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OPTIONAL EQUIPMENT 

(see www.telescopengineering.com for up to date prices)

Finderscope bracket with base 

$120

BP 8X50 finderscope (Germany) with illuminated eyepiece

$160

TEC 9” narrowed dovetail plate for APO110FL only

$70

Plate clearance adapter 

$15

Eyepiece Turret 

$500

Field Flattener (three-lens design)

$750

OVERVIEW

The APO110 Fluorite is TEC’s smallest model, it was designed with customer input in mind and many 
aspects of it’s design were discussed on tec-scopes yaoo group since April 2009:  
http://tech.groups.yahoo.com/group/tec-scopes 
As a result we have designed a very compact, relatively fast F/5.6 telescope that could be used for both 
visual observations and wide field imaging. 

Scope also has number of features that in given combination are rarely found in one scope:
- Compact, lightweight tube assembly with retractable baffle and shell type ring with handle for GG
action (“grab and go”)
- Case for telescope has “carry-on” dimensions for most airlines (since these dimensions could change, 
please double check weight/dimensional limitation prior to your flight).
- Telescope objective being “oiled triplet” by design transmits more light than any other objective in it’s 
class, thanks to the use of CaF2 as a middle lens and modern BBAR coatings on outer surfaces.
- Precision rotatable focuser with coarse and fine focusing, with 2”eyepiece holder.
- The focuser features a specially designed collet made of metal wich is insensitive to temperature and 
holds loads with high precision when concentricity of focuser tube and axis of the eyepiece or camera
attained automatically by definition.
- All components of the telescope, including: mechanical parts, optics, coatings, etc. are 

MADE IN USA

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Front view - rear view

110 manuals_110 manuals  6/27/2010  8:16 PM  Page 3

Summary of Contents for APO110 FL Eclipse

Page 1: ...TEC APO110 FL TEC APO110 FL ECLIPSE OWNER S MANUAL 2010 110 manuals_110 manuals 6 27 2010 8 16 PM Page 1 ...

Page 2: ... com group tec scopes Address Telescope Engineering Company 15730 West 6th Ave Golden CO 80401 USA TEC APO 110 TECHNICAL SPECIFICATIONS Clear aperture 4 33 110 mm Focal length 616 mm Focal ratio 5 6 Image scale 5 6 arc min Resolution theor 1 0 arc sec Focuser TEC I 3 20 82mm ID Eyepiece holder 2 Collet type Focusing range 3 60 92 mm One turn focus travel Coarse 18 3 mm Fine small knob 1 8 mm Back ...

Page 3: ... Compact lightweight tube assembly with retractable baffle and shell type ring with handle for GG action grab and go Case for telescope has carry on dimensions for most airlines since these dimensions could change please double check weight dimensional limitation prior to your flight Telescope objective being oiled triplet by design transmits more light than any other objective in it s class thank...

Page 4: ... handle see separate description 6 Focuser see separate description 7 Plug It is a small part to keep the focuser end closed when not in use It also has TEC logo CLAMSHELL RING Clamshell contains upper and lower semi round parts handle 5 1 latch 5 3 hinge 5 4 Handle can be removed by unscrewing the flanged screw 5 2 with 5 32 hex key To remove OTA from the clamshell ring lift the latch wing up mak...

Page 5: ...using all the way around that also makes the axis of draw tube strictly concentric to the optical axis of telescope Holding draw tube in such a way makes the focuser more robust focuser has virtually no play under radial load 7lb weight shifts fully extended draw tube for less than 20mk The F5 6 ratio required finer focusing compared to our typical F7 telescopes since permitted defocusing is two t...

Page 6: ...your equipment Coarse focusing knobs 9 and Fine focusing knob 10 have round rubber grips for better tactile feeling during focusing Using rubber is also better for focusing at low temperatures Right focusing knob can be removed by loosening set screw 11 a Robofocus or other brand of electrical motors can be installed instead use 4 40 threaded holes 13 for motor bracket installation Fine focusing k...

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