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RedCat Collimation Dec-2020, Steven Bellavia

RedCat Collimation Dec-2020

RedCat Collimation Dec-2020, Steven Bellavia

RedCat Collimation Dec-2020

Description

These are results after several rounds of collimating the front lens cell and rear tilt-plate on my William Optics RedCat, 51mm, f/4.9 Petzval refractor.

All adjustments are done indoors, with a custom-made artificial star (A 20 micron pinhole with a diffuse backlit light source).

An APS-C camera was used for collimation and a ZWO ASI183MC camera used for the final image

Comments

Revisions

    RedCat Collimation Dec-2020, Steven Bellavia
    Original
    RedCat Collimation Dec-2020, Steven Bellavia
    B
    RedCat Collimation Dec-2020, Steven Bellavia
    C
    RedCat Collimation Dec-2020, Steven Bellavia
    D
  • Final
    RedCat Collimation Dec-2020, Steven Bellavia
    E

B

Description: 9-panel mosaic of artificial star

Uploaded: ...

C

Description: 9 panel mosaic of NGC 7789

Uploaded: ...

D

Description: FWHM and Eccentricity contours of NGC 7789

Uploaded: ...

E

Description: Uncropped image of NGC 7789 , Dec-06, 2020, after collimation and tilt plate adjustment

Uploaded: ...

Histogram

RedCat Collimation Dec-2020, Steven Bellavia