Askar FRA500 – 90 APO (Quintuplet)

Askar is the new line of specialised telescopes for astrophotography with particular emphasis on optical and also mechanical quality.

The Anotation ‚FRA‘ represents refractor telescopes with an integrated corrector element for a flat and corrected field of view. The FRA series is mainly used for astrophotography.
The ASKAR FRA500 is a Petzval 5-element Apochromat with 500mm focal length, f/5.6 focal ratio and 90mm aperture. 2 ED glasses are installed in the front lens for improved colour correction. This APO is also suitable for cameras up to full frame sized sensors.

The dew cap also provides good protection against stray light and is retractable. The large focuser also holds heavy cameras and allows for precise focusing thanks to the microfocus adjustment wheel. The focuser offers a range of connections for all common astro thread sizes. Also included is an adapter to M48 x 0.75, which is ideal for all cameras with a 55mm working distance. This adapter also has a space to screw in 2″ filters.

Spec:

• Aperture: 90mm
• Focal length: 500mm
• Aperture ratio: f/5.6
• Telescopic type: 5-element quintuplet APO with 3-element ED lens
• Transport length: 410mm
• Weight: 4.1 kg
• Connection camera side: M68x1, M54x0.75, M52x0.75 indoor and M48x0.75
• Filter thread: A 2″ filter thread (M48x0.75) is integrated into the camera adapter

Features:

• 5-element quintuplet design with corrector in tube Two ED glasses in a triplet lens for very good correction of the color.
• 55mm image circle with full illumination and correction.
• Stable 3.5″ RAP focuser with micro reduction gear and 360° rotation.
• Adapters to M68x1, M54x0.75, M52x0.75 and M48x0.75 are all included.
• From the M48 thread you have a comfortable working distance for all common astro cameras and DSLR Cameras.
• Flexible Losmandy Level dovetail bar with photo tripod connection and carrying handle with flexible slotted hole.
• Finder shoe for standard viewfinder holder.

Whats included:

1. CNC Tube Clamps
2. Losmandy Level Dovetail Bar
3. Carry Handle
4. Photo Adapter
5. Finder Shoe (Assembled)