BORG 90FL Tele Lens Set CH (6490)

Tele lens with ultimate optical resolution.
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Instructions Manual   PDF, 152 Kb

The 90FL model was the top rank, high-end BORG tele lens until the 107FL model was released. The 90FL has exceptional optical resolution, accomplished by apochromat fluorite glass elements from Canon Optron, Inc. built in the optical design of the objective lens, and a super tele 500mm focal length and aperture of f/5.6. A great piece of gear for shooting wild birds. The 90mm front element diameter does not hamper the 90FL's extreme compact and lightweight capabilities thanks to the detachable carbon fiber made barrel.

You can convert this tele lens to a telescope by attaching a BORG telescope prism and eyepiece (sold separately).

Highlight features

  • Objective lens built with apochromat fluorite glass elements from Canon Optron, Inc.

  • Objective lens optical design: 2 elements in 2 groups, fluorite, apochromatic, fully multicoated.

  • Robust and beautiful carbon fiber barrel.

  • BORG 80Ø barrel system.

  • M75 precise helicoid focusing system.

  • Lightweight construction of 2.4 kilograms (including accessories).

  • Arca-Swiss Quick Release System tripod plate.

  • Objective lenses and major parts are Made in Japan.

'CH' stands for carbon fiber barrel and helicoid.

Attention: BORG camera mount adapters are NOT included in this set. Please purchase the relevant camera mount adapter and other necessary components separately.


Model Name BORG 90FL Tele Lens Set CH
Product Code 6490
Focal Length, mm 500
Aperture f/5.6
Min. Length, mm 480
Weight, g 2400
Filter Size, mm 82
Minimum Focusing Distance, m 4
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