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Telescope

AD250 Corrected Dall-Kirkham

Camera

ZWO ASI-1600MM Pro Mono CMOS

Mount

10 Microm GM1000

Pier-1 Equipment List

Telescope
AD250 10" F/6.8 Dall Kirkham
Mount
10 Microm GM1000
Camera
ZWO ASI-294MM Pro Mono CMOS
Filter Wheel
7 Position
Filters
ZWO LRGB Ha-7nm o3-7nm s2-7nm
Guide Camera
ZWO ASI-174
Guider
OAG Integrated
Focuser
FLI Atlas
Power & Dew Control
HitecAstro MHP

Telescope

At 1678mm this telescope is a brilliant step into medium/long focal length imaging when combined with a smaller 4/3rds sensor. It’s perfect for getting up close and  personal with many of the smaller nebulas and galaxies as well as taking higher resolution shots of interesting sections within much larger ones. It’s a corrected Dall Kirkham with a nice flat field.

If you are a member of one of our Wide-field Syndicates like Pier 13/14 then this scope would complete your needs for multi season imaging as it will take you through galaxy season as well as allow you a whole year of Globs, Planetary Nebs, Boks & Abell's to mention a few things :) :)


CMOS Camera

Just in case you have never used CMOS and have been using CCD like the rest of us for the last million years then let me tell you it requires a different approach, you can forget long subs as the are not needed and at most times detrimental to your image quality. Allowing for CMOS’s sensitivity, higher dynamic range and super low read noise broadband imaging typically 60s is ample and 120s for narrowband, you just needs a lot more of them of course.

Please note: The maximum sub length we will do on this pier is 300s.

Sony IMX492

4/3" CMOS Sensor
21.7mm Diagonal
4144x2822 pixels
4.63µm

  • 0.66° x 0.45°

  • 0.57 "/px

  • 1678mm Focal Length

  • F/6.8

  • 30º Imaging Horizon Limits

  • Camera Position Angle: -°

  • Recommended sub lengths

FilterBrightDim
Clear
n/a

n/a

Lum
30-60s

60-180s

Red
30-60s

60-180s

Green
30-60s

60-180s

Blue
30-60s

60-180s

Ha
60-120s

120-300s

O3
60-120s

120-300s

S2
60-120s

120-300s

Calibration Files

  • 10s Darks

  • 20s Darks

  • 30s Darks

  • 45s Darks
  • 60s Darks
  • 90s Darks

  • 120s Darks

  • 180s Darks
  • 240s Darks
  • 300s Darks

  • Flat Frames - L, R, G, B, Ha, o3, S2

This pier has a FREE calibration library, this includes a dark library that correlates to the most common subs lengths used, see below

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