Note:

1. If you only own CFW3M-SR whose BFL is 20.5mm rather than 17.5mm, this adapter combination can still be used, just remove the 3mm and 0.5mm adapters.
2. If your MPCC requires a BFL different from 55mm, this adjustment can be made by selecting the appropriate spacer between the MPCC and the OAG.  For example, an MPCC that requires 57.5mm can be used instead by adding a spacer ring or rings that add 2.5mm of BFL. to the diagram above.
3. If you don’t use an OAG, you can use a 10mm spacer adapter in the adapter kits to replace the original position of OAG.
4. Put OAG at the position next to the M48 Output to make both main cam and guiding cam focused.

A2: Connect Canon lens with filter Wheel

Note: You need to remove the filter wheel and the original connection interface of the camera and replace it with a new adapter.

A3: Connect Nikon F Lens to Camera with Filter Wheel

First there’s no doubt that 2-inch filters are large enough to cover the whole sensor area, but they’re not cheap enough for everyone. With a rough estimate, we think 36mm filter can be matched with scopes whose focal ratio are smaller than f/5 (f/4 worth a try, too). However, if your scope has a large focal ratio like f/2.8, we suggest you think carefully before using 36mm filters.

Note: Adapter Kits B1 is provided FOR FREE with each QHY268M model.  B1,B2,B3,are suited for QHY268M; Adapter Kits D1 is provided FOR FREE with each QHY268C model.  D1,D2,D3,are suited for QHY268C.

Note:

1. If your MPCC requires a BFL different from 55mm, this adjustment can be made by selecting the appropriate spacer between the MPCC and the OAG.  For example, an MPCC that requires 57.5mm can be used instead by adding a spacer ring or rings that add 2.5mm of BFL. to the diagram above.
2. If you don’t use an OAG, you can use a 10mm spacer adapter in the adapter kits to replace the original position of OAG.
3. Put OAG at the position next to the M48 Output to make both main cam and guiding cam focused.

B2: Connect Canon EF lens to Camera with filter Wheel

B3: Connect Nikon F Lens to Camera with Filter Wheel

Note: The current Nikon adapter used here is different from the 10mm adapter we used to provide. Now it has a back focal length increment of 12mm.

Note: If you only use the filter wheel, the QHY600 standard version is enough to meet your needs. If you must use the CFWL and OAG at the same time, or use DSLR Lens, please choose QHY600 SBFL version.

Generally speaking, there’s no need for an OSC (one shot colored) camera to match filter wheel. If there’s any special needs, please refer to mono cam combos and choose the corresponding filter wheel. All OSC cams use OAG M if needed.

*About IR-Cut filter：

The sealing glass of QHY OSC cameras whose format are above APS-C is AR glass instead of IR/Cut filter. That’s because when the sensor size is bigger, if IR/Cut is closed to sensor, it’s easy to cause haloing effect on image. We use IR/Cut filter as sealing glass on 4/3 format cameras or below, like 163C, 183C; as for big sensor OSC cams, such as 268C, 367C, we provide a special adapter for fixing 2-inch IR/Cut filter at a farther position from the sensor, or users can fix the filter inside the default T mount.

D1: Connecting MPCC with 55mm BFL and M48 interface

If you don’t use an OAG, please use 10mm adapter in the adapter kits to fill the original position of OAG.

D2: Connecting Canon EF Lens

E1 is designed for QHY533C, 294C, 163C, 183C, 174C. Of course, if you use 163M/294M/183M/174M while a filter wheel or OAG is not needed, you can use E1 as well.