BORG 55FL + REDUCER 7880 SET (6258)

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Fast f/4.5 tele lens with sharp fluorite optics and exclusively designed reducer.
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Description

Lightweight, compact and great optical performance tele lens set combined with exclusively designed reducer featuring comparatively short focal length of 200mm but fast aperture f/3.6.

Reducer (7880) reduces focal length from 250mm to 200mm, makes original f/4.5 aperture to brighter f/3.6, helps to improve image quality from corner to corner including coma aberrations and light fall-off performance. Perfect gear to enjoy with full format cameras.

Great performance is achieved by adopting Canon Optron brand fluorite glass element in the optical construction. Exclusive and precise design results in extremely sharp image with less chromatic aberration compared to low dispersion (ED) lenses.

Highlight features

  • Canon Optron brand fluorite glass element.

  • Combined with exclusively designed reducer.

  • The combination incorporates M57 Helicoid DXII (7761) for subtle focusing.

  • Objective lens optical design: 2 elements in 2 groups, Fluorite element, apochromat, multicoated.

  • Ultra-lightweight of only 624g.

  • Possible to load on portable star trackers.

  • Objective lenses and major parts are made in Japan.

Specifications

Model Name BORG 55FL + REDUCER 7880 SET
Product Code 6258
Focal Length, mm 200
Aperture f/3.6
Min. Length, mm 199
Weight, g 637
Filter Size, mm 58
Minimum Focusing Distance, m 3
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