Refracting telescopes

TS PHOTOLINE 106 mm f/6.6 triplet apochromat with color-clean image with high-quality triplet lens from Japanese production

• Aperture 106 mm / focal length 700 mm / focal ratio f/6.6
• Multi-coated 3-element lens with FCD100 APO element (similar to FPL53) from Hoya (Japan) for a color-pure image
• The lens including cell is made in Japan
• Lens is adjustable with pull and push screws
• Internal baffles for higher contrast and fewer reflections
• 3.5" dual-speed RAP focuser with improved bearing of the draw tube - supports cameras up to 10 kg without shifting
• Connection for screw adaptions via M63x1 female thread - 2" and 1.25" receptacle
• Powerful telescope also for observing with clear, high contrast image
• Retractable dew shield for transport
• CNC tube rings, Vixen/EQ5 style dovetail bar, carrying handle and finder shoe are included in the scope of delivery
• Each Apo is visually and mechanically inspected and tested before shipment

William offers with the REDCAT71 Astrograph a very well corrected telescope for astrophotography up to full frame format.

• Aperture 71 mm / Focal length 350 mm / Focal ratio f/4.9
• Petzval design with chromatic aberration free FPL53 objective (4 elements in 3 groups)
• Very well corrected and illuminated image field up to full frame format - the corrector is built in - no more adapter battle necessary
• Camera connection via M48 male thread (suitable adapters are available) - working distance 55 mm
• 360° rotation of the camera for the right display window
• Focusing via precise helical focuser like telephoto lenses
• Tilting option for individual adjustment of the camera sensor to the telescope
• Flexible dovetail bar at the base (long version), suitable for Vixen style and Arca-Swiss saddle plates, in addition with 1/4" female photo tripod thread
• Nylon carrying bag and Bahtinov mask for astrophotography are included in delivery

The ASKAR FRA 500/5.6 APO quintuplet apochromat from Sharpstar is optimized for astrophotography with high resolution cameras

• Aperture 90 mm
• Focal length 500 mm / focal ratio f/5.6
• 5-element quintuplet design with corrector in tube
• Two ED glasses in the triplet objective for very good correction of the chromatic aberration
• 55 mm image circle with full illumination and correction
• 158 mm maximum working distance from drawtube with all adapters for photography and observation
• Stable 3.5" dual-speed RAP focuser with 360° rotation
• Adapters to M68x1, M54x0,75, M52x0,75 and M48x0,75 are included in delivery
• Starting with the M48 thread, you have comfortable working distance for all common astro cameras, DSLR and system cameras
• Flexible Losmandy style dovetail bar with photo tripod connection and carrying handle with flexible oblong hole
• Finder shoe for standard finder holders
• Including inspection check list of the manufacturer