William Optics Flat61R 61 Image Field Equalizer for ZenithStar

Tight stars to the corner

The William Optics Flat61R 61 gives your photos a flat field of view, so your stars don't stretch toward the edges. Your image remains tight, neat and even. You see this especially with large sensors and fast telescopes. So you don't have to choose between a wide shot or sharp stars - you get both.

Clear image without distortion

The flattener corrects the natural curvature that occurs in any telescope. Without a flattener, corners become soft and details lose their shape. With the Flat61R, your stars remain small and round across the entire frame. Your end result instantly looks more professional, even when you first start astrophotography.

Solid system with no backlash

You screw the flattener directly onto the focuser. Everything is tight and stable, so your camera doesn't tilt or shift. This gives you peace of mind during long exposures. You can see in your shot that everything is nicely straight, without distortion from weight or movement.

Easy to tune to your camera

The flattener is adjustable so you set exactly the right distance. You simply rotate it into position and lock it in place. You don't need any additional extensions. This keeps your setup compact and reliable.

Connecting filters directly

Do you like to use filters? You just screw M48 filters onto the flattener. You don't have to mount anything complicated. Just screw the filter on, secure the camera, and you can start shooting right away.

Specifications

Capacity

General