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Cylindrical metal adapter, matte black finish, 2.7 inch to M68 threads, 64mm clear aperture, 2mm thick

Baader Planetarium

Baader Planetarium 2.7" AP to M68 Zeiss Adapter 64mm 2mm

SKU CH-JZ97-GFQJ5

Connects 2.7" Astro-Physics lenses to M68 Zeiss eyepieces with a 64mm clear aperture and only 2mm optical length

  • Connects 2.7" Astro-Physics lenses to M68 Zeiss eyepieces and cameras
  • Reducing piece bridges different thread sizes for versatile telescope and camera setups
  • Minimal 2mm optical tube length reduces light path obstruction
  • Generous 64mm clear aperture prevents vignetting and maximizes light throughput
  • 8 inch adapter length preserves image quality and reduces potential aberrations

Astro-Physics to Zeiss Thread Adapter

This adapter connects 2.7" Astro-Physics internal threads to M68 Zeiss external threads, letting astrophotographers combine lenses and cameras from different systems. It functions as a reducing piece that bridges the two thread standards for a secure mechanical connection.

2mm Optical Length and 64mm Clear Aperture

The adapter adds only 2mm of optical tube length, which keeps light-path obstruction to a minimum and helps preserve image quality. A 64mm clear aperture prevents vignetting and maximizes light throughput for brighter, sharper results.

Verify Thread Standards Before Ordering

Confirm that your lens presents a male 2.7" Astro-Physics thread and that your eyepiece or camera accepts a female M68 Zeiss thread. The adapter will not fit other thread pitches or diameters, so matching both sides exactly is essential.

Highlights

  • Connects 2.7" Astro-Physics lenses to M68 Zeiss eyepieces and cameras
  • Reducing piece bridges different thread sizes for versatile telescope and camera setups
  • Minimal 2mm optical tube length reduces light path obstruction
  • Generous 64mm clear aperture prevents vignetting and maximizes light throughput
  • 8 inch adapter length preserves image quality and reduces potential aberrations

Specifications

No published specifications for this item yet.

Questions about this item

How does the 2.7" Astro-Physics internal thread connect to M68 Zeiss equipment?

The adapter converts a male 2.7" Astro-Physics thread to a female M68 Zeiss thread, joining those two specific thread standards directly.

What clear aperture and optical length does the 64mm adapter add to the light path?

It provides a 64mm clear aperture and adds only 2mm of optical tube length, minimising obstruction and vignetting.

Which side of the 2.7" AP to M68 Zeiss adapter threads onto the telescope and which accepts the eyepiece?

The male 2.7" Astro-Physics end screws into the telescope focuser; the female M68 Zeiss end receives the eyepiece or camera.

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