Erect Prism Diagonal (TDE100)

Finally, a diagonal that doesn't flip the image sideways for daytime use—makes spotting birds and landmarks feel completely natural. The image stays crisp and clear right to the edge, even with my 25mm eyepiece.

I've been using this prism diagonal for birdwatching through my spotting scope and it's a game changer—finally seeing everything right-side up. The image is crystal clear with no distortion at the edges, even when I'm zoomed in on a distant hawk.

I was tired of my terrestrial views being upside down, and this diagonal corrected everything instantly—the image is now perfectly upright and sharp. The construction feels sturdy, and it clicks into my focuser without any wobble. Makes daytime bird watching through my scope much more enjoyable.