NEF is Nikon's in-camera RAW
NEF is the raw sensor data a Nikon 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 NEF from a finished CR2.
Looking to convert CR2 to NEF? Here's the honest answer — and what works instead.
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CR2 is Canon’s older raw photo format, holding unprocessed sensor data from EOS cameras for maximum editing flexibility.
CR2 opens in Canon DPP, Lightroom, Photoshop and most raw editors.
NEF is Nikon’s raw photo format, preserving all sensor data so you can adjust exposure and white balance without quality loss.
NEF opens in Nikon NX Studio, Lightroom, Photoshop and most raw editors.
No. NEF stores the raw signal a Nikon sensor recorded at capture. A CR2 is a finished image with that data already baked in and discarded — there's nothing for a converter to reconstruct.
RAW formats like NEF give maximum editing latitude — but only when they come straight from the camera. Converting a CR2 to NEF 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 NEF) into DNG, but you still can't turn a regular CR2 into NEF or any real RAW.
CR2 converts cleanly to PNG, JPG, TIFF and WEBP — free, no sign-up, no watermark.