Vixen A62SS User manual

Instruction Manual for A62SS

PREFACE

This manual applies to A62SS refracting telescope. You may occasionally find descriptions in the text not relevant to your particular 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 A62SS shipping box contains the items listed below. Check if all the items are included.

A62SS Optical Tube

Eyepiece Adapter Unit

Allen wrench of 3mm on a side

(For detaching the finder bracket shoe, if necessary)

Carry soft case

Instruction Manual (This document)

A62SS Optical Tube

Eyepiece Adapter Unit Allen wrench of 3mm on a side

Instruction Manual

Carry soft case

NAME OF EACH PART

4) Crayford Focuser

Provides precise focusing with

no slop or backlash.

(A scale marked on the

drawtube.)

3) 31.7mm Eyepiece Adapter

(Fits an Eyepiece projection camera

adapter.)

5) Drawtube Lock Screw

Do not tighten it too much as it

may cause slippage of the

drawtube.

1) Retractable Dew Shield

Extend it when you use the

telescope.

7) Dovetail

Attachment Bar

2) Finder Bracket Shoe

For Vixen finder bracket

5) Focus Knob

3) Rotatable Focuser

Lock Screw

1) 3/8 inch Thread

Tripod Socket

2) 1/4 inch Thread

Tripod Socket

4) 42mm Thread for

T-ring (inside)

6) Eyepiece

Setscrews

SIDE BASE

41 35

SETTING UP THE TELESCOPE

(Finder scope may be optional at your particular model.)

Loosen the finder scope bracket lock screw on the finder

bracket shoe of the optical tube.

Attach the finder scope (or XY Red dot finder) as shown in the

figure. Tighten the finder bracket lock screw securely.

Attaching the Finder Scope

• 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 attachment bar on the optical tube into the

dovetail mounting block as shown in the figure.

• Tighten the dovetail lock screw onto the dovetail tube plate

until snug (centered on the notch).

• First tighten the dovetail lock screw, and then tighten the

small chrome safety screw.

Note: Refer to your mount instructions as to balancing the

optical tube.

Attaching the Optical Tube to the Mount

For the novice telescope user it is difficult to locate a selected

object in the telescope’s field of view at high magnification.

Using a finder scope will make this easier.

Use of the Finder Scope

Objective

Dew Shield

A62SS Optical Tube

Objective Lens

(inside)

Dovetail Attachment Bar

Safety Screw

Dovetail Plate

Lock Screw

Finder Bracket

Lock Screw

XY Red Dot Finder

(Optional)

Prims Diagonal

31.7mm

(Optional)

Drawtube

Focus Knob

VISUAL OBSERVING

• The telescope requires eyepieces to view images.

• The eyepiece determines magnification of your telescope.

• The telescope does not come with the eyepiece as standard

accessory unless you purchase a package.

Eyepiece

A62SS Visual Observing Configuration

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

the eyepiece gives the magnification.

Note: 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 Telescope’s

focal length

Eyepiece’s

focal length Magnification

Example: Using the A62SS (focal length: 520mm) with SLV20mm or SLV5mm eyepiece

SLV20mm

SLV5mm

520mm

20mm

5mm

26X

104X

Eyepiece 31.7mm

(Optional)

Eyepiece

31.7mm

(Optional)

A62SS

Visual Back 31.7 to 42T

42T to 31.7 AD

Thread for commercially

available 37mm filters

Prism Diagonal 31.7mm

(Optional)

Look though the A62SS 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.

Focusing the Telescope

A62SS Photographic Configuration

T-C Mount Ring

(Optional)

T-ring (Optional)

DSLR camera body (Sold commercially)

Eyepiece 31.7mm

(Optional)

Compact digital

camera

(Sold commercially)

Digital Camera Quick

Bracket II (Optional)

Eyepiece 31.7mm

(Optional)

A62SS

Visual Back

31.7 to 42T

Thread for

commercially

available

37mm filters

42T to 31.7 AD

Eyepiece Projection

Camera Adapter

(Optional)

CCD Video

Camera

(Optional)

LCD monitor

(Sold commercially)

Focus Knob

Specifications

Objective Lens

Effective Aperture

Focal Length

Focal Ratio

Light Gathering Power

Resolving Power

Limiting Magnitude

Focuser Design

Threads

Push-fit

Optical Tube Size

Outer Diameter

Weight

Accessories

Model

Achromatic Lens, Multicoated Optics

62mm

520mm

1 : 8.4

78X unaided eye

1.87 arc sec.

10.7

Crayford type focuser with rotatable

mechanism

42mm for T-ring, 37mm for filter

31.7mm

305mm (370mm at fully extended)

75mm in diameter

1.5 kgs / 3.3 lbs

Carry Soft Case,

Allen wrench of 3mm on a side

A62SS

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