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QHYCCD 5mm M54-M54 Threads Adapter

QHYCCD 5mm M54-M54 Threads Adapter

par QHYCCD
UGC QHY-020134
CA$11.00 - CA$11.00
CA$11.00
CA$11.00 - CA$11.00
CA$11.00
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  • Adds exactly 5mm of optical path length
  • Connects M54 threaded components
  • M54 threads on both sides
  • Essential for select QHY268M & QHY600M camera setups
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Warranty

  • 5mm M54-M54 Threads Adapter

    The 5mm M54-M54 Threads Adapter provides exactly 5mm of optical path length, allowing you to achieve precise back focus spacing in your imaging train. This adapter is part of QHYCCD's Combo B1 and C1 kits for the QHY268M and QHY600M, where it lets the output end in M54 threads.

    Achieve Precise 5mm Spacing for QHY Cameras

    This adapter addresses a common back focus requirement by adding a fixed 5mm of space to any M54 threaded connection. It is the official component included in the B1 and C1 adapter kits for the QHY268M and QHY600M-PH SBFL cameras shipped since June 2023. If you purchased your camera before this date or require a replacement, this adapter ensures you can achieve the correct spacing for a flat, sharp field with your specific optical configuration.

  • Do I need the 5mm M54-M54 adapter for my QHY268M camera purchased in 2022?

    Yes, very likely. This 5mm M54-M54 adapter was officially included in camera packages starting in June 2023. If you bought your QHY268M or QHY600M before that date and are using the B1/C1 adapter configurations, you will need to purchase this part separately to achieve the correct back focus.

    How do I use the 5mm M54-M54 adapter to connect my QHY600M to an M54 filter wheel?

    In QHYCCD's Combo B1 and C1 kits, this adapter lets you terminate the output of the imaging train in M54 threads instead of M48, for 55mm or 56mm back focus. Follow QHYCCD's B1/C1 kit instructions for its exact position in the train.

    What is the exact spacing provided by this 5mm M54-M54 adapter?

    This adapter provides exactly 5mm of spacing (optical path length). It is precision-machined to this tolerance to ensure accurate back focus calculations.

    What are the thread types on the 5mm M54-M54 adapter?

    It is an M54-M54 adapter, with M54 threads on both sides; which side is male and which is female is not stated.

    Is this 5mm M54-M54 adapter included with new QHY cameras?

    Yes, since June 2023, the 5mm M54-M54 adapter is included as part of the Combo B1 and C1 adapter kits that ship with the QHY268M and QHY600M-PH SBFL (Combo B1) and QHY600M-PH (Combo C1) camera packages. This listing is for users who need to purchase it separately.

    Why is a 5mm spacer like this M54-M54 adapter important?

    Modern correctors, flatteners, and reducers require a very specific distance to the camera sensor to produce sharp stars across the entire field of view. An error of even a millimeter can introduce distortion. A 5mm spacer like this adapter is a fundamental tool for precisely hitting that target distance when the camera and other accessories don't add up to the exact number required.

  • Optical Length 5mm
    Threads M54 to M54
    Primary Compatibility QHY268M / QHY600M-PH SBFL Cameras (Adapter Kits B1 & C1)

    • 5mm M54-M54 Threads Adapter

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  • QHYCCD Warranty