Vixen FL55SS Manuale utente

Instruction Manual for

PREFACE

Thank you very much for your purchase of a Vixen astronomical telescope.

This manual applies to FL55SS refracting telescope. You may occasionally find descriptions in the text not relevant to your model. Read

instructions for your mount along with this manual if you purchase the telescope as a complete package.

Never look directly at the sun with the telescope or its finder scope or eyepiece. Permanent and irreversible eye

damage may result.

Thank you very much for your purchase of a Vixen astronomical telescope.

WARNING

Do not leave the optical tube uncapped in the daytime. Sunlight passing through the telescope or finder scope may

cause a fire.

Do not use the product while moving or walking, 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 or suffocation.

CAUTION

HANDLING AND STORAGE

Do not leave the product inside a car in bright sunshine, or in other hot places. Keep away strong heat source away from the product.

When cleaning, do not use solvents such as paint thinner or similar products.

Do not expose the product to rain, water, dirt or sand.

Avoid touching any lens surfaces directly with your hands. In case a lens becomes dirty with fingerprints or general smears, gently

wipe it using a commercially available lens cleaner and lens cleaning paper or cloth, or consult your local Vixen dealer.

Blow off dust on lenses using a commercially available blower brush.

For storage, keep the product in a dry place and do not expose to direct sunlight.

CONTENTS

The FL55SS shipping box contains the items listed below. Check if all the items are included.

FL55SS Optical Tube

Extension Tube VC

Allen wrench of 5mm on a side

Dovetail Slide Bar M (Already attached)

M4X12mm screws for Finder Bracket Shoe

Instruction Manual (This booklet)

①

②

③

④

⑤

⑥

①

②

③

⑤

④

⑥Instruction Manual (This booklet)

FL55SS Optical TubeExtension Tube VC

Allen wrench of 5mm on a side

M4X12mm screws for Finder Bracket Shoe

Extension Tube VC

Dovetail Slide Bar M

(Already attached)

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

It fits directly to the

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

camera tripod. The threaded holes are

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

Eyepiece Adapter 31.7mm

Insert an eyepiece with

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)

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

D=55mm f=300mm

VixenCo.,Ltd. MADEIN JAPAN

SETTING UP THE TELESCOPE

The Finder bracket shoe is available for the 50mm Finder

Bracket II or XY Red Dot Finder II.

Finder Scope

Caution:Never use the screws that are provided the finder

bracket shoe. The long screws will exceed the allowable

depth of the thread and this could result in damage to the

drawtube.

Loosen both the dovetail plate lock screw and safety screw

until the tips of these screws no longer extended into the inner

part of the dovetail block.

Slide the dovetail slide bar M on the optical tube into the

dovetail mounting block as shown in the figure and tighten the

dovetail lock screw until snug. First tighten the 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 finder bracket shoe that is sold

separately.

Place the finder bracket shoe so that the sunken part on the

attachment surface of the finder bracket shoe faces the

eyepiece side of the FL55SS. Securely tighten the screws

with a Philipps head screw driver.

Attaching the Finder Bracket Shoe (Optional)

Dovetail

Slide Bar M

Sunken part

Sunken

Setscrew

Safety Screw

Lock Screw

Finder Bracket Shoe

(Optional)

Finder Bracket Shoe

Finder Bracket

(Optional)

M4x12mm screws

(two pieces)

Finder Setscrew

7X50mm Finder with illuminated

reticle (Optional)

The FL55SS and AP Mount are shown by way of example.

Refer to your mount instructions along with this manual.

The AP Mount is shown by way of example.

D=55mm f=300mm

VixenCo.,Ltd. MADEIN JAPAN

D=55mm f=300mm

VixenCo.,Ltd. MADEIN JAPAN

VISUAL OBSERVING

The telescope requires an eyepiece to view images. The

eyepiece determines magnification of your telescope.

The telescope may come with the eyepiece as standard

accessory when you purchase it as a package including a mount.

Eyepiece Visual Observing Configuration

Focusing the Telescope

Dividing the focal length of the telescope by the focal length of the

eyepiece gives the magnification.

Example: Using the FL55SS with SLV20mm or SLV5mm eyepiece.

Look though the 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 with long focal length (large number

in millimeters). When using an eyepiece with short focal

length, the image becomes dimmer and the range of field of

view becomes narrower. Also, the range of sharp focus

becomes smaller.

Magnification of the Telescope

Eyepiece

SLV20mm

SLV5mm

Magnification

15x

60x

Telescope’s

focal length

300mm

Telescope’s

focal length

20mm

5mm

合焦ハンドル

（フォーカスノブ）

Focus Knob

FL55SS Visual Back

Extension Tube VC

60mm to 43mm

AD Ring

Eyepiece Adapter 31.7

45mm DC Ring

Eyepiece

31.7mm

(Optional)

Eyepiece

31.7mm

(Optional)

Prism Diagonal

31.7mm

(Optional)

Some of the optional accessories shown in this diagram will be needed if you take pictures with a

DSLR camera, a compact camera or a CCD video camera.

Photographic Configuration

T-C Ring

CCD Video Camera

T-Ring (appropriate to your camera)

Remove the inner ring

Smartphone

Camera

Adapter

LCD Monitor

Eyepiece Projection Adapter

Eyepiece 31.7mm

Eyepiece

31.7mm

FL55SS OTA EA42mm to

31.7mm SX

Flattener HD for FL55SS

Filter 52mm

*1 A filter may cause ghost if it is attached.

*2 It is included either in a Flattener HD Kit for FL55SS or a Reducer HD Kit for FL55SS.

Focal Reducer HD5.5

EX Tube 66

Wide Photo Adapter 60mm

Wide Photo Adapter 60DX for EOS

60mm Ring with

T-thread Adapter

DSLR Camera Body

DSLR Camera

Body

Canon EOS

(Canon Rebel)

Camera Body

Smartphone

Extension Tube VC

D=55mm f=300mm

VixenC o.,Ltd. MADEIN JAPAN

68キ-9-(DC1450GA)(M)

5-17-3 H i gashitokorozawa,Tokorozawa,Saitama359-0021, Japan

Phone +81-4-2944-4141(International)

F a x +81-4-2944-9722(International)

https://www.vixen.co.jp

Specifications

Objective Lens

Lens coatings

Effective Aperture

Focal Length

Focal Ratio

Light Gathering Power

Resolving 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 shoe and 5mm Allen wrench

Objective Lens

Focuser

Dimensions and Weights

Accessories

Fluorite apochromatic lens

Multi-coated

55mm

300mm

f/5.5

62X unaided eye

2 .11 a r c s e c .

10.5

Rack-and-pinion focuser with drawtube lock screw

60mm, 43mm and 36.4mm

31.7mm

282mm

80mm

1.5 kgs / 3.3 lbs

Model FL55SS

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