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Tla-0250 – Tele Vue 102iis User Manual

Page 6

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TLA-0250

TLA-0250

TLA-0250

TLA-0250

TLA-0250 – 0.250" (6.4mm) Spacer
TLB-0375

TLB-0375

TLB-0375

TLB-0375

TLB-0375 – 0.375" (9.5mm) Spacer
TLC-0500

TLC-0500

TLC-0500

TLC-0500

TLC-0500 – 0.500" (12.7mm) Spacer
TLD-1000

TLD-1000

TLD-1000

TLD-1000

TLD-1000 – 1.000" (25.4mm) Spacer

TLF-0040

TLF-0040

TLF-0040

TLF-0040

TLF-0040

0.040" (1mm) Spacer

TLG-0080

TLG-0080

TLG-0080

TLG-0080

TLG-0080

0.080" (2mm) Spacer

TLS-2245

TLS-2245

TLS-2245

TLS-2245

TLS-2245 – Set of all six spacer rings.

Threaded coupling provides the necessary distance for proper spacing of field lenses to chip.

Required spacers will vary depending on camera specifications. 0.040” and 0.080” rings fit between
the threaded spacers.

Black anodized aluminum with anti-reflection threads for maximum contrast.

4.1 Adjustable Position End Ring

The tilt of the End Ring to the optical axis can be changed to compensate for any tilt errors you may see in
your photography. The telescope is aligned with the End Ring locked firmly against the end of the draw tube.
In this way you are always assured of a reference point to return to if necessary.

To determine which way to tilt the End Ring, it is necessary to focus on the part of the image that comes

to focus first when racking out the focuser from its “in” position. That will permit adjusting, or “jacking,” the
End Ring “out” to match that focus point in the field.

You will need to remove your camera equipment, including the Imaging System Adapter to adjust the

tilt of the End Ring . Slightly loosen the three Jamb Screws located on the face of the End Ring with the
appropriate Allen key. Then, “jack” the End Ring to the desired position using the appropriate Allen key Jack
Screws. Tighten the Jamb Screws against the End Ring and reinstall your camera. Some trial and error
imaging will be necessary, so it is best to carry out any necessary adjustment during an imaging session.

4.2 Prime Focus

Prime focus photography involves attaching a camera, without its lens, to the telescope. In this method the
telescope becomes the camera’s lens. In the case of the 102iis, its native 880mm focal length, f/8.6

Accessories Key
A. Imaging System Adapter (Supplied Standard)
E. TLE-1076

TLE-1076

TLE-1076

TLE-1076

TLE-1076 - 3.8” long threaded extension for photography

F. RFL-4087

RFL-4087

RFL-4087

RFL-4087

RFL-4087 - 0.8x Reducer/Flattener

G. TLA-0250

TLA-0250

TLA-0250

TLA-0250

TLA-0250 0.25" long threaded extension

H. STL-1071

STL-1071

STL-1071

STL-1071

STL-1071 SBIG STL series adapter

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I. TRG-1072

TRG-1072

TRG-1072

TRG-1072

TRG-1072 Standard T-Ring adapter

J. CWT-2070

CWT-2070

CWT-2070

CWT-2070

CWT-2070 Canon Wide T Adapter

K. TLB-0375

TLB-0375

TLB-0375

TLB-0375

TLB-0375 0.375" long threaded extension

L. TLC-0500

TLC-0500

TLC-0500

TLC-0500

TLC-0500 0.500" long threaded extension

M. TLD-1000

TLD-1000

TLD-1000

TLD-1000

TLD-1000 1.000" long threaded extension