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One last thing to add, in theory the DMK with filters should give astoundingly better colour images than the DBK one shot colour, as you get the whole 640x480 resolution for each R, G and B channel.
In a still frame that would probably be true.
In planetary however, we capture a video and select and stack the best frames.
The planets rotate, so you only get a short period of time to get your capture before the rotation blurs out the details. With the DBK you are capturing all three channels at once, so say your total imaging time is 3 minutes. You capture 3 minutes of Red, 3 of Blue, 3 of green all at once.
With the DMK you would only get 1 minute of Red, 1 of Blue and 1 of Green, albeit in higher resolution. Also, the planet has rotated, you have no Red data that is an exact match for your Blue data.
So although you are capturing less resolution per channel with the DBK, you are capturing data for longer, so you end up getting a lot of that detail back, which I think is part of the reason that I have never seen DMK images that blow away the DBK images like people think they will.
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