Rotator M54/M54 16-20mm

Name: Askar Rotator M54/M54 16-20mm
Brand: Askar
Price: 199 USD

$ 199.00 incl. VAT plus shipping costs

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Express shipment possible for delivery the day after tomorrow, 20.12.2025!

Delivery possible before Christmas (European destinations) - when you order by 18.12.!
Right of return up to January 31 2026!

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Product questions?

advice for Astronomy

Product description

Extension tubes allow you to reach the perfect distance of focal point for photographic use.

In astrophotography, the working distance has a major influence on the quality of the image. Precise adjustment is therefore important. This "Backfocus Adjuster" makes this much easier.

With an average length of 18 mm, the working distance can be adjusted by ± 2 mm.

The adaptor is CNC-milled and has a 0.05 mm precision adjustment. The printed scale makes it easy to use.

Specifications

Capacity

Connection (to the telescope)

M54

Connector (at camera end)

M54

Optical length (mm)

16-20

General

Type

Adaptors

Type of build

Extension tube

Material

Aluminium

Product safety

Manufacturer: SHARPSTAR OPTICS CO.,LTD, 3/F, No.5 building , Science and Technology Center, No.79 Jin-Sui Road,, 314001 Zhe-Jiang, CN, http://www.sharpstar-optics.com

Responsible person: NIMAX GmbH, Otto-Lilienthal-Str. 9, 86899 Landsberg am Lech, DE, [email protected]