M13 - The Hercules Globular Cluster
Another test on M13 using a Celestron CPC800 unguided and in alt-az mode this time with my new Sony A7r.
I wanted to see how the 33 megapixel sensor did at astrophotograhpy. Later in the year when M42 is around, I'll see how it does with nebulosity.
10 x 10 sec exposures for a total of 1m40s using an unmodifed A7r @ ISO 1600, focus eyeballed using the camera LCD screen. Registered and stacked with DeepSkyStacker.
M13 - The Hercules Globular Cluster
Another test on M13 using a Celestron CPC800 unguided and in alt-az mode this time with my new Sony A7r.
I wanted to see how the 33 megapixel sensor did at astrophotograhpy. Later in the year when M42 is around, I'll see how it does with nebulosity.
10 x 10 sec exposures for a total of 1m40s using an unmodifed A7r @ ISO 1600, focus eyeballed using the camera LCD screen. Registered and stacked with DeepSkyStacker.