QHY Off-Axis Guider - Medium # OAG-M

Our #: PAPI-QH-OAG-M
Mfg #: OAG-M
Our Price: $199.00
Free shipping for this item in the US
More Info

Contiguous US Customers:
All items we sell ship for free within the Contiguous US. Shipping will be via the cheapest shipping method which will vary depending on the items in your order. During checkout, you may also be shown other optional faster shipping choices.

US Customers in Hawaii and Alaska:
Free shipping applies to almost all products. A few large telescopes and mounts are excluded from this free shipping offer. For these items, please contact us to obtain a shipping quote before you check out using the online shopping cart.

International Customers:
Free shipping does not apply to international orders. During check-out, you will be presented with several shipping choices and costs. However, the export of some items may be restricted outside the US due to size or manufacturer restrictions.

In Stock (10+ Available)
Stock listed above is accurate & shown in real time
Ships by Next Business Day

Quick Overview

  • Medium-sized QHYCCD off-axis guider for QHY astronomy cameras with APS-C, APS-H, and 36x34 sensors
  • Multi-coated prism with adjustable position for optimum optical alignment
  • Ideal for guiding with telescopes with longer focal lengths that suffer from differential flexure of separate guide scopes
  • Includes helical focuser with 6mm of travel for precise focusing of guide camera

Product Details

1. Precision Connection, No Deflection

The main purpose of the off-axis guider (OAG) is to use the same optical path as the main camera when guiding during astrophotography. Using an OAG avoids the problem of differential deflection that can occur when using a separate guide scope. With an OAG, part of the image is picked-off from the edge of the imaging circle which does not block the main CCD. Off-axis guiding provides more accurate guiding and sharper final images.

All QHY off-axis guiders have the same body that includes an 8mmx8mm multi-coated prism to pick off the beam for the guide camera. The position of the prism can be adjusted as needed and locked down. The main camera connects to the OAG with six 3mm screws that ensure connection accuracy and parallelism, providing a reliable and secure mechanical connection.

2. QHY Off-Axis Guider for Medium-Sized Cameras and Filter Wheels

QHY off-axis guiders come in three sizes: large, medium and small. These three sizes accommodate the dimensions of the telescope-camera interface and the light aperture suitable for different sizes of cameras and adapter accessories.

With a diameter of 62mm, this medium-sized version of the QHY OAG works with M42x0.75 and M54x0.75 adapters. It supports cameras with APS-C, APS-H, and 36x34 sensors such as the QHY16200A, QHY268M/C, QHY600M/C, QHY294M/C Pro QHY 163M, QHY128C, QHY247C, QHY 367C, QHY168C, and QHY410C. It also works with the QHYCFW3M-series medium and large filter wheels.

The QHYOAG-M weighs 145g.

3. Precise Easy Focusing

Each QHY OAG includes a locking helical 1.25” focuser with a 6mm range to help focus an image on your guide camera. When using QHY5II and QHY5III autoguiding cameras, the position of these cameras can be further adjusted in the OAG itself to accommodate a wide range of back focus.

4. Multiple Adapters and Flexible Combinations

In addition to connecting a QHY camera, you can also interface with various standard or optional accessories provided by QHYCCD to achieve complex and adaptable connections, including the use of the OAG as a stand-alone unit, connection to QHY filter wheels, and other applications.

Other Information

  • Country of Manufacture: China