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Pier-4 Equipment List

Telescope
ASA 12N F/3.6 Wynne Corrected Newtionian
Mount
Paramount ME
Camera
ZWO ASI-2600MC Pro Colour CMOS 1x1 Binned
Filter Wheel
ZWO 5 Position
Filters
OSC, RGB, Ha/O3 & S2/O3
Guide Camera
N/A
Guider
Zwo 174 Mini
Focuser
ASA Ok3z
Power Control
HitecAstro MHP V4

Telescope

The much sort after ASA 12n F.3.6, it's not manufactured any more and is a peach of a focal length with superb optics.

Pier-4 is a very fast F/3.6 when used with a CMOS sensor the longest exposure needed for this pier is 300 seconds

CMOS Camera

The ZWO ASI-2400MC Pro Colour 35mm CMOS is a superb camera with the perfect pixel size to suit this scope

Combine this with the IDAS D3 filter for RGB and Askar Colour magic D Ha/O3 & S2/o3 filters for narrowband, and it's a winning combination

Sony IMX410

Back illuminated CMOS Sensor
36x24mm
6072x4042pixels
5.94µm

Bayer Matrix Parameters

RGGB

  • 1.91° x 1.27°

  • 1.13 "/px

  • 1087mm Focal Length

  • F/3.6

  • 30º Imaging Horizon Limits

  • Camera Position Angle: 268°

  • Recommended sub lengths

FilterBrightDim
OSC
30-60s

60-20s

RGB
30-60s

60-180s

Ha/03
60-120s

120-300s

S2/03
60-120s

120-300s

Calibration Files

The following calibration files are available as standard with this system. Other darks are available upon request.

  • 10s Darks

  • 20s Darks
  • 30s Darks

  • 45s Darks
  • 60s Darks

  • 90s Darks

  • 120s Darks

  • 180s Darks

  • 240s Darks

  • 300s Darks

  • Bias Frames

  • Flat Frames

  • Filter Charactristics

Although Pier-4 has a OSC Camera we have also added some modern Dual/Triband fiters designed for narrowband imaging etc
RGB filter we used the - IDAS LPS-D3 Filter -

The IDAS LPS-D3 filters enhance the contrast of astronomical emission nebulae against a sky with both man-made and natural* sky glow sources, yet preserve the colour balance of broadband objects such as galaxies. As with other IDAS interference filters, the bandpasses are designed to accommodate the steep ray angles of fast optical systems.

Narrowband filters we used the - Askar Colourmagic HA/OIII  & SII/OIII 6nm

The filter enables the capture of the three main emission nebulae bands using two different filters, whilst suppressing unwanted light pollution. It enables you to capture cleaner data and reduces the post-processing efforts to isolate faint details from the background light pollution.

These use of these filters will allow you to HOS palette & enhance your standard broadband images with increased H2 regions etc - What's not to like with that :)

Bayer matrix

When you receive your data, at first glance it may appear green, this is normal because One shot colour cameras have a bayer matrix over the sensor, this particular sensor has a RGGB bayer matrix and you will need to de-bayer it as part of your calibration and stacking process in your chosen software.

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