Camera SetUps

The cameras for Planets/Moon/Sun ASI290MM/ASI183MM/ASI294MM (mono) and for DeepSky the mono cameras SBIG STX-16803 plus SBIG Guider Cam external (linked to the telescope ED80)

ASI 290 MM Mono Camera (2x) (V1: Sun Bright Field -detailed- / V2: H alpha -detailed-), (Planets)

FC Settings:

V1 BF xx fps / xx ms, xx gain, USB Traffic 100% + V2 Ha 45fps / 16 ms, 350 gain, USB Traffic 90%

V1 Planets xx fps /xx ms, xx gain, USB Traffic 100%

ASI 183 MM Mono Camera (2x) (V1.2: Sun Bright Field -wide- / V2.2: H-alpha -wide-), (Moon -detailed-)

FC Settings:

V1 BF xx fps / xx ms, xx gain, USB Traffic 100%

V2 Ha max (8 -> 9) fps / 21 ms, 350 gain, USB Traffic 82%

V1 Moon 15,7 fps /xx ms, xx gain, USB Traffic 100%

ASI 294 MM Mono Camera (Moon -wide-)

FC Settings:

V1 Moon max 14,7 fps /xx ms, xx gain, USB Traffic 90%

Each Camera has in front of the CCD Chip a Clear filter to prevent the contamination with dust and to protect the internal electronic from dew

SBIG16803 Mono Camera

Remote Guider Head on telescope ED80 with the same Chip as the internal STX-16803 Guider Chip

Projection SetUps

* Moon

* Sun 'bright light' with Baader AstroSolar® Safety Film OD 5.0 in front of telescope P Keller/ASA400

* Planets

I use the telescope ASA400 partially in combination with FFC fluorid flatfield projection converter

* H-alpha Sun Projections

Never look directly with your eyes into the sun or you irreparably damage your eyes!

For the Sun H-alpha (filter SolarContinuum SC 0.2A) fotographie, the Telezentric Units of Baader TZ3, TZ4 are available and they are used in combination with my Evostar conversion ED150 Skywatcher telescope (well corrected for the H alpha light)

D-ERF (Dielectric coated Energy Reflection Filter) in front of ED150 and Telezentric Projection SetUps

(Optimal focal lenghts ratio's > 30)

image-12389084-DERF_120mm_opened-c9f0f.w640.jpg

D-ERF 120mm reduced aperture for TZ-3 (f30/ 3600mm)

D-ERF 150mm full aperture for TZ4 (f32/ 4800mm)

Telezentric projection Units TZ-3, TZ-4 always in combination with CCD Cameras

https://www.baader-planetarium.com/de/sonne/h-alpha/telezentrisches-system-tz-4-(4-fache-brennweite).html

Specific optical distances are required for the various setups

Newton Rings Problem ASI290MM during H-alpha Projections

image-12398108-Masterflat_6-16790.w640.jpg

A strong Newton Ring pattern is visible in the Master Flat. It is successfully removed by AutoStackert!

image-12321647-ASI290MM_Mono-d3d94.w640.png

The Camera ASI 290MM generates directly on the surface of the CCD Chip a Newton Ring Pattern as shown on the left site. In order to correct it, a 60 sec video was converted to a Flat frame after each Video session/ motive and substracted in AutoStakkert!

Master Flat for Sun Bright Field, H-alpha and Moon. It is succesfully applied to the images and the grid and Newton Rings disappear.

The Camera ASI 183MM generates a hardly visible Newton Ring pattern and very weak grid pattern on the CCD surface. Here used in combination with the H-alpha 19mm SS Filter. No Vignetting visible due to the careful selection of the Chip size.

image-12401348-Master_Flat_ASI_294_an_19mm_Halpha_-e4da3.jpg

The ASI 294MM is not useful for my H-Alpha imaging (19mm filter size) due to a strong Vignetting by the filter on the big CCD Chip..

image-12401360-ASI294MM_Mono-6512b.w640.png

The Camera ASI294MM generates a weak visible Newton Ring pattern. It was tested in combination with the H-alpha 19mm Filter. A strong Vignetting is visible due to the big Chip size in long distance to the filter. So I use it mainly for the imaging of Moon

* Field of View (FOV) and Mosaik calculations for the imaging sessions (by TheSky6)

ASI 290MM, ASI 183MM, ASI 294MM

Sun Bright Field /H-alpha Moon