SRF is Sony's in-camera RAW
SRF is the raw sensor data a Sony camera writes at the moment of capture. It's produced by the camera's own hardware and firmware — software can read it, but nothing can manufacture a genuine SRF from a finished PNG.
Looking to convert PNG to SRF? Here's the honest answer — and what works instead.
Turn your file into a share-worthy AI Effect — one tap, no prompts.
PNG is a lossless raster format with full transparency. It keeps every pixel intact, making it ideal for logos, icons, screenshots and graphics with sharp edges.
PNG opens in every browser and image viewer, plus Photoshop, GIMP, Preview and Photos.
SRF is Sony's earliest raw format from Cyber-shot cameras like the DSC-F828, predating the later ARW standard.
SRF opens in Lightroom, RawTherapee and Sony's original software; convert to DNG/JPG for modern use.
No. SRF stores the raw signal a Sony sensor recorded at capture. A PNG is a finished image with that data already baked in and discarded — there's nothing for a converter to reconstruct.
RAW formats like SRF give maximum editing latitude — but only when they come straight from the camera. Converting a PNG to SRF would just wrap a finished image in a RAW container, with none of the benefits.
DNG is an open RAW container. You can convert a camera's own RAW (including SRF) into DNG, but you still can't turn a regular PNG into SRF or any real RAW.
PNG converts cleanly to PNG, JPG, TIFF and WEBP — free, no sign-up, no watermark.