Mcoplus 1.08x-1.60x Zoom Viewfinder Eyepiece Magnifier for SNY NEX E Mount/Canon Nikon Pentax Olympus Fuji Samsung Sigma Minoltaz DSLR Camera

Works exactly as described. More than happy with the product. Just wish it magnified a little bit more.Only Con is it stops the display screen from moving but I have found that I can take the magnifier off relatively easily (just unscrew it) if I want to unfold the screen. Did read a review saying it "falls off too easily." Certainly don't have that experience. My guess is that person is using the wrong VF attachment for their model of camera...Finding the right one out of the 6 provided was a little hit and miss, but after a couple of minutes of trial and error I found the right one for my Canon 80D.

Item works well enough as far as its magnification is concerned, which I did find helpful for focusing with my vintage lenses. However, on my camera, (Sony A7,) it makes all the information on the edges of the view finder window very difficult to see and also cut off viewing the corners. That might not sound so bad, but trust me, when you actually use it, it's very frustrating. If it were just slightly larger around, it would be much better. On top of that, it covered the sensor on the viewfinder, diamond the monitor screen at all times. Big bummer, because it is helpful for focusing, but the drawbacks aren't worth it.

I’m an amateur photographer with a Canon 5D Mark IV and a few manual focus prime lenses.I primarly bought this to make manual focusing easier. As a bonus, it also ensures your face has a little extra space from the back of the camera when looking through the viewfinder.The build quality of this seems pretty solid. The optics of this are not the best, but for such a small piece of glass it’s fine. There is some pincushioning at the corners, and you lose the ability to easily see the corners without literally shifting your head a bit and looking straight at the corners, but I expect issues like those from a magnifying eyepiece. Other than that I didn’t notice any glaring issues with the build.This came with zero instructions. It wasn’t terribly difficult to figure out, but it took some trial and error for me to get to the point where it is securely attached to my camera and I don’t really worry about it falling off.The basic steps:1. Remove your current viewfinder.2. Find the viewfinder attachment that matches your camera model and slide that piece onto your camera.3. Remove the lens caps from the optical part of the new viewfinder.4. Rotate the Lock/Open nut onto the viewfinder until it is flush. It doesn’t have to be super tight st this point.5. Screw the optical piece of the new viewfinder into the part that you slid onto your camera in step 2.6. Place your hand on the lock nut on the part labeled “lock” and turn it towards “open” until it is firmly in place. It may seem counter intuitive, but this should put pressure on the piece attached to your camera, locking it in place.7. Attach your preferred eyecup.8. Adjust your camera’s diopter.The last step is important. The diopter adjustment *will* need to be done any time you change magnification if you want accurate results.In practice, this eyepiece helps a lot with manual focus. I would still love to change out my focusing screen, but this is a cheap, non-invasive alternative.The main manual focus lens I use is a Carl Zeiss 85mm and has a very long and smooth focus throw. The changes in focus used to be less apparent, but with this eyepiece, using the largest magnification, I feel more confident to take fewer shots and know I have my scene in focus.For that reason, the diopter adjustment is really important.There are many ways to do this but the best way is probably to use an auto focus lens on a tripod, focus at a fixed target, and then turn manual focus off (so as not to accidentally change it). Then adjust your diopter until what you focused on with the lens looks sharp in the viewfinder.I was able to adjust mine on the fly with my manual focus lens without a tripod by taking a shot at my subject and viewing it through the LCD screen at 100%. If, by looking through the viewfinder, I thought it was sharp but the image recorded was not, I adjusted the diopter until what I saw in the viewfinder looked like what I was seeing in the image on the LCD screen.Then, I re-focused the lens, took another shot and repeated the process until the recorded image appeared sharp and I couldn’t tell a difference between the sharpness in the viewfinder and the recorded image.This product isn’t perfect, but it’s the best I’ve found for my 5D Mark IV. I might consider something like this with fixed magnification, but I prefer being able to adjust it for different scenarios even if it means having to adjust the diopter.

You won’t use it after you get it, it magnified the image but you can’t compost your frame

I always had a hard time when I tried to use manual focus on my Canon EOS 2000D. I couldn't tell whether my images were sharp or not, I'm not sure why. But after instaling the magnifier eyepiece, I could easily tell if my focus needs adjustment, so now I can focus on anything I want! It's a whole new world of photography! :) If you have the same problem, go ahead and buy this, you'll be fine. Also note that due to the magnifying effect the image you see in the eyepiece is zoomed, so the actual picture will contain more - I got used to it pretty fast.

I bought this for I can use my MF lens to try to get a better focus but, didn't work for me. The zoom on it is not that great.

It fits perfectly with my Nikon D3x. It is an eyepiece a lot better than the standard one coming with the camera. Very quick shipment, even if I live in Europe.

It's like a binocular- you can only see the center of your viewfinder with a black blurred-out frame. If you move, the circle of vision will move, and while it is in fact a magnifier, my problem is the next: it has a little claw-like piece that blocks the screen of the camera from moving. So, if you need to move the screen, that means 1) Take off the viewfinder magnifier, 2) take off the viewfinder adaptor in which the magnifier stands and 3) move your screen only to do this all over again, just backwards.