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Opticron provides a comprehensive range of zoom eyepieces for the MM3 and MM4 Travelscopes which offer great functionality whilst out in the field in a single, compact eyepiece. The choice of eyepiece is important to ensure maximum image quality and depends on budget and the application for which you wish to use it.
HR3 Zoom Eyepiece (Model 41145)
The HR eyepieces are a fantastic entry-level choice for the value-conscious user and are perfect for general field surveying or birdwatching. Long eye relief is ideal for wearers of spectacles. The HR3 zoom eyepiece has a twist type eyecup and comes with an Opticron five-year guarantee.
HDF T Zoom Eyepiece (Model 40862)
The HDF eyepieces are the preferred choice for image quality, offering large diameter eye lenses and a 'walk-in' field of vision. This eyepiece has long eye relief to enable the full field of view to be obtained, with or without spectacles. It has a twist type eyecup. Covered by Opticron's ten-year guarantee.
SDL v3 Zoom Eyepiece (Model 41270)
Provides the widest field of view of any SDL eyepiece in a smaller lighter package. Designed with a 3x range for maximum versatility, the eyepiece delivers superior cross-field definition and exceptional viewing comfort with or without glasses. Covered by Opticron's ten-year guarantee.
HR3 Zoom Eyepiece
HDF T Zoom Eyepiece
SDL v3 Zoom Eyepiece