A high quality Flat-Field 60mm F5.0 ED Quad APO Astrograph for astrophotography with mirrorless, DSLR cameras, or CMOS Astronomy cameras.

With a 300mm focal length, this astrograph is perfect for imaging with sensors like the IMX585, IMX183, IMX269, IMX533 and the IMX571 or any APS-C DSLR.

The quad element design features two ED (Extra Dispersion) elements, and will outperform any dedicated camera lens, even those costing many times the price. A separate reducer or field flattener is not required.

Dual ED optics for perfect Apochromatic "APO" colour correction, even on the brightest stars. Every scope is guaranteed collimated and even features rear tilt adjustment to match your camera.

A properly made CNC machined astro focuser with anti-backlash rack and pinion gives a high level of repeatability. It can be used with just about any autofocus module, including the Altair AAF. (Fine focus knob included for manual focusing).

The optimum camera sensor distance from the rear M48 thread is 59mm with full frame cameras. APS-C sensor cameras have approx. 5mm tolerance. Altair filterwheels and OAG are easily accommodated.

Video review by Simon's Astro about the Altair 60EDQ Dual ED refractor:

Product features and specification: 

• 60mm F5.0 300mm focal length lens system with 4 Internal lens elements, two of which are ED glass, for images completely free of colour-aberration and apochromatic level performance.
• APS-C coverage compatible with Hypercam 26C and 26M / 2600 series cameras.
• Improved dual-speed rack and pinion focuser with new type bearings for accuracy and minimal flex for astro imaging. Fully compatible with Altair AAF Motor Focuser module, Pegasus Focuscube, and others. A direct drive link to the rack and pinion spindle allows for better accuracy. General instructions for typical focuser installation here (opens new window). A 1:10 ratio fine focus knob is included for manual focusing.
• Focuser has M48 Male rear threads. Focuser travel is 20mm. Optimum sensor position is 59mm from the rear M48 thread for full-frame cameras.
• 360° Field rotator allowing easy framing.
• A set of 4x rear collimation screws allow easier tilt-adjustment of the imaging-train, which can be done in real-time assisted by astro imaging software. So you can add cameras, filter wheels and OAGs with confidence.
• Compact for travel - only 260mm length with dew-shield folded (315mm with dew-shield extended).
• Included 250mm length Vixen format dovetail bar and top-handle with dual Vixen/Arca style dovetail profiles, enabling top mounting of a guidescope using the Altair TMS Quick Release Mini Vixen Arca compatible dovetail clamp (Product code: AAVIXCLAMP-BLUE).
• Weight 3.1kg including top mounting rail/handle, tube rings, and vixen-style dovetail bar.
• Altair Astro QC for complete quality assurance.
• 2 Year return to base warranty covering manufacturing defects with reasonable use.
• Please Note: Not for use for white light or Hydrogen Alpha solar imaging, without Altair solar filter or Energy Rejection Filters (ERF). Altair reserves the right to change product specification or price without notice.

Scope of Delivery:

• Opticaö Tube
• Mountin PLate
• Tubering
• Carry Handle