Originally Posted by cooperdw
Allrighty - I will send back the color wheel and see if they can get it right this time or refund my money. Frustrating.
Any recommendations on reliable sources for an HD72 color wheel?
So ... I returned the color wheel I had ordered, got a refund, and ordered another color wheel from another vendor. This one actually *appears* to be more correct (just from memory, no measurements), but who knows. It dropped in easily, and the projector powered up without fuss.
Color problems are still there. There's an overall magenta cast to the image - even the menus and splash screen (which is magenta instead of blue), and I'm still seeing terrible banding in the images. Here are a couple of photos of grey ramps, showing strange banding and color artifacts in different parts of the value range depending on what I've got running for brightness / contrast controls. It's impossible to calibrate this properly.
Any ideas if another component (possibly the image processor?) has failed in the projector as well? I'd love to keep this one going if I can, otherwise it'll be time to start shopping.
Attached images ...
high_contrast - default contrast settings on the projector, large area of highlights are clipped, and magenta/green color banding near the highlights.
lo_contrast - very low contrast setting (-27), eliminates clipping at the high end, but moves the strange color bands to the mid-tones.
Unfortunately, these are iPhone photos, so white balance has tainted the overall color balance, but you get the idea ...