Comments about Hoodman Hoodman HoodEYE, Eyecup for the Canon 22mm Viewfinder, fits Canon Digital SLR's 1D, 1Ds II & 1Ds III.:
Description seems to be mixed up. According to Hoodman, the "H-EYEC22 is for Both Canon 1D MARK III / Canon 1DS MARK III Models. *Also fits Canon 7D & Mark IV."So, it DOES NOT fit the 1D, 1DS up to Mark IIN. I bought the 22mm as per Adorama's product description for my 1D Mark IIN and it is too large. [...] I am returning it to exchange for the 18mm size. So double check Hoodman's website to find your correct size before ordering.
Comments about Hoodman Hoodman HoodEYE, Eyecup for the Canon 22mm Viewfinder, fits Canon Digital SLR's 1D, 1Ds II & 1Ds III.:
A bit pricey, but very good at keeping out stray light and helping to center your eye properly on the viewfinder.