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Rho - an example of Camera Tilt, 



    
        

            Jonathan W MacCollum
Powered byPixInsight

Rho - an example of Camera Tilt

Rho - an example of Camera Tilt, 



    
        

            Jonathan W MacCollum
Powered byPixInsight

Rho - an example of Camera Tilt

Technical card

Imaging telescopes or lenses: Rokinon 135mm f/2.0 ED UMC

Imaging cameras: ZWO ASI071MC Pro

Mounts: Celestron CGEM

Software: PixInsight PinInsight 1.8.5  ·  Isbeorn N.I.N.A.

Accessory: Skywatcher 2" Coma Corrector f/4  ·  Geoptik Nikon F Mount Adapter


Dates:May 13, 2019

Frames: 143x60" (2h 23')

Integration: 2h 23'

Avg. Moon age: 8.97 days

Avg. Moon phase: 66.52%


Astrometry.net job: 2701554

RA center: 16h 26' 58"

DEC center: -26° 1' 47"

Pixel scale: 7.603 arcsec/pixel

Orientation: -89.420 degrees

Field radius: 6.167 degrees


Resolution: 4878x3210

Data source: Backyard

Description

After drying out my desiccants to remove the moisture buildup many screws in the camera wouldn't tighten anymore as if they had been overtightened when manufactured. I've worked with zwo support to diagnose the issue and it's now on its way in for repair.

Wanted to share the results of the camera tilt adapter using only two out of the three screws. Notice how uniformly the stars have res halos on the bottom half and blue halos on the top half... Also notice the stars flaring outwards on the bottom two corners and the stars circling around on the top corner.

With the 135mm f2 lens (at f2) this shows the two different mis-focus regions caused by the tilt.

Comments

Revisions

  • Final
    Rho - an example of Camera Tilt, 



    
        

            Jonathan W MacCollum
    Original
  • Rho - an example of Camera Tilt, 



    
        

            Jonathan W MacCollum
    B

B

Description: Tilt from one screw not being able to tighten.

Uploaded: ...

Sky plot

Sky plot

Histogram

Rho - an example of Camera Tilt, 



    
        

            Jonathan W MacCollum