TS Optics

The 4" corrector and reducer is designed for the large 180mm f/7 Triplet APO and allows astrophotography with full frame cameras at the highest level.

• Improves the focal ratio from f/7 to f/5.6 and reduces the focal length of the apo to 1008 mm
• Full illumination and correction up to full frame
• Working distance is 55 mm from the M48 connection thread
• The corrector is screwed to the focuser of the apo

The 107PHQ is a transportable APO refractor for astrophotography with corrected field of view up to full frame sensor and for observation up to the highest magnification range.

• Aperture 107 mm - focal length 740 mm - focal ratio f/7
• 4-element Petzval system with color-correct triplet objective and a corrector lens built into the optical tube
• Stable 3.4" RAP focuser with micro-reduction and 360° rotation - adjustment range 110 mm
• Sufficient working distance for observing with 2" accessories and for photography
• Besides 1.25" and 2" the apo offers M48, M54, M68 and M86 threads for screw adaptions
• 44 mm image circle with full illumination and correction allow the use of large sensors with high resolution
• CNC tube rings with Vixen/EQ5 style dovetail bar and carrying handle
• Finder shoe for standard finder and mini guiding telescopes available
• High quality carrying case for optimal protection of the telescope
• Each Quadruplet Apo is inspected and its optics tested before shipping - you get an optimally adjusted telescope for successful photography and observation from the very beginning.

With the FMA180 Askar has created a triplet APO refractor with unique visual and photographic applications

• With just a few simple steps, the APO telephoto lens can be transformed into a compact astronomical telescope, a guide scope or a powerful spotting scope for landscape observation.
• Aperture 40 mm
• Air-spaced triplet ED lens for almost pure color image
• Photographic focal length 180 mm (with corrector) - focal ratio f/4.5
• 2" filter thread in front of the objective for nebula filters
• Focal length for observation 220 mm
• The photographic field of view is up to full frame size
• Precise helical focuser on the lens for accurate focusing - with locking mechanism
  T2 camera connection with 55 mm working distance (when used as telephoto lens)
• Weight only 395 grams
• Can easily be attached to the telescope instead of the finder
• Fits on any ball head - also ideal for mobile astrophotography with photo trackers like the Sywatcher Adventurer
• Ideally suitable also as mini guide telescope
• The FMA180 can be converted into a compact spotting scope for observation in just a few steps

The 80PHQ is a very transportable APO refractor for astrophotography with corrected field of view up to full frame format and for observing up to the highest magnification range.

• Aperture 80 mm / focal length 600 mm / focal ratio f/7.5
• 4-element Petzval system with color clean triplet objective and one corrector lens built into the tube
• Stable 3" RAP focuser with dual speed and 360° rotation
• Sufficient working distance for observation with 2" accessories
• Suitable photo adapters are included in delivery
• Illuminated image circle with very good correction up to full frame format
• CNC tube rings with Vixen style EQ5 dovetail bars and carrying handle
• Finder shoe for standard finder and mini guiding telescopes available
• High quality carrying case for optimal protection of the telescope
• Each Quadruplet Apo is inspected upon receipt, you will receive an optimally adjusted telescope for successful photography and observation from the very beginning.