Tele Vue 0.8x Reducer/Flattener for 102 Scopes (RFL-4087) User Manual

Tele Vue Hardware

0.8x Reducer/Flattener for 102 Scopes (RFL-4087)

This 0.8x reducer, RFL-4087 can be used for all Tele Vue 102mm f/8.6 telescopes: TV102 and
TV102is.
It is optimized for 55mm back focal length typical of SLR camera bodies that accept T-Rings. You
must attach Tele Vue adapters TRG-1072 for standard T-ring or CWT-2070 for Canon Wide T-
adapters, to the back of the reducer. For all telescopes with 2" focusers, you must attach Tele Vue

adapter RAD-1074. For the Tele Vue TV102is, the front female threads accept threaded extension
tubes TLA-0250, TLB-0375, TLC-0500, TLD-1000, as necessary to focus with the 2.4" focuser of this
scope.
The RFL-4087 together with RAD-1074 and camera adapter comprises a replacement for the previ-
ous REF-3007.
This combination can also be used for other telescopes in the 800-1000mm focal length range for
increasing field size and flattening the field for up to 35mm format SLR/DSLR bodies.

without RFL-4087

(Recommended

up to 20mm

field diameter)

with

RFL-4087

TV102 Focal Length

880mm

704mm

f/# (ratio)

8.6

6.9

Field of View (deg) 1.3 (20mm

field dia.)

3.4 (42mm

field dia.)

TRG-1072 or CWT-2070

RFL-4087

RAD-1074

For information call 9 a.m. — 5 p.m. ET Monday through Friday: 845 469 4551 or visit www.TeleVue.com.

Rev: 21 December 2006 at 1555 hours

RFL-4087

0.8x Reducer/Flattener for 102 Scopes (RFL-4087)

This 0.8x reducer, RFL-4087 can be used for all Tele Vue 102mm f/8.6 telescopes: TV102 and

TV102is.
It is optimized for 55mm back focal length typical of SLR camera bodies that accept T-Rings. You

must attach Tele Vue adapters TRG-1072 for standard T-ring or CWT-2070 for Canon Wide T-
adapters, to the back of the reducer. For all telescopes with 2" focusers, you must attach Tele Vue
adapter RAD-1074. For the Tele Vue TV102is, the front female threads accept threaded extension

tubes TLA-0250, TLB-0375, TLC-0500, TLD-1000, as necessary to focus with the 2.4" focuser of this
scope.
The RFL-4087 together with RAD-1074 and camera adapter comprises a replacement for the previ-
ous REF-3007.
This combination can also be used for other telescopes in the 800-1000mm focal length range for
increasing field size and flattening the field for up to 35mm format SLR/DSLR bodies.

without RFL-4087

(Recommended

up to 20mm

field diameter)

with

RFL-4087

TV102 Focal Length

880mm

704mm

f/# (ratio)

8.6

6.9

Field of View (deg) 1.3 (20mm

field dia.)

3.4 (42mm

field dia.)

TRG-1072 or CWT-2070

RFL-4087

RAD-1074

For information call 9 a.m. — 5 p.m. ET Monday through Friday: 845 469 4551 or visit www.TeleVue.com.

Rev: 21 December 2006 at 1555 hours

RFL-4087