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How do I remove “pixel trails” in my stacked astro images?

by admin | Nov 7, 2019 | Troubleshooting

This image shows “Pixel trails” (AKA pixel rain, walking/creeping/directional noise). This pattern can appear in stacked images composed of sub-frames imaged with the same camera on the same night. The final image looks “streaky” with little...

Howto adjust sensor reducer flattener spacing for better star shapes

by admin | Oct 7, 2019 | Instructions and Howto

Many astro photographers use field-flatteners or reducer-flatteners to make stars appear more rounded at the edges of the field of view. Reducers and field flatteners have an optimum spacing between the camera sensor, and the rear of the unit. The optimum spacing...

Hypercam Sensor to Flange Spacing (Backfocus) & USB Port Diagrams

by admin | Oct 1, 2019 | Instructions and Howto

Hypercam PRO TEC Cooled cameras have different sensor spacing to fan-cooled cameras.   The LED Status indicators show the following information: PWR: ON when camera is powered by external 12V DC power supply. SYS: ON when camera is started in software. TEC: ON...

Altair Hypercam TEC and Fan Cooled Quickstart PDF Sheet (Printable)

by admin | Oct 1, 2019 | Quickstart

Quickstart Printable PDF Instructions - Hypercam Fan Cooled & TEC Cooled CamerasDownload the Printable PDF Quickstart sheet included with Hypercam Fan Cooled and TEC Cooled Cameras  Download...

Quantum Efficiency, Read Noise, and why are they important

by admin | Oct 1, 2019 | Imaging concepts

In essence CMOS sensors convert light falling on them in to numbers representing brightness levels, and their location on a grid of tiny little detectors called pixels. Each step in a “unit” of brightness on a pixel is expressed as a positive number. The...
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