M 13 Globular Cluster (first exposure)

Digital camera: Nikon D1
Sensitivity: ISO 1600
Telescope: Astro-Physics StarFire EDF 6.1" f/7.5
Focal length: 1238mm f/7.5
Exposure: 30 sec.

M 13 Globular Cluster (second exposure)

Digital camera: Nikon D1
Sensitivity: ISO 1600
Telescope: Astro-Physics StarFire EDF 6.1" f/7.5
Focal length: 1238mm f/7.5
Exposure: 30 sec.

Dark Frame - 30 seconds

Digital camera: Nikon D1
Sensitivity: ISO 1600
Telescope: Astro-Physics StarFire EDF 6.1" f/7.5
Focal length: 1238mm f/7.5
Exposure: 30 sec.

M 13 - Dark subtracted

Digital camera: Nikon D1
Sensitivity: ISO 1600
Telescope: Astro-Physics StarFire EDF 6.1" f/7.5
Focal length: 1238mm f/7.5
Exposure: 30 sec.

M 13 - Two exposures dark subtracted and co-added

Digital camera: Nikon D1
Sensitivity: ISO 1600
Telescope: Astro-Physics StarFire EDF 6.1" f/7.5
Focal length: 1238mm f/7.5
Exposures: 2 x 30 sec.

M 27 - Planetary Nebula

Digital camera: Nikon D1
Sensitivity: ISO 1600
Telescope: Astro-Physics StarFire EDF 6.1" f/7.5
Focal length: 1238mm f/7.5
Exposure: 30 sec.

M 27 - Dark subtracted

Digital camera: Nikon D1
Sensitivity: ISO 1600
Telescope: Astro-Physics StarFire EDF 6.1" f/7.5
Focal length: 1238mm f/7.5
Exposure: 30 sec.

Trevignano Romano at night - 200mm unfiltered

Digital camera: Nikon D1
Sensitivity: ISO 1600
Lens: Nikkor AF-S 80-200mm f/2.8 D
Focal length: 200mm f/20
Exposure: 10 sec.

Dark Frame - 10 seconds

Digital camera: Nikon D1
Sensitivity: ISO 1600
Lens: Nikkor AF-S 80-200mm f/2.8 D
Focal length: 200mm f/20
Exposure: 10 sec.

Trevignano Romano at night - 200mm Dark subtracted

Digital camera: Nikon D1
Sensitivity: ISO 1600
Lens: Nikkor AF-S 80-200mm f/2.8 D
Focal length: 200mm f/20
Exposure: 10 sec.

Trevignano Romano at night - 130mm unfiltered

Digital camera: Nikon D1
Sensitivity: ISO 1600
Lens: Nikkor AF-S 80-200mm f/2.8 D
Focal length: 130mm f/20
Exposure: 20 sec.

Dark Frame - 20 seconds

Digital camera: Nikon D1
Sensitivity: ISO 1600
Lens: Nikkor AF-S 80-200mm f/2.8 D
Focal length: 130mm f/20
Exposure: 20 sec.

Trevignano Romano at night - Dark subtracted

Digital camera: Nikon D1
Sensitivity: ISO 1600
Lens: Nikkor AF-S 80-200mm f/2.8 D
Focal length: 130mm f/20
Exposure: 20 sec.