ToupTek OAG-L Off-Axis Guider This Off-Axis Guider design is highly effective and efficient, it also an essential astroimaging accessory for long focal length telescopes that require the most accurate guiding possible. The OAGs come in 3 different adapter thread sizes based on your needs M48 female, M54 female and M68 female. Attention: This OAG is compatible with ToupTek standard guide or planetary cameras and many other brands of cameras. ToupTek GPM and G3M extended model cameras require the OAG-X model. Features Lightweight and elegant, with a moderate optical distance thickness (17.5mm)2. Prism area 10*10mm3. Effective aperture 10*7mm4. Capable of simultaneously connecting the main camera and guide camera without the need for a guiding scope.5. Compatible with all ToupTek ATR cameras or other mainstream brands cameras and accessories. Note: The Extender is only required for the OAG-X and ToupTek GPM/G3M cameras. It's not required for any other cameras and OAGs such as the OAG-L series.
