I've been searching around for a few days and have found two that i'm considering purchasing. Any comments on either model would be greatly appreciated.

Thanks.
gs

1) model ET-407026 found here

2) this one ... this site also has some neat adjustable timer circuits (available as kits) ... I was thinking about one of these for my next PJ.


The first is nice as it apparently can adjust to the source of the light to give more accurate readings, the second is just a simple, inexpensive lux meter. Considering I only plan to measure in the 4000-5600K temp range, is the first one really necessary ? Perhaps it's not the color temp of the lamp, but the entire spectrum of light (somewhat related to the CRI) that effects the readings of a lux meter? I don't have much experience in this department, but i'd like to know what i'm buying. Cost in this case is a pretty important factor, as much over $150 i'm going to have a hard time swallowing...

gs

For ansi lumens, the lux meter should adhere to a particular response curve, analagous to what the human eye perceives. This is called CIE curve. (If I remember right)

I bought a lux meter, which has decent specifications just to get quantifiable readings from my projector.

Unfortunately, the one I got (And can therefore give meaningful data on) isn't either of the two you're looking at.

The one I've got cost less than $50 AU so it's pretty basic. At the end of the day, do you really need to get accurate 'standard' readings or do you just want to make comparisons with different setups? If it's just comparisons then a cheaper one will probably suffice.

Thanks Supra... looks like i've got more reading up to do on CIE curves... somehow I knew it wasn't going to be as easy as just buying a simple lux meter... BTW, what lux meter did you buy ?

oz, I think for doing comparision setups, any lux meter would work (i.e. I could say this is better than than, based on relative light readings between different setups), but it would certainly be nice to be able to compare to others that are also using ANSI lux readings... what I will find out is if it's worth the extra money. (I'm assuming that CIE calibrated devices will be more $, but i'll soon see...)