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10

The Photographer's Ephemeris is a great software package to get started with these sorts of calculations. There is a free desktop version that you can use at home before your trip, and if it turns out to be really helpful, there are paid versions available for iOS and Android. This tool lets you mark a spot on a map and then calculate sunrise, sunset, ...


8

Nothing will be wrong with your digital camera. However, do not use a Microdrive or any device which includes ones. Those have a 10,000 ft maximum altitude. Microdrives as Compact Flash are rare these days but they are commonly (but not always) used in video cameras, iPods and media-players. Once on a press trip with 11 other photographers we reached an ...


6

I doubt that it will. I use a digital camera at 14,000+ feet fairly routinely (and only use it below 6000 feet or so when I travel). Aircraft have used cameras with little or no modification for quite a while, often at considerably higher altitudes than you're considering. Many are different because they're specialized, (e.g., shooting only in infrared or ...


5

At the equator, you would get 1 minute extra sun at either end of the day per 1.5km of altitude, according to this page. Using trigonometry, for every degree north or south you travel, the extra time the sun would stay above the horizon (per 1.5km altitude) would be (1/cos (latitude)) * 1 minute per 1.5km, giving the following values: 10° : 1.02 min = 1 ...


4

The camera will be fine. It's worth noting that some camera components have trouble at extreme altitudes. In my case, the place I work flew a Canon 30D on a high-altitude balloon, which makes it up to ~90,000-100,000 feet. Unfortunately, some idiot forgot to turn the flash off, and the flash self destructed due to lack of cooling (there is little air to ...


1

You can also use a free tool that I've developed with a colleague. It computes the actual sunrise and sunset times for any location worldwide, accounting for terrain. The example in the image is for Chamonix in France. Go to suncurves.com to find your own location. Hope you like it! I'm using it for all my outdoor shoots.


1

The sun sets/rises later on a higher point than that point directly under it. The perfect ideal example is a person watching Sunset in the sea on a cliff while the other is down the cliff , the exact time difference can be calculated by analysing the triangle r , r+h where h is the height and r is Earth radius


1

What type of battery copes best with low temperature? LiFePO4 - Lithium Ferro Phosphate - chemistry is often rated to -20C and in a large minority of cases to lower. Voltage per cell is on the low side of Lithium Ion - 3.6V max on charge and typically 3.2V on moderate or low load and 3.1V on heavy load. Custom external battery pack: Making a custom ...



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