Smartphone Light Meter Attachment for iOS Devices

Works like it says

A great product in that it seems to work with all phones and with Adam Wilt's Cine Meter II app, which just added a color temperature feature. The Luxi comes with a small pull-string bag and is ok build quality, but it does slide around a bit on my iPhone 4s, so you need to check to see that it's properly centered before relying on the reading. It's also so small that I've misplaced it a few times, but that would be an issue with any incident ball. Overall very happy with it. And considering that color temp meters cost $1000+, this plus a $25 app is a huge bargain!

Although this small piece of plastic is overpriced to me at $30, the total value of having a functional light meter can offset the sting of paying $30. I am not aware of a DIY option for one of these light diffusers, so this is the next best thing. Online reviews suggest that this tool in combination with Luxi's own app, or the highly rated MyLightMeterPro app can get readings that are on par with more expensive Minolta or Sekonic light meters. For me, It has helped me to expedite the process of getting good exposure. (vs the constant re-taking of photos).

I cannot honestly say that it is good or bad because it didn't work with my phone. HOWEVER, I contacted their customer support and they were responsive and helpful. That said, I struggled to figure the thing out as many other posts state. The documentation is weak and even the user manual obtainable through the QR code on the box was less than helpful.That said, the device seems well enough made, and the app seems like it would be pretty straight forward when it works. When it does not, you have no clue what you're doing wrong - when in fact you're NOT doing anything wrong. My phone was incompatible! It does not have an incident light sensor for the front-facing camera so there was simply nothing for the app to do.The way I discovered this was by downloading a different incident light meter app (Photo Friend Exposure & Meter) and trying that. After installation, it quickly reported that there was no incident light sensor found on my device. And this "test" could be done before even ordering the Luxi device. That would be one solution.Luxi's customer support suggested in their reply, to cover the light sensor with your thumb (if it is not located close enough to the lens for their device to cover it) and see if the app responds then. This was not my problem, but it worked when I did it just to see. The app "thought" I had a Luxi device attached but still did nothing.SO HERE'S MY SUGGESTION: Because they vary widely, if you're using an Android device install the Luxi app before you buy this, place your finger over your light sensor to trick the app into thinking you have the device, and see if it responds. If it does, I'm betting you will have no problem with the device and the app will work and be pretty straight forward. I would actually be curious to know if this helps anyone!

First off you should know I'm a professional cinematographer. I own a Sekonic L-758 Cine meter and have relied on it for years. When I read a review of the Cine Meter 2 being used with a Luxi, I had to see for myself how good it really was. And I was blown away. This little Luxi, in combination with the CM2, gives me just as accurate and, in a few cases more accurate, readings than my Sekonic! I've used it on everything from short films to features, commercials and web videos. All my shots have turned out beautiful. I highly recommend it.

Meh. I have been using this for a couple of months with mixed results. It's just so flimsy and cheap. And very easy to lose. It slides around a lot when you put it on your phone so don't expect very stable readings. I will say that if you can make it work it's a way better option than paying for the ridiculously priced 1/8" audio jack or lighting port contraption that's around $300 or more.

Since this was not super expensive I thought I would give it a try. I have times that outdoors a light meter could come in handing, but use it so rarely that I don't want to buy the real thing. For this to work right you need the app to work right. So with a standard light meter, you usually put in one or two values and the light meter calculates the third. The app allows you to pick a value, but you can't really enter it in (at least without instruction I could not). So really what you get is a device that picks all three values and then you have to figure out how to change the F-stop to accommodate it. I would rather go manual and use trial and error. I have lots of good ratings, but I am just throwing it away after 1 hour. It also did not fit well on my Galaxy S6 Active.

I am using this incident light gatherer in conjunction with the color meter capability of the cinemeter 2 app to determine the effects of various alternative diffusions used with movie and tv lighting.I previously used a professional meter with an initial cost $1800 which recently bit the dust . This works great for the intended use.