Inside the workshop

How we diagnose a telescope

Good service is a chain of evidence: inspect, isolate, measure, adjust, and verify the assembled instrument. These guides explain what we look for and why.

A fuzzy image is not a diagnosis. The cause may be optical, mechanical, thermal, atmospheric, or simply the wrong spacing. Our process is designed to keep those causes separate.

Workshop diagnostic decision treeA symptom is checked first against environment and setup, then mechanical repeatability, optical alignment, and finally surface or figure testing.soft or unstable imageseeing, temperature, dew,or accessory setup?repeatable with rotation,focus, or altitude?check mechanics and axes;collimate and re-testOnly persistent residuals proceed to lens/mirror metrology.
Diagnostic map. The workshop isolates environment and configuration before mechanical alignment, then reserves invasive optical work for repeatable residual errors. This prevents a transient seeing or support problem from being misreported as defective glass.
Reflective optics

Mirror Polishing, Figuring & Optical Testing

A bright coating is not the same thing as an accurate mirror. We separate surface condition, reflective coating, mirror figure, and whole-telescope performance.

Read the guide →Optical alignment

The Art of Telescope Collimation

Collimation is not “making the circles look centered.” It is aligning the optical axes under the mechanical and observing conditions in which the telescope must perform.

Read the guide →Refractive optics

Telescope Lenses: More Than Clean Glass

A refractor objective is a centered, spaced optical system. Cleaning one surface cannot correct decentering, wedge, element reversal, strain, or chromatic design limits.

Read the guide →Image-plane control

Focus, Back Focus & Focuser Performance

“It will not focus” can mean an unreachable focal plane, drawtube slip, image shift, tilt, backlash, incorrect spacing, thermal drift, or an optical problem. Each leaves a different signature.

Read the guide →Mechanical systems

Telescope Mounts: Stability, Motion & Tracking

A mount is part structure, part precision machine, and sometimes part control system. Good pointing means little if the load shifts, reversals hesitate, tracking oscillates, or vibration masks fine detail.

Read the guide →
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