Review on SUNWAYFOTO DYH 90Ri DYH90Ri Leveling Rotation by Erin Thomas

I already had the SUNWAYFOTO DYH-90 version without the upper swivel arm. I use it to align the pan rotary head. It's very useful to get a level platform without messing around with the tripod to get the perfect level. I purchased this swivel plate version for use with the iOptron SkyGuider Pro. Difficult to find another product with a 90mm worktop. Both versions work great.