- TELESCOPE & MOUNT
- DIAGONALS & ERECTING PRISMS
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(New and Compact Scope from William Optics) with 1.25" Carbon Fiber Look Diagonal Included, Order Now !
(High Quality) ZenithStar 71mm DOUBLET ED(FPL51)
A NEW ZenthStar series has been born-again, a beautiful 71mm doublet telescope come with 2" Rack & Pinion style dual speed microfocuser and elegant WO signature white CNC tube and red accent dew cover.
Designed for multiple purposes, this special white-red scope will delight you from the first minute of use. Our new in stock (Field Flattener 0.8x reducer) model (P-flat-f6) and 2" CF diagonal is also available as optional accessory, perfect for astrophotography use.
Zenithstar 71 Doublet ED (FPL51) SPECIFICATION:
|Focal Length||418 mm|
|Objective Type||ED Doublet, Air Spaced,
Fully Multi-Coated, SMC coating
|Focuser||50.8 mm (2") Rack & Pinion Focuser
with 1:10 Dual Speed microfocuser
80 mm (3.2") Focuser Travel Length
360° Rotatable Design
|1.25" Adapter||Brass Compression Rings|
|L-type Mount||Integrated L Bracket (fits SmartEQ mount)|
|Tube Diameter||93 mm (3.66")|
|Tube Length||310 mm Fully Retracted
355 mm Fully Extended
|Tube Weight||6 lbs. (2.7 kg)|
Specification for Apochromatic Lenses
All WO refractors objective are double tested and inspected before shipping to our customer, these telescopes are free of coma and astigmatism.
Since all individual lens surfaces are machine coated sometime it could have visual imperfections which do not affect the objective optical performance.
Dimensions of scratches and points shall not exceed the following values:
Surface finish class Scratches Points Accumulation of defects Width,not more, mm Total length, not more, mm, Diameter no more,mm, Quantity, no more Diameter.
|Scratches||Width, not more, mm||0.025mm|
|Total length, not more||1/4 of total lens diameter.
Quantity no more 3
|Dots or spot points||No more, mm||0.4mm|
|Quantity, no more||3|
|Accumulation of defects||Limited area, mm||0.8mm^2|
|Total area of scratches and points, no more, square mm||5.8mm^2|
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