| boxerfan,
Your Paphs and Phals could be grown in an east window (ideal) a west window (if it's not too hot in the evening) or even a south window if it is shaded from outside as by a tree or if not placed directly in the window - in other words, no direct sunlight.
Your Paphs could also probably be grown in a north window.
The Brassia and Brsdm. could go in the south window if there is a sheer or you could try the east window. They like higher light levels than Paphs and Phals but can still be burned by too much direct light.
In more than 10 years of orchid growing, I have never measured footcandles, and have never bought expensive light meters. I've only used generl light indications: high-light, medium-light, and low-light along with light qualiity descriptions like "bright indirect" light or "dappled shade". I've found these to be much more practical, and I've found that people seem to more quickly understand these light indications. They're also easy to match up with locations in the home like: medium-light - east or west window.
Let us knowhow it goes for you and happy growing!
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