My old Canon EOS elan II film camera has now lost its mind and needs to be put down. I am shopping for a digital to replace it (and hopefully be able to use my AF lenses?) but am not clear on what resolution of digital is equivalent to 200 or 400 ASA film in 35mm. I heard that my film camera had a resolution that was equal to a 15Megapixel camera, which i know I cannot afford. Is there any way to equate the effective resolutions of film and digital? There are plenty of used 8Mpx cameras out there that would work for me if it is not a step back in picture quality. Thanks for any help.