as i know Green screen recording in DVcam isn't a good idea.
but my client want's it. as we use a mixer to preview the result during
shooting i had the idea of recording both the camera and the Keymatte generated by the mixer. will this give better result's or help in post. IMO it will because the Black & White from the key matte wil result in a Y only signal which will not be downgraded by the 4:1:0 color sub sampling. yor opinion wanted.