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TEC APO 140 User Manual

TEC APO 140
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TEC
TEC
APO
APO
140
140
OWNER’S MANUAL
2005
“This telescope is closer to optical perfection more
than any instrument I have ever used before.”
R.Renzi, Italy.
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TEC APO 140 Specifications

General IconGeneral
BrandTEC
ModelAPO 140
CategoryTelescope
LanguageEnglish

Summary

Safety Warnings

Sun Viewing Hazard

Critical safety advice to prevent visual damage and equipment harm from sun viewing.

Disassembly Hazard

Warning against disassembling the telescope to prevent personal injury and equipment malfunction.

Contact and Specifications

Contact Information

Provides phone, fax, email, and web details for user inquiries and assistance.

Technical Specifications

Lists aperture, focal length, focal ratio, resolution, focuser, and dimensions.

Optional Equipment

Details available accessories and their prices.

Telescope Overview

Key Features

Highlights precision apochromatic objective, retractable baffle, and focuser.

Getting to Know Your Telescope

Identifies and describes the main parts of the telescope.

Feather Touch Focuser

Focuser Care and Use

Guide to operating the Feather Touch 3545 focuser for optimal performance.

Focuser Design Features

Details the 9:1 fine focus reduction and dual coarse focus knobs.

Focuser Operation

Explains how to rotate, lock, and use the focuser, including removing the end cap.

Eyepiece Locking

Describes the collet locking mechanism for securing eyepieces.

Focuser Safety

Critical warnings about securing eyepieces and not pointing at the sun.

Focuser Adjustments and Warranty

Draw Tube Adjustment

Explains how to adjust focuser drag using tension and thumb screws.

End Cap Removal

Details how to remove the end cap for accessories like field flatteners.

Finder Bracket Screw Warning

Warning about using correct screw length for finder bracket attachment.

Warranty Information

Outlines the 3-year warranty for material and workmanship defects.

Telescope Optics

Apochromatic Objective Design

Describes the ED glass triplet objective and its color correction.

Optical Performance Metrics

Details Strehl ratio, wavefront, and RMS values for the objective.

Coatings and Construction

Explains the 7-layer antireflective coating and sealed construction.

Objective Disassembly Warning

Stern warning against disassembling the objective due to potential damage.

Telescope Accessories

Tube Rings

Describes CNC machined aluminum tube rings with adjustable latches.

Dovetail Plate

Details the CNC machined TEC Dovetail Plate compatible with various saddle systems.

Finderscope Bracket

Describes the bracket for 50mm finders or Red Dot sights with alignment screws.

Telescope Cases

Presents two types of protective cases: Scopeguard and Aluminum transportation.

Eyepiece Turret

Describes the Eyepiece Turret with a Mahogany case for quick eyepiece changes.

Focusing Diagram

Focusing Tube Positions

Illustrates field dia. at different focuser positions and with accessories.

Maintenance and Updates

Cleaning and Handling

Guidance on cleaning the telescope tube and careful handling during transportation.

Model Revision History

Table detailing updates across different production runs from 2002 to 2005.