ASA’s 12n F3.6 Wynne corrected Imaging Newtonian, these have a well deserved reputation As they combine speed with pretty good correction with large imaging sensors so what’s not to like
The great thing about these large aperture corrected newtonians when combined with big sensors, is you get a similar field of view to small 70-100mm APO's but with a massive jump in resolution and detail. You could not hope to achieve this with small aperture telescopes and once tried a big fast newt you will come back for more!
CMOS Camera
The ZWO ASI-2600MM Pro Mono CMOS is one of Sony's new generation zero ampglow sensors. They are super sensitive with very low noise. Making them a paradym shift from the CCD cameras we are all used to using and require much shorter exposures
Pier-3 is a very fast F/3.6 when used with a CMOS sensor the longest exposure needed for this pier is 180 seconds
Sony IMX571
Back illuminated CMOS Sensor 23.5x15.7mm 6248x4176pixels 3.76µm
1.24° x 0.83°
0.72"/px 1x1 for Software Binning
1083mm Focal Length
F/3.6
30º Imaging Horizon Limits
Camera Position Angle: 179°
Recommended sub lengths
Filter
Bright
Dim
Lum
30-60s
60-120s
Red
30-60s
60-120s
Green
30-60s
60-120s
Blue
30-60s
60-120s
Ha
60-120s
120-180s
O3
60-120s
120-180s
S2
60-120s
120-180s
Calibration Files
This pier has a FREE calibration library, this includes a dark library that correlates to the most common subs lengths used, see below