Vixen Telescope Focal Reducer for F7.7 ED

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    Vixen Telescope Focal Reducer for F7.7 ED
    Vixen Telescope Focal Reducer for F7.7 ED

Vixen Telescope Focal Reducer for F7.7 ED

3666

  • $358.50

For photography of nebula or star clusters

This reducer is designed to shorten the effective focal length. This allows shorter exposure times and a wider field of view for astrophotographers. Since you can obtain a wide field of view, it becomes easier to capture nebulae and star clusters that have spread.

Enquire for more information or email us specifics at sales@astro.com.sg.

Vixen Telescope Focal Reducer for F7.7 ED Description

  • Spot Diagram

    Reduce the focal length (0.67x) and make F-ratio fast. It also has the effect of reducing the aberration near the edge of imaging field.

Focal Reducer for F7.7 ED

  • Usable on
    ED81S, ED81S II, ED103S, ED115S
  • Lens coating
    Fully multicoated
  • Prime focus photography
    Wide photo adapter 60mm and T-ring are needed separately
  • Eyepiece projection photography
    Not available
  • Visual observation
    Not available
  • F-ratio
    ED81S / 625mm（F7.7）→419mm（F5.2）
    ED81S II / 625mm（F7.7）→419mm（F5.2）
    ED103S / 795mm（F7.7）→533mm（F5.2）
    ED115S / 890mm（F7.7）→596mm（F5.2）
  • Weight
    174g