Gear
/// Widefield setup
This is my widefield setup for astrophotography. The optics of the setup consists of a Askar FRA 500. This refractor has a diameter of 90 mm and a native focal lenght of 500 mm. I own a the 0.7x reducer aswell. This piece of equipment reduces the Focalratio to F/3.9 and 351 mm focallenght. The telescope is mounted on a Skywatcher HEQ5 pro. For guiding the mount I use PHD2, a Skywatcher EvoGuide 50ED guidescope and a ZWO ASI 290 MM camera.
TELESCOPE
Model
Aperture
Askar FRA 500
90 mm
F-ratio
Focal lenght
5.6 / 3.9
500 mm / 351 mm
CAMERA
Model
Pixels
Pixelsize
veTEC 571c
6’224 x 4’168
3.76 μm
Pixel scale
Field of view
1.55 arcs/px @ F/5.6
2.21 arcs/px @ F/3.9
2.69° x 1.80° @ F/5.6
3.82° x 2.56° @ F/3.9
MOUNT
Model
Max. capacity
HEQ5 Pro
10 kg
FILTER
Broadband
Narrowband
Astronomik L-2
Optolong L-eXtreme
ACCESSOIRES
Guiding scope
Guiding camera
EvoGuide 50ED
ZWO 290 MM
Autofocus motor
Optional reducer
ZWO
Askar 0.7x
Settings for Lum Subframes
Imaging Mode
Gain & Offset
Exposuretime
LCG
G 100 & O 500
180s
Settings for L-eXtreme Subframes
Imaging Mode
Gain & Offset
Exposuretime
HCG
G 100 & O 500
300s
/// Sensor analysis Omegon veTEC 571c
