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Posts tagged ‘artborghi photography’

Freeze! My first Deep Space Objects

Starry night skies are present in Zurich despite the light pollution . Still, is light pollution low enough for shooting deep space objects? Which exposures / f values,  ISO combinations are necessary to capture galaxies or star clusters?

With a fixed tripod, 30 sec exposures cause long star trails.

With a Skyguider Pro mount, 4 minute long exposures produce clear star pins: so many stars turn visible through photography!

With such long exposures, Deep Space Objects like M37, Spinwheel and Starfish star clusters got visible! Can you see them between Venus (bottom left) and Capella (the bright star on the right border)?

Here is a crop from above: the 3 clusters are vertically displaced across middle of the picture.

A continuous tracking of the Polar Star alignment is useful with 4 minute long exposures or longer. If the alignment get lost during the shooting, star trails will appear. I obtained continuous tracking by changing the optical scope for iPolar, an electronic scope which shows the alignment to the Polar Star on a laptop screen. The electronic scope does not need to detect the Polar Star. The detection of 3-4 stars is enough to localize the Zenith. A good alignment is very easily kept for 4 minutes and likely more.

 

Camera setup for stars: 240″, f/3.2, ISO 500

Around 20 pictures stacked with the free software DeepSkyStacker

Lenses: Nikon 70-200 mm or 35 mm

Cameras: Nikon D800 or D600

Mount: Skyguider Pro (iOPTRON) with iPolar

7,764,221,494

A relaxing walk at the time of overpopulation.

Click each picture to enlarge.

Panta rei

People moving on the square below Üetliberg tower, Zurich, Switzlerand

Click each picture to find the differences.

Through the glass

Pictures shot in Zurich. Click each picture to zoom in.

Caged

Pictures shot in Zurich. Click each picture to zoom in.

No trespassing

Pictures shot in Zurich. Click each picture to zoom in.

Team work

How many workers do you need for rebuilding 200 meters of tram tracks in 48 hours?

Many.

Click each picture to zoom in.

Alpine whites

Pictures shot in Elm, Glarus, Switzerland. Click to zoom in.

 

 

 

 

Lost and found

 

Pictures shot in  Elm, Glarus, Switzerland. Click to zoom in.

White trails

The two Mythen peaks in the background

The frozen Shilsee harbor

Suspicious white trails

Cross country skiing tracks starting in Einsiedeln

Pictures shot on the frozen Sihlsee shores, Switzerland. Click each picture to zoom in.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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