Skip to content

Language

Country

IDAS AD19.4 Drop-in Filter Adapter for RASA 8

by IDAS
SKU IDA-AD19.4
Original price CA$347.00 - Original price CA$347.00
Original price
CA$347.00
CA$347.00 - CA$347.00
Current price CA$347.00
Price Match Policy!
  • Adapter for the Celestron RASA 8, camera end for ZWO cameras with a 6.5mm flange back
  • Enables use of IDAS Di2 drop-in filters
  • Female M42 telescope end (6.5mm thread depth), female M42 tapered ring on the camera end
  • Includes 0.1mm and 0.2mm stainless steel spacers for fine adjustment
Backordered
Availability Info
Qualifies for FREE Shipping in Canada on orders over $500.
Vignetting Calculator

Will your imaging train vignette?

Check which filter and adapter sizes clear the sensor with the IDAS AD19.4 Drop-in Filter Adapter for RASA 8, and how much light the corners lose.

Check vignetting
  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty
  • IDAS AD19.4 Drop-in Filter Adapter for RASA 8

    The IDAS AD19.4 Drop-in Filter Adapter is made for the Celestron RASA 8 and is designed exclusively for IDAS Di2 drop-in filters. The camera end is a female M42 tapered ring for ZWO cameras with a 6.5mm flange back. The package includes 0.1mm and 0.2mm stainless-steel spacers.

    RASA 8 to 6.5mm Back-Focus Camera Integration

    The telescope end is a female M42 thread with a 6.5mm thread depth. The camera end is a female M42 tapered ring (TR) for ZWO cameras with a 6.5mm flange back. Four short and four long screws are included for camera rotation alignment and for fixing the tapered ring; use one set or the other depending on your configuration.

    Exclusive Compatibility with IDAS Di2 Drop-in Filters

    The core function of the AD19.4 is to house IDAS Di2 (drop-in) filters. This adapter is exclusively designed for this filter format and will not accept other filter types. IDAS Di2 filters include the ODW Di2, NGS1 (ex LPS-D3) Di2, HEUIB-II Di2, NB1 Di2, NB3-PM Di2 and NB12 Di2. The NB3-PM Di2 and NB12 Di2 must be used with a camera that has a UV/IR-blocking filter, or with an IDAS ZF filter (NGS1 ZF, NB1 ZF or HEUIB-II ZF) between the tapered ring and the camera.

    Precision Spacing with 0.1mm and 0.2mm Shims

    The package includes two stainless-steel spacers, 0.1mm and 0.2mm thick. When you add a ZF filter, the optical path length can be adjusted by placing the spacer ring(s) between the M42 tapered ring and the camera, or between the RASA 8 and the AD19.4 body.

  • What is the IDAS AD19.4 adapter designed for?

    The IDAS AD19.4 is specifically designed to be used on a Celestron RASA 8 with ZWO cameras that have a 6.5mm flange back. Its primary purpose is to enable the use of IDAS Di2 drop-in filters within the optical train.

    Can I use non-IDAS filters with the IDAS AD19.4 adapter on my RASA 8?

    No. The IDAS AD19.4 adapter is exclusively designed for the IDAS "Di2" drop-in filter format.

    Why does the IDAS AD19.4 kit include 0.1mm and 0.2mm spacers?

    The stainless-steel spacers are included for fine-tuning the optical path length. They adjust the optical path length when you add a ZF filter, placed between the tapered ring and the camera or between the RASA 8 and the adapter body.

    How do I install my ZWO camera onto the IDAS AD19.4 adapter?

    The adapter includes a female M42 tapered ring (TR) designed for ZWO cameras with 6.5mm back focus. The package includes four short and four long screws for camera rotation alignment and for fixing the tapered ring; use one set or the other depending on your configuration. See the installation manual in the Downloads tab.

  • Brand IDAS (ICAS Enterprises, Japan)
    Designed For Celestron RASA 8
    Compatible Filters IDAS Di2 drop-in filters only (ODW Di2, NGS1 Di2, HEUIB-II Di2 and other IDAS Di2 filters)
    Telescope Connection Female M42 (thread depth 6.5mm)
    Camera Connection Female M42 tapered ring (TR) for ZWO cameras with 6.5mm flange back
    • AD19.4 (M42) main body

      × 1

    • Female M42 tapered ring (TR)

      × 1

    • Stainless-steel spacer 0.1mm

      × 1

    • Stainless-steel spacer 0.2mm

      × 1

    • Short screws

      × 4

    • Long screws

      × 4

  • Contact us for warranty details.