Originally posted by Mistral75 Says who?
(apart from you, obviously ) The DA 40 and DA 70 both can cover full frame but they were not made for full frame. APS-H crop would ensure that these lenses don't have any problems. APS-H could well be the sweet spot for these lenses. I would rather have an APS-H crop that uses more of the pixels the sensor has.
As for cropping a full frame capture after the image has been taken doesn't help me while I am taking the image in the first place. I don't crop my images. I frame the images from the viewfinder. So I would rather have an APS-H crop in the viewfinder so I can better realize the composition while taking the image.