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 JPG.
Looking to convert JPG to SRF? Here's the honest answer — and what works instead.
Turn your file into a share-worthy AI Effect — one tap, no prompts.
JPG (JPEG) is a lossy raster format that compresses photographs into small files by discarding detail the eye barely notices — the most widely used photo format on the web and in cameras.
JPG opens in every browser, image viewer and editor with no special software.
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 JPG 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 JPG 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 JPG into SRF or any real RAW.
JPG converts cleanly to PNG, JPG, TIFF and WEBP — free, no sign-up, no watermark.