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QHY OAG-M Medium Off Axis Guider

In stock
can be shipped within 1-2 days

£219.00
Price includes VAT, plus delivery


The QHY Off Axis Guider (OAG) series are designed to mount directly to either QHY cameras or filter wheels. This is done using their 6 bolt system to ensure perfect parallelism.

Using an OAG ensures guiding is the most accurate by using the same optics as the imaging camera. In doing so issues with flexure of the guide system are avoided. A pick off prism mounted close to the main imaging sensor provides the guide camera with its image.

The OAG is positioned so that the distance from the prism to the guide camera sensor, is the same as from the prism to the main sensor. The OAG is thus normally placed on the front of the filter wheel or camera.

Supplied with the OAG is an adapter set allowing for various mounting options to different threads. Each OAG has a precision helical focuser designed to accomodate a 1.25" format guide camera. Once focus is acheived this can be locked.

The QHY OAG-M Model shown here is designed for use with sensors up to 36mm x 24mm / 50mm Round Filters. It is a perfect partner for cameras like the QHY268C or QHY600M

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