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Head in the stars…

08/03/2018

The sky is clear, the night is soft. You are far from the lights of the city and the moon shines by its absence. Look up. Thousands of stars form a luminous band: the Milky Way. But shooting stars is nothing like photographing the landscape in the middle of the afternoon ...

 

The ideal camera for shooting stars is a DSLR or a hybrid (cameras with interchangeable lenses). These devices have large sensors that are much more sensitive to light, allowing them to work at high ISOs while maintaining good image quality. The higher the ISO, the more details you will see in the sky. A typical ISO for a starry sky varies between 1600 and 5000 ISO.

 

 

For a good picture of the stars you must also keep the camera as stable as possible. A tripod is the best solution, but if you do not have one, you can take a picture of the sky simply by positioning the camera on the floor or on a table with the lens pointing up.

 

The ideal lens will be wide enough to cover as much of the sky as possible. For an APS-C a lens of 10 to 15mm is excellent. A full frame camera will be equipped with a lens between 14 and 20mm.

 

All that remains is to choose the exposure time. For a wide-angle picture, 30 seconds will be the limit not to be exceeded. With a longer exposure time, the stars are no longer in the aspect of a point, but are somehow stretched and take the appearance of a line.

 

For a different image you can also mount the camera on tripod and expose for a long time using the pose B (Bulb). This mode keeps the shutter open for more than 30 seconds. We can then point the camera to the north and see the stars turn around the polar star in exposures of up to an hour. But be careful: you need well charged batteries ...

 

 

 

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