The newly released update to the classic TEC APO200FL offers a “super” planetary refractor telescope with 200 mm free aperture and 2200 mm focal length. This updated f/11 version introduces key design changes to optimize color correction offering an apochromatic doublet lens with a fluorite (CaF2) inner element that comes up to temperature faster than the previous version APO200FL f/8.

TEC APO200FLThe f/11 focal length ratio, in combination with the fluorite element, results in perfect color correction. The excellent contrast of the air-spaced doublet design and the longer focal ratio help users delve deep into the skies. As the TEC team notes, “The TEC APO200FL will bring back the beauty of long refractors to your backyards, public clubs, school observatories, etc.”

The TEC APO 200 FL lens has an aluminum frame, which offers excellent temperature compensation behavior and is at the same time light and stable. The optics are built into a lightweight aluminum tube, which has an anti-reflective coating on the inside and sharply defined apertures. Users don’t have to worry about collimation as, after the telescope leaves the TEC factory, adjustment is not necessary. The crisp all white assembly projects the elegant, handcrafted quality that TEC is known for.

Each TEC APO 200 FL is equipped with a Starlight Instruments FTF#3545 Feather Touch focuser. It is Starlight Instruments’ largest rotary focuser with a 9:1 planetary gear for coarse and fine focusing. The 2″ ring clamp is insensitive to temperature fluctuations and holds even heavy loads with high precision and concentricity.

TEC telescopes go through rigorous testing to ensure top quality performance. Newtonian Rings are used throughout the glass production process and the company uses an interferometer to correct any remaining imperfections. Every telescope is then tested vigorously to reach the most optimum Strehl ratio possible.

The TEC APO 200 FL can be mounted with a 12″ plate and handle that attach to brackets which connect directly to the telescope flanges. Larger Losmandy Plates could be used to give a longer balancing range for the telescope. TEC recommends pairing with a high-capacity load mount and a stationary observation station. Recommended mounts include the 10Micron AZ3000 HPS  and GM3000 HPS mounts as well as the Astro-Physics 1600GTO Mounts.

Highlights of the TEC APO 200 FL include:

– Clear Aperture: 200mm (7.8in)

– Focal Length: 2200mm (86.7in)

– Focal Ratio: f/11

– Back Focus DistanceL 260mm (10.2in)

– Rear wheel (handle) OD: 270mm (10.7in)

– Tube Diameter: 210mm (8.3in)

– Tube Length: 2325mm (91.5in)

– Glass Weight: 4kg (8.8 lbs.)

– OTA Weight: 21kg (46 lbs.)

You can learn more about the TEC APO 200 FL here.

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