Exceptional product!
because it is unique in its features, because it is well crafted, because it is solid and precise. The only downside is that a 4x stitched panorama is not possible with solidly fixed 30° angles(as featured in the lens).
Wasn't sure if I was going to use the TSE frame that much. Turned out I use it more often with my TS-E 24mm lens than with the 17mm one. With the 17 mm it doesn't happen that often that I can use or even need the extra field of view but it does occasionally. Using it with the 24mm lens more often when I just need a little bit of extra FOV but don't want to sacrifice resolution by using the 17 mm lens and cropping the image in post. Also using it with the 24mm lens in order to stich multiple frames together to get a higher resolution for a photo that the 17 mm could capture with fewer pixels. Thinking about getting the frame for the TS-E 50mm as well, but it's even more expensive than the 17/24 mm frame.
I'm an architecture photographer. I use it with 24mm & 17mm. Zero problem for stiching or parallax !! Diagonal shift is made easy. Very solid materiel, reliable.
The best accessory ever bought.
I hope one day, i could afford the RG1 and panoramic head.
My only regret is not easy at all that Rogeti has no reseller in Europe...maybe one day ;-)