Optec Alnitak Flat-Man, up to 8-1/8"

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Optec Alnitak Flat-Man, up to 8-1/8"

The Alnitak Flat-Man, up to 8-1/8-Inch Non-Robotic Lens Cap from Optec:


For the imager who doesn't need the robotic capability of the Flip-Flat, the Flat-Man is now available. The Flat-Man uses the same technology as the Flip-Flat, but is manually placed on the OTA for flat field imaging. The only power you need is a USB cable, and our Windows XP software will light and control the brightness of the Flat-Man. Simply rotate your telescope until the dewshield is pointed straight up and place the Flat-Man centered on your scope.

The Flat-Man is an affordable means to achieve excellent flat fields. For dewshield OD's up to 7.625-inches.


  • Lamp Diffuser Diameter: 7.7-inch (195 mm)
  • Lamp Illumination Diameter: 6.7-inch (170 mm)
  • Control Box Dimensions: 1.35 x 3.15 x 4.2-inches (34 x 80 x 106 mm)
  • Weight: 12-ounces (0.34 kg)
  • Power requirements: 5VDC provided by USB interface
  • Minimum OTA/dewshield OD: 4-inch (stock #OP-19055)
  • Maximum OTA/dewshield OD: 8.125-inch (stock #OP-19056)
  • Alnitak Software Compatibility: Windows XP, Vista, Windows 7 and 8.
  • Command Line Program: AACmd.exe


This #OP-19056 Flat-Man package includes: an additional expansion ring allowing use with OTA's having dew shields up to 8-1/8-inch in diameter, USB cable, and software. Fully illuminated lamp is 6.7-inch (170 mm) in diameter.


OPT Product Number: OP-19056


8 1/8"8 1/8"