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Specification
AgeRangeDescription : Teenager" or "Teen
Author : Steve Herman
Binding : hardcover
Brand : starboosa
BulletPoint1 : Focusing mask will help you achieve precise focus in a few seconds. Provide the best focus for your telescope quickly and easily without guessing.
BulletPoint2 : Mask fits telescope tubes with an outer diameter of 58mm to 83mm.(2.28" to 3.27") Suitable for use on all types of telescope - reflectors, rafractors, Dobsonians, Mak-Cas and SCTs.
BulletPoint3 : Once accurate focus is achieved, the mask produces a distinct, intersecting 3-line pattern.Its material composition is strengthened plexiglass, which is shaped by precision laser cutting, which is strong and durable. The plexiglass material is not easy to become brittle.
BulletPoint4 : Once mounted on the telescope, three unique adjustable cushion brass bolt provide a firm grip. The rubber sleeve on the surface of the brass bolt can effectively prevent scratches on the surface of the lens barrel, increase the fixed friction, and improve the stability of the installation.
BulletPoint5 : Compatible with any type of telescope, especially suitable for astrophotography, to help you get more accurate images.
Color : Multicoloured
ColorFamily : Multi-color
CompatibleDevices : Reflector telescopes,Refractor telescopes,Astronomical Telescope
CustomerPackageType : FFP
ExternallyAssignedProductIdentifier : 9331632257816
ExternallyAssignedProductIdentifier1 : 1649161387
ExternallyAssignedProductIdentifier2 : 9781649161383
ExternallyAssignedProductIdentifier3 : 9781338257304
ExternallyAssignedProductIdentifier4 : 09781338257304
Finderscope : Reflex
FinishType : Glossy
FocusType : Manual Focus
Genre1 : Mathematics
Genre2 : Study & Teaching
Genre3 : Education
Genre4 : Schools - Levels - Elementary
Genre5 : Education
Genre6 : Teaching - Subjects - Mathematics
GpsrSafetyAttestation : 1
IncludedComponents : LIBRARIES.MATH READERS CHILDRENS LITERATURE
IndoorOutdoorUsage : indoor
ItemName : My Dragon Books Emotions & Feelings Box Set
ItemPackageDimensions_Height : 28.0924 centimeters
ItemPackageDimensions_Length : 11.303 centimeters
ItemPackageDimensions_Width : 24.9936 centimeters
ItemPackageQuantity : 1
ItemShape : Rectangular
ItemTypeKeyword : books
Language : english
Language1 : english
Language2 : english
Language3 : english
Manufacturer : My Dragon Books
Material : Nylon
MaximumReadingInterestAge : 10 years
MaximumRecommendedGradeLevel : 5 us_school_grade
MinimumReadingInterestAge : 8 years
MinimumRecommendedGradeLevel : 3 us_school_grade
ModelNumber : SB-1121
MountingType : Poster
NumberOfBoxes : 1
NumberOfItems : 1
Orientation : Landscape
PackageLevel : unit
Pages : 48
PaintType : Watercolor
PaperFinish : glossy
PartNumber : SB-1121
Pattern : Solid
ProductDescription : 60 Bahtinov Mask
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The role of the Bahtinov mask - When placed in the front of the telescope, the telescope focusing mask can easily achieve fast and precise focusing without guessing. These focusing aids are also called Bahtinov, and the groove pattern is cut by laser. The mask can achieve precise focusing with any type of telescope, which will produce a unique, intersecting 3-line pattern.

Suitable telescope diameter range for Bahtinov mask - Fits telescope tubes with an outer diameter of 58mm to 83mm.(2.28" to 3.27") Suitable for use on all types of telescope - reflectors, rafractors, Dobsonians, Mak-Cas and SCTs.

Bahtinov mask application - Astrophotography application, when fast and clear focusing is required. Help astrophotographers save time and avoid blurry images caused by slight defocusing of the exposure. Just focus on the celestial object you want to shoot or nearby bright stars and adjust the focus until the intersecting 3-line pattern is displayed, indicating that precise focus has been achieved.

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Package Include:
Bahtinov Mask
3 X Brass bolt

ProductSiteLaunchDate : 2023-02-10T15:48:06.626Z
PublicationDate : 2023-02-09T00:00:01Z
RecommendedUsesForProduct : Education, teaching Earth sciences
RoomType : Classroom
Size : 60 Bahtinov
StreetDate : 2019-01-01T00:00:01Z
Subject1 : 4-8 Years
Subject10 : Education
Subject11 : Education/Schools - Levels - Elementary
Subject12 : Education/Teaching - Subjects - Mathematics
Subject13 : General
Subject14 : JUVENILE NONFICTION
Subject15 : JUVENILE NONFICTION / Mathematics / General
Subject16 : JUVENILE NOVELTY
Subject17 : Juvenile Grades 3-4 Ages 8-9
Subject18 : Juvenile Non-Fiction
Subject19 : MATHEMATICS / Study & Teaching
Subject2 : Children's Books
Subject20 : Mathematics
Subject21 : Mathematics/Study & Teaching
Subject22 : Schools - Levels - Elementary
Subject23 : Study & Teaching
Subject24 : Teaching - Subjects - Mathematics
Subject25 : math; problem solving; reading; problem-solving; math problems; word problems; real-world math; real-life math; computation; computational skills; 2-digit addition; 3-digit addition; simple math; simple addition; subtraction; fractions; measurements; tell time; geometry; common core; algebraic thinking; algebra; logical reasoning; money
Subject26 : math;problem solving;reading;problem-solving;math problems;word problems;real-world math;real-life math;computation;computational skills;2-digit addition;3-digit addition;simple math;simple addition;subtraction;fractions;measurements;tell time;geometry;common core;algebraic thinking;algebra;logical reasoning;money
Subject3 : 4-8 Years
Subject4 : Children's Books
Subject5 : JUVENILE NONFICTION / Mathematics / General
Subject6 : MATHEMATICS / Study & Teaching
Subject7 : Mathematics/Study & Teaching
Subject8 : EDUCATION / Elementary
Subject9 : EDUCATION / Teaching Methods & Materials / Mathematics
SubjectCode1 : EDU010000
SubjectCode2 : EDU029010
SubjectCode3 : EDU010000
SubjectCode4 : EDU029010
SubjectCode5 : JNF035000
SubjectCode6 : MAT030000
SubjectCode7 : MAT030000
SubjectKeyword : 'fiction', 'children''
SubjectKeyword1 : math; problem solving; reading; problem-solving; math problems; word problems; real-world math; real-life math; computation; computational skills; 2-digit addition; 3-digit addition; simple math; simple addition; subtraction; fractions; measurements; tell time; geometry; common core; algebraic thinking; algebra; logical reasoning; money
SubjectKeyword2 : math;problem solving;reading;problem-solving;math problems;word problems;real-world math;real-life math;computation;computational skills;2-digit addition;3-digit addition;simple math;simple addition;subtraction;fractions;measurements;tell time;geometry;common core;algebraic thinking;algebra;logical reasoning;money
SupplierDeclaredDgHzRegulation : not_applicable
TargetAudience : Children/juvenile
TargetGender : unisex
Theme : Nature
UnitCount : 4
UnspscCode : 55101500
WallArtForm : poster