Andrew wrote: "Why don't you find out what instrument they used, the software used, and the exact testing process used to get their numbers?"
Come again? I suggested, several times, that you work with SoLux directly as you know what your test setup and method are and SoLux knows theirs. And yes, I think you have an obligation to at least try to resolve this issue since you and others are so eager to publish results that claim the products don't meet published specifications. That's a big deal in my book.
Franz, I don't care
, and only you
dismiss other's data that correlates and disproves Solux marketing. Only you thus far have measured data that correlates somewhat closely with them, using a pretty piss poor product to do so. You asked a question here yourself: Do SoLux bulbs meet color temp specs? They do not.
Multiple people have told you this. At PhotoNet, you suggested we measured the Solux incorrectly didn't you? Since you don't have the proper equipment anyway, and since you don't know how Solux did their measurements, how as an 'engineer
' can you suggest Robin, Tim and I all did this incorrectly? We are very secure in our findings. IF you or Solux don't agree, and you've said that in print, it is up to you
to prove the data collected is incorrect and you haven't done this. On the other hand, several of us, using Spectrophotometer's that range from a few thousands dollars to one over $13K all have data which suggests YOU and Solux are the one's off here. But none of us care, only you have come to no less than three sites to suggest the values Solux uses are correct and worse, that we should all be using their 5000K bulbs and then calibrating our differing displays using differing instruments to 5000K which doesn't wash.
I'd be happy to work with Solux if they want to pay me to do so. Otherwise, based on the data I and other's have collected, I have no reason to go any further. You on the other hand don't seem to be satisfied until someone, somewhere tells you they came up with the same data you did, and maybe with something like a 10 year old Minolta color meter, they will. You'll probably not find them here or on the CS list, folks here are a bit more sophisticated in terms of the equipment and testing methodology they used to come to conclusions.