Model 287 Lens Adapter

Resolve Optics Ltd.

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Model 287, a wide-angle lens adapter from Resolve Optics Ltd., is designed to double the field of view (FOV) throughout the zoom range of any zoom camera.

To date, all off-the-shelf wide-angle adapters have offered a compromise between FOV, distortion and resolution. If the lens achieves the required FOV and minimal distortion, the compromise will be in the resolution, and so on. The result often is “milky,” out-of-focus images that get progressively worse as full zoom is realized.

Model 287 provides a true 0.5× field of view while maintaining minimal distortion and high resolution throughout the zoom range of the camera.

The compromise-free performance is the result of designing the adapter to work with the moving pupils of zoom lenses. Combined with the use of specialized high-index glasses, the design carefully balances a low-distortion, wide-angle view with the higher level of correction needed at the narrow angles of view. The result is a high-quality lens that has full zoom-through capability and that produces high-contrast images, regardless of zoom position, while maintaining resolution and focus to the very edges of the image.

Aimed at the broadcast and high-end medical/industrial market, each production lens adapter is individually collimated to maintain the full focus range of the prime lens. Incorporating an M37 mounting thread, the adapter enables many zoom lens/camera combinations with a standard 45° field of view to achieve a genuine 90° field of view.

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Published: June 2011