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35mm

1/4 inch x 2

3/8 inch

40mm

54mm

Eyepiece Setscrew

Threaded holes for 1/4” 

camera-tripod screw

A threaded hole for 3/8” 

camera-tripod screw

Dew Shield

It avoids generating ghost 

from surrounding lights.

Focus Knob

Drawing in or out the drawtube 

to focus.  An optional Dual 

Speed Focuser is available.

Dovetail Slide Bar M

I t   f i t s   d i r e c t l y   t o   t h e  

Dovetail Mounting Block.

Drawtube Lock Screw

It is used to hold the drawtube.

Extension Tube VC

It is attached to the 60mm drawtube 

in diameter.

Removing the Dovetail Slide Bar M with a 5mm 

Allen wrench will reveal the threaded holes for a 

c a m e r a   t r i p o d.    T h e   t h r e a d e d  h o l e s   a r e  

applicable to 1/4” and 3/8” camera-tripod screws.

Eyepiece Adapter 31.7mm

I n s e r t   a n   e y e p i e c e   w i t h  

31.7mm barrel sold separately. 

M60 to 43AD Ring

It is attached to the Extension 

Tube VC to convert the 60mm 

drawtube to 43mm in diameter.

M4X12mm screws for Finder Bracket Shoe

These screws are used to attach a finder bracket shoe sold 

separately.  Be sure to use the M4x12mm screws instead of 

the ones originally supplied to the finder bracket shoe.

Objective Lens (Inside)

4

NAME OF EACH PART

Focuser

FL55SS

Finder Bracket Shoe (Optional)

The supplied 

M4X12mm screws

Attaching the FL55SS to 

a commercially available 

camera tripod.

Mounting block on the bottom

Summary of Contents for FL55SS

Page 1: ...Instruction Manual for...

Page 2: ...g injuries could result from a collision with objects or from stumbling or falling Keep small caps plastic bags or plastic packing materials away from children These may cause a danger of swallowing o...

Page 3: ...len wrench of 5mm on a side Dovetail Slide Bar M Already attached M4X12mm screws for Finder Bracket Shoe Instruction Manual This booklet 1 1 1 1 2 1 Instruction Manual This booklet FL55SS Optical Tube...

Page 4: ...ill reveal the threaded holes for a c a m er a t r i p o d T h e t hr e a d e d h o l e s a r e applicable to 1 4 and 3 8 camera tripod screws Eyepiece Adapter 31 7mm I n s e r t a n e y e p i e c e w...

Page 5: ...e dovetail lock screw and then tighten the small chrome safety screw Attaching the Optical Tube to a Mount Be sure to use the two M4x12mm screws included in the package of the FL55SS to attach the fin...

Page 6: ...FL55SS with an eyepiece of low magnification Turn the focus knob forward or backward as shown in the figure until images in the eyepiece s field of view come to focus clearly Begin with an eyepiece w...

Page 7: ...or Eyepiece Projection Adapter Eyepiece 31 7mm Eyepiece 31 7mm FL55SS OTA EA42mm to 31 7mm SX Flattener HD for FL55SS 2 Filter 52mm 1 1 A filter may cause ghost if it is attached 2 It is included eith...

Page 8: ...ng Power Limiting Magnitude Focuser Design Threads Push fit Optical Tube Length Outer Diameter Weight Dovetail Slide Bar M Extension Tube VC M4X12mm screws for attaching an optional finder bracket sho...

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