VariMax Pro-Series 1.25" Variable Eyepiece Projection DSLR Camera Adapter for Telescopes Fits any DSLR or MIL camera with appropriate T-Ring (T-Ring not included). Fits into a 1.25" Eyepiece Port or onto a Male T-Mount. A 2" Barrel for use in 2" Ports is optional ($24.95). Use your 1.25" Eyepieces with an Upper Body Diameter up to 2.5" and Height of 3.5". Laser Engraved Extension Scale for Easy Repeatability. Awarded "Hot Product for 2015" by Sky & Telescope Magazine!