معدل زاوية الكاميرا (CCA-250) لمخفض 645 وتلسكوبات CCA-250 (TKP86200)

The 98mm clear aperture is exactly what my FSQ needed to avoid vignetting with the big reducer, and the rotation feels buttery-smooth when locking down. Took a few minutes to dial in the right tension, but once set, it holds my camera dead level through a whole imaging session.

Finally I can use the 645 reducer on my FSQ without any vignetting issues. The rotating mechanism has a nice, positive feel that locks in place precisely. Installation was straightforward and I got perfect focus and tilt adjustment on my first try.

The 98mm clear aperture is a game-changer for my FSQ setup—it lets the full 645 reducer image circle through without any vignetting that I could spot. Rotating the angle for framing is smooth and locks down tight, so once I set it, it stays put.