Hi,
For me it is also new, but got dual iso tool working. Please use next guide for general setup:
Also install XCode and command line tools:
Xcode menu > Preferences > Downloads > choose "Command line tools" > Click "Install" button
Then ML stuff using next guide:
http://magiclantern.wikia.com/wiki/Magic_Lantern_Development_on_MacThen you also need to download dcraw and exiftool:
http://www.sno.phy.queensu.ca/~phil/exiftool/http://lightzoneproject.org/content/mac-version-new-dcraw-availableThen download sources from Bitbucket, I use Andy's.
Goto dual iso dir and type
make. It will give the cr2hdr tool.
If you only need cr2hdr and don't want arm tooling (it is complaining about arm then), you can remove dual_iso.c. Make will give some error, but the cr2hdr will be created anyway and works :-)
root# cr2hdr IMG_0155.CR2
Input file : IMG_0155.CR2
Full size : 4832 x 3228
Active area : 4770 x 3177
White level : 13327
Black borders : 62 left, 51 top
Black level : 995
ISO pattern : dBBd GBRG
Estimating ISO difference...
ISO difference : 4.03 EV (1628)
Black delta : 2.30
Interpolation : mean23-chroma5x5-contrast
Matching brightness...
Looking for hot pixels...
Hot pixels : 18316
Full-res reconstruction...
Alias filtering...
Dark chroma filtering...
Building contrast map...
Dilating contrast map...
Smoothing contrast map...
ISO overlap : 5.0 EV (approx)
Black adjust : 1
Output file : IMG_0155.DNG
1 image files updated
Cheers
Jorgen