Summary: I have 2 of these now, and I couldn't be happier. Pros: Light weight and pretty cheap considering they used to be $400. The focus peaking feature is super awesome. This monitor works on both my NEX-7 and Canon T4i and even my GoPro HERO4 Black and Silver Editions.
Excerpt: I needed this to get a clearer image as I'm using my NEX 6 for video. I need to use peaking. When peaking is on the image turns black and white making it difficult to know what's going on with color while using peaking.
Excerpt: I just received this unit in the mail, and as soon as I turned it on, the image on the screen was the same size as that of the image on the native camera screen! (The image only filled about 1/2 the screen!!!) I was using the monitor with my Canon 70D (DSLR). I did my own research, and called B&H.
Pros: Compact Design, Easy To Use, Form-factor, Improves Performance
Cons: Image Not Filling Screen, Limited Compatibility
Summary: As I am getting near 50, this allows me to check focus and color much easier. I also show people their picture and it is easy for them to see. So I bought a second one for my second camera. I use this on my Sony A900 and Sony A850.
Excerpt: Would have been nice for Sony to supply a battery to make this unit work - a big minus to Sony for that. My review: No Sync with Canon G16 although you can view photos taken with the camera on the Sony CLM-V55 (the viewer), but the screen does not appear to work otherwise with this camera.
Pros: Compact Design, Easy To Use
Cons: Limited Compatibility, Pricey, Some Items Not Supplied
Excerpt: I had a problem with the image-size too, using my Canon T4i, and was very disappointed with the monitor for that reason...until today! I messed around with the "info" button on the camera and discovered that by pressing the button a couple of times you can increase the image size on the monitor...