Fujifilm EC-XH W Wide Eyecup

Since I've liked my JJC eyecups on my prior camera models, I initially bought the less-expensive JJC version for these newer Fuji cameras. But against my eye socket, the JJC eyecup for X-H1 (X-T1, X-T2, GFX-505) made a poor light-tight seal: in terms of its height profile (see photo), the JJC eyecup is rather flat across the top, bottom, and nose-side, then has a "flap" that bends out towards the face on the side away from one's nose. The profile is an angular bend, not a smoothly curved contour in height. Maybe this was intentional to help those who wear glasses (as the flatness around 3 sides of the eyecup might[?] help accommodate eyeglasses), but for me the JJC didn't seal out light very well ... at the place where the bend happens, without glasses the eyecup is away from my face, and that's where light can enter.So I decided to spend the extra money for the Fuji EC-XH W eyecup, and I'm very glad I did. The eyecup edges that contact the face have a gently curving height profile from the nose-side to the far-side, which I find much more ergonomic: very comfortable and very light-tight. If you don't wear glasses (or if you can use the viewfinder's diopter adjustment to do without glasses when using the camera), I would strongly recommend the Fuji EC-XH W eyecup over the JJC XTL II.As for interference with the tip/tilt rear viewscreen -- on the X-H1, if you pivot the viewscreen by grabbing the left edge and swinging it to the right, the top of the screen will run into the bottom of the eyecup when the screen is swung out to about 30-degrees. But once the viewscreen has been released from its flush position on the back of the camera, long before swinging out to 30-degrees, the bottom of the screen can be tilted away from the camera (angling the screen upwards) which allows the top of the screen to move clear of the bottom of the eyecup. Then the arms on the left and right sides of the viewscreen can swing down fully (with no interference from the eyecup) and at that point the screen can be tilted up or down as desired to accommodate shooting low to the floor or shooting with the camera above your head. I'm sure It will just take some practice before releasing the viewscreen and moving bottom-out/top-down to clear the eyecup becomes second-nature. And with the viewscreen arms on the left and right fully deployed, then you can even pivot the viewscreen beyond the 30-degree position -- all the way to the full 60-degree position -- should you need to view the screen from side (or from either above or below with the camera held in a vertical [portrait] orientation), with no interference from the eyecup.As for how securely it mounts to the camera: when I first slipped it into the slots on my camera and moved it down until it met resistance, I could sympathize with reviewers who said it could slide off easily. *** BUT, I then noticed that the "equator" of the circle around the eyecup was ABOVE CENTER relative to the viewfinder lens on my camera, suggesting the eyecup needed to move farther down. Pressing it down more firmly *beyond* the point where initially it had met resistance (but not hard enough to break it), I discovered that it actually could move farther down and just beyond that point it "clicked" into place. In that position, it's definitely "locked" in place and it will not easily slide off, and in this locked position the center of the eyecup is centered behind the viewfinder lens.All-in-all, I'm very happy with this purchase.

Comfortable but it does interfere with movement of the back screen.

The eyecup effectively blocks all external light from the viewfinder experience.

The concept of the eyecup is great, however it can be extremely frustrating. The connection of this eyecup to the camera is flimsy at best. Because of this, if it brushes up against anything at all, it falls off. That is even more frustrating when considering the cost. If this would just connect solidly, it would be awesome.

It works way better than the original!

really good product fit well for my XT3, I just bought another one for my XT2 wish they make for Xpro

This eyecup is great for use outside with bright sun. It completely covers your eye and you can see your finder without glare. The only drawback is that I must take off my glasses. I just adjust my camera's diopter and shoot with glasses off when I am using this.

This eyecup seems to lack the extra little nubs of plastic to keep it attached to the camera. Every time my camera goes into a bag, this falls off.