Can anyone comment on using Qimage versus the Canon plug-in for Photoshop? I'm using the iPF6300. Does the plug-in provide noticeably better color rendition, and how does it compare with Qimage for image sharpness.
They are totally different applications/drivers. The benefit of the Canon plug-in is that it can use a 16-bit/channel output, which may offer marginally improved color rendition (very much depends on subject colors). Qimage offers superior resampling algorithms, a very productive environment for nesting (also multiple sizes of the same image), and recreating previous jobs or printing based on a user defined template. Qimage uses the Canon Printer driver for the dithering and printing but provides higher quality image data (including halo free Smart sharpening at the output size).