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How to get that spectacular photo of the northern lights

Yukon photographer Mark Kelly shares some simple tips when shooting for the stars at this weekend's Dark Sky Festival in Kluane National Park.

Yukon photographer Mark Kelly shares some simple tips to avoid aurora blurry-alis

Yukon photographer Mark Kelly says one of the best ways to get great night sky photos is to get out of town and away from any light pollution. This photo was taken in Old Crow, Yukon. (Mark Kelly)

What's the first thing you need, to capture the perfect photo of the night sky?

"Patience. You've got to have some patience," says Whitehorse photographer Mark Kelly, who's got an impressive collection of spectacular night-sky photos.

"These shots take a long time ... you need to have a Thermos of coffee, and a good attitude."

This weekend, Kelly is holdingsome photography workshops as part of the annual Dark Sky Festivalin Yukon's Kluane National Park, hosted by Parks Canada and the Yukon Astronomical Society.

"This is a great time of year for aurorashooting. What I love about it is that sometimes the mountains are capped in snow, the water is still open so you can get reflections in the lake, and it's usually still, at late night," he said.

Kelly says this is a great time of year to shoot aurorae. (David Thoreson)

Here are some of Kelly's simpletips for capturing the constellations, oravoiding an aurora blurry-alis.

Stop the shaking

"The biggest trick, actually, is having a good tripod," Kelly said."It doesn't have to be expensive, but it ought to be solid and strong."

Getting a good shot in low-light conditions means opening your shutter for several seconds. That means you haveto keep your camera as still as possible, lestthose twinkling stars become amorphous blobs orstreaks, andthe aurora borealis becomes an unremarkablesmudge of colour.

"You have to stabilize your phone. You can't just hold it, no matter how still we think we are. Our heart is still beating," Kelly said.

Another of Kelly shots from Old Crow. (Mark Kelly)

He also suggests using a cable or a timer to actually take the shot, so you don't have to touch the camera and risk moving it.

Adjust your settings

Once you're set up with a tripod, it's important to turn off the camera's image stabilization or vibration reduction (VR) tool.When the VR ison, Kellysays, it can create a vibration down the tripod legs that make a shot blurry.

"I've had lots of folks in my classes say, 'I don't get it, it's blurry!' And I'll walk over and say, 'Well, is your VR off?' and I'll click that off. The next thing you know, you've got a nice crisp shot."

Kelly recommends using a high ISO say, 1600 but not too high. He said he tries not to shoot over 3200, to avoid noise ina long-exposure shot. Noise gives an image an uneven, grainy look.

Use the widest aperture possible that your lens has, he says. And don't keep theshutter open too long.

"Anything longer than 25 seconds and your stars will start to streak," he said.

For aurora shots, even 25 seconds might be too long, and result inoverexposure.

Reflections in the Porcupine River in Old Crow. (Mark Kelly)

"Don't forget, aurora is dynamic ...on a really bright night, you might get a big white or green streak and blow it out. All of a sudden it's too bright."

Finally, he says to use stars as your focal point for expansive sky shots.

"You do always have a little bit of foreground. And if you don't focus on the star, the stars won't appear as a pinprick, they'll appear sort of soft when you go to enlarge it.

"Pickthe brightest star in the sky, usually for us it's Polaris, and focus on that. And then turn your auto-focus off, and then re-composeyour frame.

Get out of town

Most important, Kelly says, is finding a good dark sky.

"The hardest part is actually not having other ambient light bother you. Solike, lights of a city," Kelly said.

In other words, it's best to get out of town unless you live in a very small town.

"If you live in Pelly Crossing, you can do it out your back door," he said.

Kelly is hosting workshops this weekend at the Dark Sky Festival in Yukon's Kluane National Park. (Jason Wolsky)

Most of Yukon is relatively free from light pollution, except around Whitehorse.Kelly said he used to be able to drive not far out of town to find a nice dark sky but not anymore.

"Now the glow of the city is quite clear and obvious," he said.

He says Kluane Park is an ideal place to try one's hand at night sky photography. He says getting spectacular shots alwaysinvolves some trial-and-error, but it's worth the effort.

"Get a nice spotthat you have a nice foreground, and a good view of the sky, and your lawn chair and your flask and your tripod and your camera, and yeah give it a go."

Written by Paul Tukker, based on an interview by Elyn Jones