These active video adapters are the only way to go, and they work in multi monitor configurations.

This was great for my Samsung. However, I made the switch to iphone and it is not compatible with their adapters :(

Works much better than unpowered adapters. Steady and reliable signal.

It is an affordable alternative to name brand adapters. It was a great addition to my equipment.

I liked everything and I liked the carrier and extra ear adapters

the fit was great, not heavy, and with the adapters I can use it on different units.

[For unclear reasons this review and all others for the Mark I lens have disappeared, I'm re-posting mine]I purchased this lens about 8 months ago as my first "L" glass - since then I have added the 24-70 f2.8 Canon (without IS) to complete the range 24-200 mm at f2.8. I really can't say enough good things about this lens, though in retrospect I might have bought the 24-70 first as it is a bit more versatile. The build quality is terrific and the IS is VERY helpful especially at the longer focal lengths. The f2.8 also allows you to get a teleconverter to double it to 400 mm (though I don't have that as of yet). Though I'm sure the f4.0 is a great lens, the extra stops on this lens allows you to take existing light pictures in amazingly dim conditions. One of my primary uses for this lens will be school programs as it will allow pictures without flash in many of those conditions (especially after a body upgrade to push the ISO a bit - but that's another story). This is the type of purchase that changes the level of photography you are capable of. If you can afford it, you will be very pleased with the results and will have a lens that will likely be a mainstay of your equipment likely for decades. Other reviews have noted that this lens turns heads / looks impressive and that is true though I don't think that is a reason to get it - the quality of the pictures is the big payoff.I decided to write this review after hearing that they are coming out with the Mark II version of this lens with "fourth generation" IS and an additional set of lens elements that are supposed to further improve the picture quality. Honestly, I don't see how further improvement in image quality is possible after seeing what this bad boy can do. The modified IS is supposed to allow for an extra stop or two as a hand-held lens which is nice if you are really shaky but I doubt will really improve things much - of course IS is really a "portable tripod" and does not allow additional stops for subjects in motion. IMHO the IS on this lens is more than sufficient for the task and no modification is needed. As I understand it, the Mk II may be priced around $2400. I hope that they keep producing this "Mk I" lens since my advice would be to buy this one and use the money saved perhaps for a prime lens or the aforementioned teleconverter.ADDENDUM: Indeed, the Mark II came out at a pricey $2500. The first 2 reviews for that glass are reportedly people who compare the lenses directly which I cannot do, of course. If I had it to do over again I would still buy this one and perhaps use the leftover funds to upgrade to a T2i body.

Works like a charm, unlike cheaper adapters I have bought .