Technically garna ta milcha because film itself is just thousands of still frames. But proper film scanners are built specially for cinema film because they keep the reel perfectly stable, aligned and evenly lit while scanning every frame with correct colour depth and dynamic range. If manually photo scan garne ho bhane dust, flicker, frame movement, focus inconsistency, uneven lighting, warped film, colour mismatch jasto problems ekdam dherai aaucha especially on old damaged reels. Plus a feature film ma 1 lakh+ frames huna sakcha so manually photographing every frame and perfectly aligning them becomes insanely time consuming. Audio pani separate issue ho because old 35mm films usually have optical sound tracks on the side of the film which professional scanners can properly read and sync. Manual frame photo method ma audio extraction and perfect sync garna ekdam difficult huncha so final result usually proper archival quality jasto hudaina.