Display Status This object is not on display at the National Air and Space Museum. It is either on loan or in storage.

In the mid-1950s the Defense Department requested a system for achieving better quality photographic intelligence using smaller and lighter cameras on high-speed aircraft at high altitudes. In response Fairchild Camera and Instrument Corporation designed the KS-25 High Acuity Camera System, an integrated camera/lens system using a wide-angle 24' focal length lens capable of producing transparencies with resolutions of 140 lines/mm on a high contrast target or 90 lines/mm on a low contrast target. The lens for the KS-25 was designed by Dr. James G. Baker of Spica, Inc. and represented new optics technology to allow wide-angle viewing at daylight illumination on high speed cameras, yet capable of producing a resolution that was effectively diffraction limited.

Identifier

NASM.1986.0028

Processing Information

Arranged, described, and encoded by Jessamyn Lloyd, 2019.

Creator

Fairchild Camera and Instrument Corporation

Date

1956-1967

Provenance

Don Welzenbach, Gift, 1986, NASM.1986.0028.

Extent

2.57 Cubic feet (2 record center boxes)

Summary

This collection documents the development and testing of the f/4 achromatic lens system. The material includes test data, photographs, and drawings, as well as correspondence detailing Baker's successful fight to secure a patent on the lens system.

Restrictions

No restrictions on access

Type

Collection descriptions

Archival materials

Drawings

Photographs

Correspondence

Arrangement note

Arrangement: (by type of material) 1) Contract specifications 2) Purchase orders and receipts 3) Correspondence 4) Patent applications 5) Camera operations manual 6) Performance and environmental tests final report 7) Lens drawings 8) Performance analysis printouts and calculations

Scope and Contents

This collection documents the development and testing of the f/4 achromatic lens system. The material includes test data, photographs, and drawings, as well as correspondence detailing Baker's successful fight to secure a patent on the lens system.

Genre/Form

Drawings

Photographs

Correspondence

Rights

Material is subject to Smithsonian Terms of Use. Should you wish to use NASM material in any medium, please submit an Application for Permission to Reproduce NASM Material, available at Permissions Requests

Names

Fairchild Camera and Instrument Corporation

Baker, James G.

Topics Fairchild KS-25 High Acuity Camera System
Aerial photography
Photographic reconnaissance systems
Aeronautics, Military

Citation

Fairchild KS-25 High Acuity Camera System Collection, NASM.1986.0028, National Air and Space Museum, Smithsonian Institution.

Archival Repository

National Air and Space Museum Archives

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