Fantastic optical ring site used by Dave Scott for photography on the lunar surface during Apollo 15 in conjunction with the 500mm Hasselblad lens, measuring 1.25″ in diameter, engraved on the rim, “P/N SEB33100031-204, S/N 1057.” A small swatch of velcro is affixed on the top. In very good to fine condition.
Accompanied by a signed letter of authenticity from Scott, in part: “I hereby certify that the Apollo 15 Ring Sight included with this letter is from my personal collection and was attached to my Hasselblad camera on the surface of the Moon and in lunar orbit during Apollo 15…This Ring Sight…was an integral part of the Hasselblad 500mm Lens Camera assembly that I used throughout the four lunar surface EVA excursions at the Hadley-Apennine site as well as two days in lunar orbit. The Ring Sight was used when precision aiming was desired for long focal length lenses such as the 500mm lens used on the Hasselblad camera. This Ring Sight was stowed in the Lunar Module (LM) for launch and landing; and during EVA-1 it was transferred to the Lunar Rover in the Equipment Transfer Bag (ETB) for use on the lunar surface. The Ring Sight is a small removable aiming device that was used for precision sighting with the telephoto 500mm lens…During our three EVAs on the lunar surface (18 hours and 35 minutes outside the LM), as well as my Stand Up EVA (SEVA) just after landing and two days in lunar orbit, 293 high-resolution tele-photos were taken with the Hasselblad 500mm tele-photo lens, many of which were taken with this Ring Sight…After the mission, I received this Ring Sight from NASA as a memento of the mission and it has been in my personal collection since that time.” A significant, one-of-a-kind piece of Apollo photography history.
