Lens, Periscope, MR-3, Freedom 7


Display Status:

This object is on display in the James S. McDonnell Space Hangar at the Steven F. Udvar-Hazy Center in Chantilly, VA.

Lens, Periscope, MR-3, Freedom 7

Collection Item Summary:

This periscope lens gave Alan Shepard his best view outside his small Mercury spacecraft. Shepard had a small screen in front of him on the control panel which gave him the view as seen through this lens. The lens has two magnification settings, high and low, which provided 80- and 1,900-mile fields of view during his 15-minute flight.

The lens was transferred from NASA to the Museum as part of the Freedom 7 spacecraft in 1961.

Collection Item Long Description:

Data Source

National Air and Space Museum

Restrictions & Rights

Do not reproduce without permission from the Smithsonian Institution, National Air and Space Museum

Credit Line

Transferred from NASA


Metal, glass


  • Overall: 6.99 cm long x 13.97 cm diameter, 2.4 kg (2 3/4in. x 5 1/2in., 5.4lb.)
  • Other (small end): 10.16 cm diameter (4in.)

Country of Origin

United States of America


SPACECRAFT-Manned-Parts & Structural Components

Inventory Number


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