How to convert 3FR to PGM
- Add your .3FR file - drop it in the box above or click to browse.
- Convert it to .PGM in a few seconds.
- Download your new .PGM file.
What to expect
- Color is removed completely; the RAW is reduced to grayscale luminance.
- PGM is uncompressed, so no compression artifacts are introduced, but files are large.
- PGM holds only a small header plus pixel values, so Exif and other metadata are not preserved.
Frequently asked questions
Will the PGM keep the colors of the 3FR photo?
No. PGM (Portable Graymap) is a grayscale-only format, so all color from the Hasselblad RAW is discarded and you get a single-channel luminance image.
Why convert a 3FR to PGM?
PGM is a plain, fully documented, uncompressed grayscale format from the Netpbm family. It's useful when an image-processing or scientific pipeline needs raw pixel values without color or compression getting in the way.
What can open a PGM file?
PGM is an open Netpbm standard read by GIMP, IrfanView, XnView and the Netpbm tools. To share it as a normal photo, convert to PNG or JPG instead.
Is there any quality loss?
PGM stores pixels uncompressed, so there is no compression loss, but the conversion is still destructive in that color is removed entirely and cannot be recovered from the grayscale result.
