TS Optics Bahtinov Focusing Mask for 250–290 mm Outer Diameter | PixelSkiesAstro
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  • TS Optics Bahtinov Focusing Mask for 250–290 mm Outer Diameter | PixelSkiesAstro
  • TS Optics Bahtinov Focusing Mask for 250–290 mm Outer Diameter | PixelSkiesAstro

TS Optics Bahtinov Focusing Mask for 250–290 mm Outer Diameter

39,00 €
Bruttopreis

TS-Optics Bahtinov focusing mask — 250–285 mm outside diameter This Bahtinov mask fits telescope dew shields or camera lenses with an outside diameter from 250 to 285 mm. Select it by the physical attachment diameter, not the optical aperture.

Manufacturer model: TS-Optics Bahtinov focusing mask — 250–285 mm outside diameter · Specifications checked against manufacturer data on 2026-11-04

TS-Optics Bahtinov focusing mask — 250–285 mm outside diameter

This Bahtinov mask fits telescope dew shields or camera lenses with an outside diameter from 250 to 285 mm. Select it by the physical attachment diameter, not the optical aperture.

Focusing procedure

Fit the mask, point at a suitable star and view the diffraction pattern on the camera. Adjust focus until the central spike sits midway between the other two spikes, then remove the mask before recording the target.

Construction and fit

The black plastic mask is secured by three screws with protective covers. The manufacturer’s upper limit is 285 mm; fit at 286–290 mm is not specified, despite the existing store title.

TS-Optics manufacturer documentation

Compatibility notes

Manufacturer fitting range is 250–285 mm outside diameter. Store title says 250–290 mm and is unchanged; fit at 286–290 mm is not claimed.

56839

Technische Daten

Befestigung
Three screws with protective plastic/rubber covers
Passender Außendurchmesser (mm)
250–285
Artikel
Bahtinov Mask
Vom Hersteller genannte Ausrüstung
TS Bahtinov Mask 3 screws covered in rubbery plastic for attachment
Herstellerteilenummer
TSBahtinov250
Material
Plastic
Modell
TS-Optics Bahtinov focusing mask — 250–285 mm outside diameter
Zweck
Camera focusing on a star using a diffraction pattern
Geeignet für
Telescopes and lenses with 250-285 mm diameter

Besondere Bestellnummern

Hersteller-Teilenummer (MPN)
TSBahtinov250
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