QHY Adaptersets

QHY offers a very comprehensive and flexible adapter system that allows our cameras to achieve focus with a variety of accessories, including camera lens adapters, off-axis guiders, filter wheels and numerous optical systems. The many potential combinations of these items produce an equally large variety of back-focus distances that must be considered to make it all work together. This variety and flexibility, however, also can be confusing particularly for new users.This is one of the reasons why we at Baader Planetarium keep receiving customer inquiries on the subject of "How do I adapt my QHY camera to my telescope?"

How do I adapt my QHY camera to my telescope?

If you use a refractor, a Schmidt-Cassegrain or a Newtonian telescope WITHOUT any other special optical accessories in the optical path, the answer is simple. Since there are no requirements for a specific back focal length, the camera can be flanged to the focuser via a T2/2 inch adapter (standard T mount - thread size M42x0.75) or M48/2 inch adapter. The camera image is focused via the focuser and imaging can be started. Filter wheels and/or off axis guiders in the optical path - provided there is sufficient focus travel - do not play a role here.

The situation is different when special telescopes such as the Celestron RASA or Hyperstar systems are to be used, or optical accessories are inserted into the optical path in refractors or Newtonian telescopes. Both the fast (f/2.0) Celestron telescopes and special optical accessories require - if they are to provide perfect star images - a precisely maintained back focus value (BFL - Back Focus Length) between the additional optics and the sensor surface. Accessories include Multi Purpose Coma Correctors (MPCC) for Newtonian telescopes and focal reducers or field flatteners for refractors. This also includes lenses for Canon and Nikon DSLR cameras.

If, in addition to the simple camera adaptation, accessories such as a filter wheel and/or off-axis guider are added, the assembly of adapter rings can be quite tricky if a required back focus has to be kept to a few millimeters, and different camera models also have different mechanical distances between the camera body and the sensor surface (back focal distance). However, it is a great advantage that the required back focus distances of optical accessories is 55mm by default; this is the back focal distance of the old SLR cameras (the distance between the lens bayonet of the camera body and the film surface).

QHY Adapter Kits

We have therefore - together with QHY - put together a series of complete adapter sets (instead of single adapter rings) that cover 99% of all possible combinations with QHY cameras and accessories. All these adapter sets have a M48 female thread on the telescope side or a Canon/Nikon bayonet for connecting DSLR lenses. The direct telescope connection is then made via the Baader M48 adapter system or via the Baader M48/2 inch adapter.

As a user, you only need to know the selected camera model and any accessories, then you can select the required adapter combination from the table and order it from us. We will then directly deliver the calculated results and the corresponding adapters. Please note that the products shown in the graphics of the PDF file, such as cameras, filter wheels, Off Axis Guider modules, etc., are NOT included in the scope of delivery of the Combo, but only the required adapter rings and screws.

The PDF-file lists all kits which we will be offering in 2021.

Please note: After the release of these kits, many single adapters will for the most part (except a few models as shown in Table 3) no longer be available individually.


We offer the following QHY Adapter Kits:

Model QHYCCD product No.
Baader
product No.
Compatible with
achievable
Backfocus
Length (BFL)
and/or
adaptable lenses with the kit
included adapter
and screws
Note

QHY Adapter Kit A1 for QHY 294M / 163M

QHY Adapter-Kit A1 für QHY294M / 163M CFW3M-S und OAG

020100 1932710 QHY294M / 163M
CFW3M-US
OAG
55mm BFL
e-g. for MPCC
  • 1x 5mm M54 to M48 Adapter
  • 1x 3mm Spacer
  • 1x 0.5mm Spacer
  • 1x 10mm Spacer
  • 8x 22mm M3 screws
This Combo A1 is included
as a standard accessory
with the QHY294M

QHY Adapter Kit A2 for QHY 294M / 163M

QHY Adapter-Kit A2 für QHY294M / 163M CFW3M-S

020101 1932711 QHY294M / 163M CFW3S-US Canon EF
Lens
  • 1x 10mm M54 Canon EF Adapter
  • 1x 4mm Screwed Adapter M54
  • 1x 3mm Spacer
  • 1x 1mm Spacer
  • 1x Cam Top Adapter (QHY #020063)
  • 8x 10mm M3 screws

QHY Adapter Kit A3 for QHY 294M / 163M

QHY Adapter-Kit A3 für QHY294M / 163M CFW3M-US

020102 1932712 QHY294M / 163M CFW3M-S
OAG
Nikon F
Lens
  • 1x 10mm Nikon F Adapter M54
QHY Adapter-Kit B1 for QHY 268M / 600M ( Short BFL)
QHY Adapter-Kit B1 für QHY268M CFW3L OAG oder QHY268M CFW3M-US OAG
020103 1932720 QHY268M
CFW3L
OAG
or
QHY268M CFW3M-US
OAG
55mm BFL
e-g. for MPCC
  • 1x 5mm M54 to M48 Adapter
  • 3x 3mm Spacer
  • 1x 1mm Spacer
  • 1x 10mm Spacer
  • 8x 24mm M3 screws
  • 8x 28mm M3 screws
This Combo B1 is included
as a standard accessory
with the
QHY268M,
and QHY600 Short Back focus

