to put them into the bring aboard luggage and they need to be packed in a way that they can not be short circuit. Which means they also usually need to be outside of the device they are used for (if possible) or the device needs to be protected from turning itself on by accident. Most airlines also limit the amount of extra batteries that you're allowed to bring aboard.

The FAA/TSA rules for the US allow Li-Ion batteries that are installed in devices to be in checked luggage. It is loose batteries that must be hand-carried. See:https://www.faa.gov/...d_batteries.pdf

 

Q2. What kinds of batteries does the FAA allow in checked baggage (including gate-checked bags)?

A2. Except for spare (uninstalled) lithium metal and lithium-ion batteries, all the batteries allowed in carry-on baggage are also allowed in checked baggage. The batteries must be protected from damage and short circuit or installed in a device. Battery-powered devices—particularly those with moving parts or those that could heat up—must be protected from accidental activation. Spare lithium metal and lithium ion/polymer batteries are prohibited in checked baggage—this includes external battery packs. Electronic cigarettes and vaporizers are also prohibited in checked baggage. “Checked baggage” includes bags checked at the gate or planeside.


In Topic: Q about Nauticam housing for Oly EM10 mk3

10 October 2018 - 01:05 PM

Hi guys -
Can someone let me know the following about the :
- Is it possible to use back button AF on the Nauticam housing for this camera, and if so, is the button at an ergonomically sensible location?
- Does the Nauticam housing allow direct movement of the AF point (IE, without needing to press any button)
- Any unexpected gotchas or other issues with usability as far as this housing goes?
TIA!
Sefnt from my BBF100-6 using Tapatalk

I have the Mk1. I assume they are similar.
Yes, the thumb button normally to start video can be reprogrammed to be focus. Very conveniently located. Moving the AF point involves several button pushes.

In Topic: Lighting to shoot Icebergs

06 October 2018 - 03:54 PM

Your strobe won't reach very far...10 feet would be a long distance. This means a very wide-angle lens/dome (as you have) so you can get close and still get subject matter in the frame. I'm not sure I'd even worry with the strobe, but would try just ambient light...with good clear water it might be enough. The brightness above suface will be a problem, so sun angle and shadows will help. ideally, backlit for the above surface part, and ambient light below. Practice finding he exposure that does not burn out any sun-illuminated part, but still allows some non-pure black below. If you could find a stable platform, HDR would help. Low ISOs to try and get max exposure range.

 

All those scenes you see in caves are not lit with a strobe on the camera, but rather with many strobes placed around the cave, so each one is close to what it is illuminating. Covering a large area with light is challenging. I would personally not even try it with an iceberg. I've dived in Antartica, next to an iceberg, and the u/w formations were wonderful, but they wee shot on their own, not as part of an over/under.

 

Good luck.


In Topic: Lighting to shoot Icebergs

06 October 2018 - 10:21 AM

If you are looking for a picture like this:

iceberg.jpg?resize=500,683

 

Forget it. It is a fake. See https://www.snopes.com/fact-check/giant-newfoundland-iceberg/. 


In Topic: Suggestion for Ambient Light Shooting?

03 October 2018 - 09:52 AM

Don't even use WB. Shoot RAW and WB in post-processing. Look for a used housing, preferably Nauticam. No point is a quality camera and lens but a crappy housing.