TS Optics Photoline AP 80/480 ED Triplet OTA

Description

Eliminating chromatic optical fringing across wide-field deep-sky targets, the TS Optics Photoline AP 80/480 ED Triplet OTA is a high-precision portable deep-sky astrophotography refractor optical tube assembly. Sized with an 80mm (3.15 in) clear aperture, a 480mm focal length, and a fast f/6.0 focal ratio, this telescope delivers a 1.45 arcseconds Dawes resolving limit and reaches magnitude 12.2, gathering photons for wide-field true color-free astrography and high-resolution lunar observation.

The optical system features an air-spaced true APO triplet objective housed in a CNC temperature-compensated lens cell, treated with ultra-wideband anti-reflection multi-coatings with an unobstructed 0% central profile. Built inside an aluminum chassis measuring 385mm retracted and 440mm extended with a 102mm outer dew shield diameter, the tube assembly supplies 150mm of back focus from the rear mechanical thread (55mm standard from dedicated M48 flattener threads). Equipped with a 2.5-inch heavy-duty dual-speed rack-and-pinion focuser, an M63x1 rear thread, and a 360-degree rotator, this 3.10 kg (6.83 lbs) refractor illuminates a 44mm full-frame image circle when paired with dedicated correctors.

Key Features of TS Optics Photoline AP 80/480 ED Triplet OTA

Designed for mobile astrophotographers and planetary visual observers, this 80mm triplet combines an Ohara FPL-53 element with German Schott glass and a heavy-duty 2.5-inch rack-and-pinion focuser. CNC-machined split tube rings, a top utility carrying handle, and a standard Vixen dovetail bar ensure mechanical stability during field sessions.

• 80mm (3.15 in) clear aperture with 480mm focal length and fast f/6.0 optical speed
• Air-spaced true APO triplet objective with Ohara FPL-53 and German Schott optical glass
• Ultra-wideband anti-reflection multi-coatings with an unobstructed 0% central profile
• 2.5-inch heavy-duty dual-speed rack-and-pinion focuser 1:10 with M63x1 thread and rotator
• Generous 150mm back focus distance measured from rear mechanical thread (55mm from M48)
• Corrected 44mm full-frame image circle when paired with dedicated flattener or reducer
• CNC-machined tube rings with 44mm Vixen-style dovetail bar and top utility handle
• Retractable dew shield, 2-inch to 1.25-inch adapter, and top carrying handle included

Temperature-Compensated FPL-53 & Schott Triplet Optics

The air-spaced triplet lens cell pairs an Ohara FPL-53 Super ED center element with precision German Schott glass to suppress secondary spectrum chromatic aberration across broad spectral bandwidths. The CNC temperature-compensated cell preserves optical alignment during rapid nocturnal temperature drops, supporting practical visual magnifications from 11.4x up to 160x.

Heavy-Duty 2.5-Inch Drawtube & 360-Degree Camera Rotation

Supporting cooled digital cameras, filter wheels, and visual diagonals without drawtube flexure is delivered through a 2.5-inch rack-and-pinion focuser with a 1:10 micro-reduction drive. An integrated 360-degree manual field rotator and an M63x1 rear thread provide direct mechanical coupling for camera trains, while CNC rings keep the 3.10 kg tube balanced on mount saddles.

• 2.5-inch dual-speed rack-and-pinion focuser with 1:10 micro-tuning control to eliminate drawtube sag
• Integrated 360-degree camera field rotator with direct M63x1 threaded mechanical coupling
• CNC-machined aluminum tube rings with top utility handle for balanced mount attachment

TS Photoline Triplet APO Series Warranty

The TS Optics Photoline AP 80/480 ED Triplet OTA is backed by a 2-year limited warranty against material and manufacturing defects. The complete factory package contains the 80/480 Triplet OTA, retractable dew shield, CNC-machined tube rings, Vixen dovetail bar, carrying handle, and a 2-inch to 1.25-inch adapter.