QHYOAG S/M/L Pro
QHYOAG S/M/L Pro
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QHYOAG S/M/L Pro
The QHYOAG M/L Pro is an off-axis guider designed to enhance the guiding performance of astrophotography setups. Let’s delve into the details:
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Model Variants:
- QHYOAG-M Pro: This variant is compatible with telescopes using an M54/0.75 thread (an adapter may be needed). It works seamlessly with the QHYCFW3-M/L filter wheel or can be connected to the QHYCFW3M/L using an included adapter. The thickness or back focal length consumed by the OAG is 12mm (excluding the adapter). The prism size is 14mm x 10mm1.
- QHYOAG-L Pro: Designed for larger sensors, this variant supports cameras like the QHY461PH and QHY600. It provides M62 and M54 thread outputs directly. The OAG-L Pro is compatible with the QHYCFW3XL filter wheel and can also be paired with other QHY filter wheels using standard adapters. Solutions are available to achieve a back focal length of 55mm1.
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Purpose and Benefits:
- Shared Field of View: Unlike external guiding setups, where a separate guide scope is used, the OAG allows the guiding camera and imaging camera to share the same field of view. This reduces differential flexure and utilizes the telescope’s larger aperture.
- Larger Sensor Guide Cameras: To improve the chances of finding suitable guide stars, the OAG-M/L Pro accommodates guide cameras with larger sensors. For instance, guide cameras like the QHY5III174M or QHY5III585C have a field of view 2-4 times larger than typical smaller guiders. This larger FOV ensures more stars are available for guiding.
- Wider Prism: The OAGM/L Pro features a larger prism (10mm x 14mm) compared to the standard QHYOAG series (8mm x 8mm). This wider prism allows better illumination of larger sensor guide cameras, minimizing vignetting. When connected to the OAG Pro, there’s minimal darkening at the edges, ensuring effective guiding even at night1.
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Connection and Compatibility:
- The QHYOAG Series attaches directly to the camera or filter wheel using six screws, ensuring a solid and reliable mechanical connection.
- Various standard and optional QHY accessories can be combined for versatile structural setups.
- Adapter kits (such as B1 and G1) are included in specific camera packages (e.g., QHY268M, QHY600M-PH SBFL) to facilitate connections.
- The QHYOAGL Pro directly mates with the QHYCFW3XL (62mm) filter wheel. Adapters are also provided for compatibility with the QHYCFW3L and QHYCFW3M1.
Model | QHYOAG-M Pro | QHYOAG-L Pro |
Released Date | 11/2023 | 08/2023 |
Telescope Interface | M54/0.75(adapter needed) | M62/0.75 or M54/0.75 (adapter needed) |
Filter Wheel Compatible | QHYCFW3-M/L | QHYCFW3XL; Or connect QHYCFW3M/L with an adapter included in the package |
Thickness/BFL Consumes | 12mm (excluding adapter) | |
Size of Prism | 14*10mm | |
Retail Price* | USD 229 | USD 280 |
The QHYOAG Series directly attaches to the camera or filter wheel with six screws, ensuring a solid, parallel and reliable mechanical connection. At the same time, various standard and optional QHY accessories can be used to realize a variety of structural combinations.
Below are some typical connection examples. Now Adapter B1 Kit is included in each package of QHY268M and QHY600M-PH SBFL. Adapter G1 Kit is included in each package of QHY268C and QHY600C-PH SBFL.
The QHYOAGL Pro and the QHYCFW3XL (62mm) can be directly mated.
QHY also provides compatible adapters for QHYCFW3L and QHYCFW3M as standard accessories, making the OAG-L Pro compatible with more filter wheels. At the same time, solutions to achieve a back focal length of 55mm are also provided, see below:
The QHYOAGL Pro is designed to support cameras with larger sensors like the QHY461PH, QHY600, and their corresponding large optical systems. Therefore, it only provides M62 and M54 thread outputs.
Model | QHYOAGM Pro | QHYOAGL Pro |
Telescope Interface | M54/0.75(combined with certain adapters) | M62/0.75 or M54/0.75 (combined with certain adapters) |
Focal Length | 12mm (excluding adapter) | |
Suitable for CCD/CMOS Size | Full Frame and APS-C CMOS | Full Frame and Medium Frame CMOS |
Compatible Filter Wheel
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QHYCFW3L and QHYCFW3M (combined with certain adapters) | QHYCFW3XL, QHYCFW3L and QHYCFW3M (combined with certain adapters) |
Compatible Guide Camera | Large-sensor guiding camera like QHY5III174M is recommended. Also be compatible with smaller cameras | |
Guide Camera Interface | 1.25 inch | |
Weight | About 155g | About 165g |
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