Option to display AF focus points when possible
Seeing the AF focus point on my new canon 5d2 screen, I looked at the exif to see if it's possible to draw it. I searched also on internet and found this proof of concept:
which suggests that it's at least doable for canon cameras :)
#1 Updated by Simon Spannagel almost 8 years ago
- % Done changed from 0 to 20
- Target version set to Candidate for next minor release
- Status changed from New to Triaged
- Category set to Darkroom
Outcome of an IRC discussion on this:
- it's not a "no-go" feature, so if coded it might find it's way into darktable
- there is no urgent need for this from any developer, so nobody is willing to take on it now
maybe you want to give it a try? Exiv2 seems to be able to read the focus points at least from some Canon RAWs.
If you need some help to get started, you might want to read the Contributing_Code wiki page and ask for further advices in IRC.
Setting status to triaged, priority stays low.
#6 Updated by Moritz Augsburger over 5 years ago
Here is some more information on the topic, eg where exactly to find the data:
It looks like Canon gives direct coordinates, Nikon needs some mappings inside the code, for the other brands I didn't look it up.
#8 Updated by Roman Lebedev about 3 years ago
- bitness set to 64-bit
- System set to all
- Affected Version set to git master branch
Nikolai Försterling wrote:
like #8438, i feel this being solved for a while, try pressing strg+z in lighttable module
Yes and no. Even though ctrl+z exists, and shows interesting stuff, these issues are asking about more 'dumber', way less interesting stuff - actually displaying in-camera focus points. Since focus-and-recompose, or even manual focusing is widely used technique, i'm not really sure what is the point of this, especially since the actual focus detection exists in dt...
One use case where this would have been nice:
I have just purchased a new lens and am evaluating a few test shots. It would have been nice to see the autofocus point the camera/I picked, and confirm that the lens indeed focused correctly and isn't back/front focusing (it's a Sigma...;-)