i'm tryin to get both slides and digital photos of my work, most of which is too big to scan. i have quite a few 18x24 graphite drawings. i can't seem to get any good slides or photos because of the way graphite reflects light. i've tried taking photos outside on both sunny and overcast days, i've tried in open shade, i've tried with studio lights, nothing seems to work, i keep getting an awful glare off the drawings. does anyone know of a good way to get slides or digital photos of work done with graphite??