TS-PHOTON 203/800mm Advanced Newtonian with Carbon Tube - OTA

Astrophotography is easy for you with this compact Newtonian from the TS-PHOTON series. Due to the aperture ratio of f/4, this astrograph provides pure speed and therefore short exposure times. With a suitable coma corrector this PHOTON Newtonian becomes a very good astrograph.

Immerse yourself in the world of deep-sky observing with the PHOTON 8" f/4. The large aperture and the enhanced reflectivity of 94% offer unforgettable observations beyond the solar system. Watch exciting details, like spiral arms of galaxies or fine structures in planetary nebulae.

The Newtonian is still well supported by portable mounts like the GoTo mount Celestron Advanced VX or the Skywatcher EQ5 mount. Purely visual observers can also use an altazimuth mount.

The advantages of the carbon composite tube

The TS-PHOTON Newtonian comes with a high-quality carbon composite tube. Beside the weight advantage of approximately 1.5 kg, the main advantage is the better stability of the focus when the temperature changes. That is important for astrophotography. When the temperature falls, metal contracts and the focus moves. Readjusting the sharpness becomes necessary. This combination of tube and mirror makes readjusting the sharpness usually obsolete even for long-term exposures. The images become sharper.

Berger Anti Reflex Paint for best possible internal blackening

For this PHOTON Newtonian, we use Berger Antireflexfarbe (anti-reflex paint). It darkens the inside of the tube as good as velours foil. The big advantage, besides a lower weight, is that the paint almost gathers no dust. The optics stay clean. With velours foil, dust gathers at the primary mirror very quickly.

The advantages of the  TS-PHOTON at a glance

• Fast parabolic optics with outstanding contrast and very good sharpness for planetary observations.
• High-quality 2" Crayford focuser with 1:10 dual speed for 2" and 1.25" accessories.
• Focus position perfect for DSLR and other cameras.
• All popular 1.25" and 2" eyepieces can be used without problems.
• Brighter image through enhanced 94% reflectivity of primary and secondary mirror.
• Motor focus can be retrofitted at any time.
• A 0.5 mm thin stainless steel spider provides stability. Astrophotographers will envy you for the delicate and sharp spikes around bright stars.
• The active ventilation for the primary mirror ensures a clearly faster cooling down.
• Adjustable primary mirror cell and secondary cell completely made of metal

Astrophotography

Only a good coma corrector turns this Newtonian into a true astrograph. A suitable coma corrector will offer you highest sharpness in the entire field.

The working distance from the M48 thread is 55 mm. With a T-ring, you are automatically at the right distance for astrophotography with DSLR cameras. For adaptions do not hesitate to ask, we are happy to help you.

Delivery contents

• TS Photon 8" f/4 Newtonian with carbon composite tube
• Tube rings with GP EQ5 style dovetail bar
• 2" extension tube 35 mm for visual observing
• Dust cover for the front opening
• Primary mirror fan with battery holder
• 8x50 finder with quick release