Fotodiox told me on FB "As of right now, you are the only return request.". How is it possible?

ah ah that's a good feedback!

Thank you to everyone that bought the Light Cannon. Fotodiox Pro realizes there are issues with the optical quality of the results, and is working hard to fix the problem.
If you are unhappy with the Light Cannon you may return the merchandise for refund of the product cost or exchange, if the return is made within 14 days of receipt. Refunds will exclude any return shipping charges.
However, if you decide to keep this first generation product, you will have the opportunity to receive the Light Cannon Mark II for FREE, when it becomes available in 3 to 4 months. The Mark II will address the optical quality of the glass with an upgraded optical element. The optical element will be completely redesigned to correct the color shift and to keep sharp focus across the image. There will be two versions of the Mark II: 0.5x (created for full-frame lens to open the aperture up 2 extra stops) and 0.7x (created for APS-C Sensors which will open the aperture up 1 more stop). As a Fotodiox Pro customer that tried our first version of the Light Cannon you will get your choice between the two. With the higher quality optics, the Mark II will retail around $199.95, but the optical quality will be better. In order to get the free Mark II, please contact info@fotodiox.com to request the code for a free Light Cannon Mark II when it becomes available for purchase. Please include your name, email, what website you ordered from, and your order number so we can reference your order. Thank you for your continued support for Fotodiox Pro.

Unfortunately, it takes times to completely design the optical element. Completely different glass (and better quality) is being used in the redesigned element.

If you put out this utterly useless doorstop once and thought it was good enough, why on the earth would we think you wouldn't do it again. I mean this isn't a small oversight. It's doesn't work at all. Did anyone at your company actually attach it to a camera, put a lens on it, take the lens cap off, turn the camera on and look through the viewfinder?I feel like you used customers as your beta testers and we had to pay for it, literally.

Free does include shipping.

Wow, Fotodiox is going double or nothing. It'll be interesting to see if they can redeem themselves, or if they will create another dud ruining their brand image forever.

Guys, be more easy on Fotodiox. Such things happen

I guess I might have been over the top but I don't get how they can ship a product that doesn't come close to working?

This happens, as I said. Something can go wrong, can be even factory who though that it can get $1 extra by using different lenses supplier with slightly different design.

I look at it this way, I paid $5 to ship it to me and I just paid $7 to ship it back. I just lost $12. I know it's only $12, but if someone just walked up to you and took $12 out of your wallet, you'd want it back right? So how is this any different?

It is two way thing. The more you demand the more is damage to the manufacturer and seller.

While it's strange to me that Fotodiox shipped this having apparently no idea people wouldn't like the results, I'm willing to give them a second shot at it and will be holding on to mine until the revised version is released.

And the 0.5x magnifier on the FF-glass version is a very compelling bonus, if the image quality issues are addressed. No reason not to get that one since all my primes are FF-capable.

I was amped to get this thing. I love my other Fotodiox products, and so I trusted them as well. Thanks to the early adopters for saving me the the trouble. THIS is exactly why I always take a wait and see approach. Got burned too many times jumping on the latest tech.

@FotodioxPro could benefit by maybe getting the next version into someone's hands (someone in this forum) early to shoot tests, post photos, and add testimony to it's quality. We're pretty brutally honest around here, as you've noticed. If it passes our sniff test that's a pretty solid endorsement.