Stacking Starlight

Choosing a complete first deep-sky rig (how the pieces fit)

Buying a first imaging setup is really about getting the **balance** right between mount, scope, and camera — not maximizing any one. This page is the decision order and how the pieces constrain each other.

1. Spend in the right order

  1. Mount first. It's what makes long exposures possible; budget the largest share here. See

choosing a mount for your payload.

  1. Scope to match the mount and your targets. A short refractor is the most forgiving start. See

choosing a telescope.

  1. Camera to match the scope (sampling, image circle). See choosing a camera.
  2. Guiding + filters as the next layer. See guiding and filters.

2. The balance trap

The most common first mistake is a great scope on an under-sized mount: stars won't stay round no

matter what. Keep the imaging payload at ~60–70% of the mount's rating. A modest scope on a capable

mount beats the reverse every time.

3. A coherent beginner rig (illustrative — confirm models)

  • Mount: ~10 kg-class imaging GEM (or strain-wave for travel), guiding-capable.
  • Scope: 60–80 mm APO refractor + matched flattener.
  • Camera: cooled OSC sized to the scope's image circle.
  • Guiding: small guide scope + small-pixel guide camera (short FL — see guiding).
  • Filter: a dual-band narrowband if your sky is light-polluted.

4. What you can defer

Autofocus motor, filter wheel, mono + full filter set — all are upgrades you can add once the core

rig produces round stars and clean subs.

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The full gear chain explained: astrophotography equipment guide.