The image results were great, but the spring washer mechanism that holds the slide in gobo holder is awkward. Rotation for precise adjustment requires close attention and does not work smoothly. I’m torn. I feel like for the price there should be more refinement. That said, it feels sturdy. The canon to Nikon adapter came with no instructions and I couldn’t figure out how to remove it without googling. The mechanism for release is pretty flimsy. But overall, it’s a lot easier than shooting through a cookie. The one thing I wish is that you could use it without a gobo/cookie insert as a hard light source.