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RCC Off-Axis Guider is matched specifically for the RCC-I Coma Corrector and Digital SLR cameras. The guider's 36.5mm body length sets the backfocus at the 91.5mm nominal distance required for the RCC-I.

The RCC Off-Axis Guider incorporates convenient axial and radial guidestar adjustment, without loosening or affecting the main camera connection or orientation. For axial (front to back) guidestar alignment, simply turn the small knurled thumbscrew either direction to shift the guidestar along the optical axis (the thumbscrew actuates an internal mechanism that tilts the internal prism). For radial (side to side) adjustment, loosen the bottom knurled thumbscrew and rotate the body radially (140 degree range). Simple, precise, and robust. Accepts 1.25" autoguiders and guiding eyepieces.

The weight of the RCC Gider by itself is 165gm (5.8oz).

Technical information

  • Inner Connection (lens sided): T-2 (M 42 x 0,75 mm)
  • Outer Connection (eyepiece/-camera-sided): T-2 (M 42 x 0,75 mm)
  • Barrel Size (in): 1 1/4"
  • Schwenkbereich: 140°
  • Pivoting Range: 9.5 mm
  • Optical length (mm): 36.5 mm