Telescope Camera Mount Adapter 1.25" inch Extension Tube T Ring for Canon EOS | eBay
Amazon.com : SVBONY SV112 Telescope Camera Adapter Kit for Canon EOS Rebel SLR DSLR Prime Focus and 1.25 inches Variable Projection Eyepiece Astrophotography : Electronics
DayStar Camera Quark Solar Filter with Canon Lens Mount: H-Alpha Prominence Model # DSZTCP