Alley in Pisa, Italy

by Lars Kotthoff

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98 reputation
7
bio website launchpad.net/~raof
location Hobart, Australia
age 32
visits member for 4 years
seen Jun 11 at 4:33

Aug
19
awarded  Benefactor
Aug
19
awarded  Scholar
Aug
19
accepted Is the format for the distortion and chromatic aberration correction of µ4/3 lenses documented?
Aug
15
comment Is the format for the distortion and chromatic aberration correction of µ4/3 lenses documented?
I had a look at the open Adobe DNG format, and that contains a bunch of tags for these kinds of off-camera correction. Sadly, running a ORF through Adobe's DNG converter doesn't populate these fields, or I'd be done! As for Adobe's Lens Profile Creator, that might be interesting as a more friendly (and widely used) calibrator + online repository of lens profiles, but the lensfun library already has a database of lens profiles generated using Hugin. My goal is to make the profile creation unnecessary for µ4/3s lenses, since they've got it built in (somewhere!).
Aug
14
revised Is the format for the distortion and chromatic aberration correction of µ4/3 lenses documented?
exif is not necessarily used for RAW
Aug
14
comment Is the format for the distortion and chromatic aberration correction of µ4/3 lenses documented?
Right - those correction factors (+ the specific algorithm used) are what I'm looking for!
Aug
13
awarded  Student
Aug
13
awarded  Promoter
Aug
11
awarded  Editor
Aug
11
revised Is the format for the distortion and chromatic aberration correction of µ4/3 lenses documented?
Made clear that we're after a transformation on the RAW file.
Aug
10
comment Is the format for the distortion and chromatic aberration correction of µ4/3 lenses documented?
dpreview.com/articles/distortion/page2.asp gives some details. It seems that Adobe Camera Raw also picks up this information in the raw files.
Aug
9
awarded  Teacher
Aug
9
comment Is the format for the distortion and chromatic aberration correction of µ4/3 lenses documented?
I guess that's possible; it seems a stupid way to do it, though. Particularly since my Panasonic lens gets corrections applied on my Olympus E-PL1 body (and I believe the reverse is true - Olympus lenses get corrected on Panasonic bodies). It would require both a software and firmware upgrade each time a new µ4/3 lens was released by anyone.
Aug
9
answered Best way to import and save when shooting in both RAW and JPEG?
Aug
9
asked Is the format for the distortion and chromatic aberration correction of µ4/3 lenses documented?
Jul
15
comment What are the pros and cons when shooting in RAW vs JPEG?
This. I've found that almost all the time the jpeg output is perfectly fine, but every now and then I'll take photos where I want the extra options of RAW. Shooting RAW+jpeg means I don't spend unnecessary time in the common case, but I can still post-facto select images I want to process more.
Jul
15
awarded  Supporter