At maximum, my device opens to about 8.4" long. The smallest size is about 2.4". It wouldn't accommodate an iPhone 5s (2.3" wide), for example. It accommodated my largest tablet, the 12.3" HP Chromebook X2 (8.3"). It bows a little for larger devices. The device is mostly plastic, except for the orange silicone grippers and internal springs/rods. It has a brass insert on the bottom handle and behind the main body. The top handle has a cold shoe mount. My device weighed about 2.3 ounces. The grippers don't work particularly well for large cases with flat sides. Thinner devices (<8mm) and devices with rounded edges (like iPhone 6-11) are probably ideal.

I use both large format and digital formats. I find the quality very good and well presented in a case. I will inform my colleagues about my results.

This is a great accessory for my camera. It's easy to use and helps up the quality of my work.

Exactly what I need for a full format camera and max medium telephoto

I used this with the snake camera. Worked great

High quality product

Perfect accessory for your Fujifilm X-Tx camera to use Nikon/Nikkor lenses. It's a nice, solid adapter with no play between the lens and the camera. Please note that this adapter does not pass any lens information to your camera, so everything in M position! Don't forget to set your camera to record "without a lens" and set your adapter settings well for the exif data too. Use 3 dozen vintage lenses with your Fuji X-Tx! tested with X-T2, everything higher works too, and I think X-Hx too.

use the lens on my Canon 5d II full format camera - I am very satisfied with the imaging performance. Of course there is vignetting with an open aperture of 2.8 - but you hardly take pictures with it anyway. There are certainly better lenses - but you have to put down at least twice as much and therefore I can only recommend the lens to everyone who wants to use it from time to time. Anyone who needs a UWW professionally should take a look at the 11 or 15 mm from IRIX.