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    Orthoscopic Eyepiece
    商品货号:ECS001967
    商品品牌:Edmund
    详细介绍
    • Excellent for Astronomical Observation

    These popular eyepieces for astronomical observing, offer very wide, flat fields, excellent spherical and chromatic corrections, greater eye relief than Kellners, and freedom from scattered light. With four-element design, coated lenses, mounted in standard 1-1/4" O.D. chrome-plated brass barrels with aluminum tops.

    商品名称
    12.5mm EFL Orthoscopic Eyepiece  
    Effective Focal Length EFL (mm) 12.5
    Apparent Field (°) 44
    Eye Relief (mm) 10.41
    Field Stop Diameter (mm) 8.5
    Outer Diameter (inches) 1.25
    RoHS Not Compliant 
     
    18mm EFL Orthoscopic Eyepiece 
    Effective Focal Length EFL (mm) 18
    Apparent Field (°) 46
    Eye Relief (mm) 15.21
    Field Stop Diameter (mm) 13.5
    Outer Diameter (inches) 1.25
    RoHS Not Compliant 
     
    25mm EFL Orthoscopic Eyepiece    
    Effective Focal Length EFL (mm) 25
    Apparent Field (°) 47
    Eye Relief (mm) 22.23
    Field Stop Diameter (mm) 17.5
    Outer Diameter (inches) 1.25
    RoHS Not Compliant 
     
    4mm EFL Orthoscopic Eyepiece 
    Effective Focal Length EFL (mm) 4
    Apparent Field (°) 41
    Eye Relief (mm) 3.22
    Field Stop Diameter (mm) 2.8
    Outer Diameter (inches) 1.25
    RoHS Not Compliant 
     
    6mm EFL Orthoscopic Eyepiece 
    Effective Focal Length EFL (mm) 6
    Apparent Field (°) 43
    Eye Relief (mm) 4.91
    Field Stop Diameter (mm) 4.2
    Outer Diameter (inches) 1.25
    RoHS Not Compliant 

    商品标记

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