QHY Adapter Kit B2 for QHY 268M

QHY Adapter-Kit B2 für QHY268M und CFW3L

020104 1932723 QHY268M
CFW3L
Canon EF
Lens
  • 1x 10mm Canon EF Adapter M54

QHY Adapter Kit B3 for QHY 268M

QHY Adapter-Kit B3 für QHY268M und CFW3L

020105 1932726 QHY268M
CFW3L
Nikon F
Lens
  • 1x 12mm Nikon F Adapter M54
  • 1x 0.5mm Spacer

QHY Adapter Kit C1 for QHY 600 PH

QHY Adapter-Kit C1 für QHY600M-PH CFW3L

020106 1932730 QHY600M-PH
CFW3L
55mm BFL
e-g. for MPCC
  • 5mm M54 to M48 Adapter
  • 7mm Spacer
  • 8x 14mm M3 screws
This Combo C1 is supplied
as a standard accessory
with QHY600M-PH

QHY Adapter Kit D1 for QHY 268C / 600C / 168C / 247C/ 128C / 410C / 367C

QHY Adapter-Kit D1 für QHY 268C / 600C / 168C / 247C /128C / 410C / 367C

020107 1932740 QHY 268C / 600C
168C / 247C /128C 410C / 367C
55mm BFL
e-g. for MPCC
  • 1x 5mm M54 to M48 Adapter
  • 1x QHY 2.5mm Filter Fixer for
    2" Filter #1932780 (QHYCCD prodcut No. 020055)
  • 1x 10mm Spacer
  • 1x 14mm Spacer
  • 8x 36mm M3 screws
This Combo D1 is supplied
as a standard accessory
with QHY600C
and QHY 268C
QHY Adapter Kit D2 for QHY 268C / 600C / 168C / 247C / 128C / 410 C / 367C
QHY Adapter-Kit D2 für QHY 268C / 600C / 168C / 247C /128C / 410C / 367C
020108 1932741 QHY 268C / 600C
168C / 247C / 128C 410C / 367C
Canon EF
Lens
  • 1x 10mm M54 Canon EF Adapter
  • 1x 4mm M54 Screwed-Adapter
  • 1x QHY 2.5mm Filter Fixer for
    2" Filter #1932780 (QHYCCD prodcut No. 020055)
  • 1x 3mm Spacer
  • 1x 1mm Spacer
  • 8x 14mm M3 screws

QHY Adapter Kit D3 for QHY 268C / 600C / 168C / 247C / 128C / 410C / 367C

QHY Adapter-Kit D3 für QHY 268C / 600C / 168C / 247C /128C / 410C / 367C

020109 1932742 QHY 268C / 600C
168C / 247C / 128C 410C / 367C
Nikon F
Lens
  • 1x 10mm M54 Nikon F Adapter
  • 1x 4mm M54 Screwed-Adapter
  • 1x QHY 2.5mm Filter Fixer for
    2" Filter #1932780 (QHYCCD prodcut No. 020055
  • 1x 3mm Spacer
  • 1x 0.5mm Spacer
  • 8x 16mm M3 screws
QHY All-In-One
Adapter Kit M42 for QHY 183M
QHY All-In-One Adapter-Kit M42 für QHY183M CFW3S-SR CFW3S-US OAGS
1932750 QHY183M
CFW3S-SR
CFW3S-US
OAGS
  • 1x 8mm M42 to M48 Adapter
  • 1x 3mm M42 Screwed-Adapter
  • 1x Cam Top Adapter (QHY #020063)
  • 1x 0.5mm/1mm/2mm/3mm/7mm/10mm Spacer
  • 8x 21mm M3 screws
  • 8x 10mm M3 screws
  • 8x 12mm M3 screws
QHY All-In-One Adapter Kit M54 for all CMOS KamerasQHY All-In-One Adapter-Kit M54 für alle CMOS Kameras, CFWM-SR CFWM-US CFWL OAGM 1932760 All CMOS cameras,
CFWM-SR
CFWM-US
CFWL
OAGM
  • 1x 5mm M54 to M48 Adapter
  • 1x 3mm M54 ti M42 Adapter
  • 1x QHY 2.5mm Filter Fixer for
    2" Filter #1932780 (QHYCCD prodcut No. 020055
  • 1x 4mm M54 Screwed-Adapter (QHY #020070)
  • 1x Cam Top Adapter (QHY #020063)
  • 1x 0.5mm/1mm/2mm/3mm/7mm/10mm/14mm Spacer
  • 8x 8mm M3 screws
  • 8x 10mm M3 screws
  • 8x 12mm M3 screws
  • 8x 14mm M3 screws
  • 8x 16mm M3 screws
  • 8x 21mm M3 screws
  • 8x 24mm M3 screws
  • 8x 28mm M3 screws
  • 8x 36mm M3 screws
  • 8x 50mm M3 screws

The following is an example of the QHY Adapter Kit D1 for a range of QHY cameras, off axis guiders and a back focus of 55 millimeters.

We hope to make the answer "How to adapt my QHY camera to my telescope" much easier for our QHY customers with our Adaper-Kits and the corresponding pdf-file.

Note: For the Celestron RASA telescopes, the adaptation via T2 or M48 is included in the scope of delivery. (RASA 36: M48; RASA 11: M48 and T-2; RASA 8: T-2 and C-Mount)

 

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