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 William Optics Uniguide 50mm guidescope and a ZWO ASI 220 MM mini 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
QHY 268 M
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-1 & RGB
Astronomik (6 nm)
ACCESSOIRES
Guiding scope
Guiding camera
WO Uniguide 50
ZWO 220 MM mini
Autofocus motor
Optional reducer
ZWO
Askar 0.7x
Settings for Broadband Subframes
Imaging Mode
Gain & Offset
Exposuretime
HCG
G 0 & O 25
L-1 90s /// RGB 240s
Settings for Narrowband Subframes
Imaging Mode
Gain & Offset
Exposuretime
HCG
G 56 & O 25
300s
© 2023 Created with Royal Elementor Addons
© 2023 Created with Elementor
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