For the camera you are using it is definately the way to go but consider the option of getting a camera that will have the features without using a DP filter.
So far SPC900 is the most popular and is quite cheap ATM and has all the controls need to start. I use a Agent v5 webcam although I have turning out good images it is a pig to modify, after modifacation will cost a lot more than the SPC900 but has a much higher resolution. I will be supplying these once I figure out the neatest way to modify them. Detroyed 2 now and on my 3rd one
. I will also be designing a Peltier cooler for it as well.
Also getting the best capture software is a must, I have used a lot of them but the best although not entirely is
SharpCap. This display a very user freindly exposure control on the right side but careful consideration is needed as the drivers are the one to determin whether they are available on the right side. Not all cameras work.