We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Gold anodised aluminium T-2 fine-adjustment ring, 1 mm thick

Baader Planetarium

Baader Planetarium T-2 Fine-Adjustment Ring 1mm Gold

SKU CH-H8Y2-PM3QH

A 1 mm gold-anodised aluminium ring provides fine focus adjustment for T-2 threaded astronomy accessories

  • Precision focus with 1mm fine-adjustment for critical imaging and visual astronomy
  • Secure T-2 (M42 x 0.75) threaded integration for adaptable accessory connections
  • Sharper astronomical images through precise spacing adjustments that minimize aberrations
  • Durable aluminum construction maintains alignment during frequent adjustments and transport
  • Gold color-coding identifies 1mm thickness among .3 and .5 options for quick selection

T-2 Fine-Adjustment Ring 1mm Gold

This 1mm thick aluminium ring provides precise spacing control for T-2 (M42 x 0.75) threaded astronomy components. It enables exact focus alignment for critical imaging and visual setups while preventing binding between connected accessories. The gold colour coding identifies the 1mm thickness among the available .3, .5 and 1mm options.

Suited for imagers needing exact back-focus

Astronomers who require fine spacing increments in a T-2 optical train will benefit from the precise 1mm adjustment. Users working with non-T-2 thread standards or those needing continuous variable adjustment rather than fixed shims should consider alternative solutions.

Critical spec: 1mm T-2 (M42 x 0.75) shim

The single deciding factor is whether your setup uses T-2 threads and requires exactly 1mm of additional spacing. Verify your instrument's thread specification and required back-focus distance before purchase.

Highlights

  • Precision focus with 1mm fine-adjustment for critical imaging and visual astronomy
  • Secure T-2 (M42 x 0.75) threaded integration for adaptable accessory connections
  • Sharper astronomical images through precise spacing adjustments that minimize aberrations
  • Durable aluminum construction maintains alignment during frequent adjustments and transport
  • Gold color-coding identifies 1mm thickness among .3 and .5 options for quick selection

Specifications

No published specifications for this item yet.

Questions about this item

How can I confirm the 1mm T-2 fine-adjustment ring is working correctly after threading it into my M42 x 0.75 setup?

When installed, the gold-anodised ring should rotate smoothly to shift the optical path by exactly one millimetre, letting you reach sharp focus without binding between the two T-2 components.

What comes in the box with the gold 1mm ring and what must I supply myself?

The package contains only the single 1mm gold aluminium fine-adjustment ring; you must provide the T-2 threaded telescope accessories, eyepieces or camera adapters that will thread onto its M42 x 0.75 faces.

Which colour-coded thickness should I choose — 0.3 mm black, 0.5 mm red or 1mm gold?

Select the gold 1mm ring when you need a full millimetre of spacing adjustment; choose the red 0.5 mm or black 0.3 mm rings for finer increments instead.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.