lens correction behaviour when shooting in cropped mode
The lens correction seems to not take into account the (actual) crop factor of the camera. The full frame cameras can shoot in the cropped DX mode and programs like Hugin recognize the change of the field of view. It may be a lack of indication but the lens correction module should produce identical results, when full frame camera model shoots in cropped mode or cropped camera model is manually selected.
The least thing that can be done, is to actually indicate if the given picture was taken in the cropped mode. Then, if applicable, the information can be used to properly adjust lens corrections.
#2 Updated by Pascal de Bruijn almost 6 years ago
- Target version set to Future
Considering this is a fairly obscure feature, only supported by a few pricey Nikons, so I'm not surprised we don't have this covered yet.
Apparently rawsamples.ch has some samples, and it seems Nikon stores it fairly nicely in EXIF:
RAW_NIKON_D800_14bit_1.2x-30x20_UNCOMPRESSED.NEF Exif.Photo.DigitalZoomRatio Rational 1 1.2
RAW_NIKON_D800_14bit_5x4-30x24_UNCOMPRESSED.NEF Exif.Photo.DigitalZoomRatio Rational 1 1.1
RAW_NIKON_D800_14bit_DX-24x16_UNCOMPRESSED.NEF Exif.Photo.DigitalZoomRatio Rational 1 1.5
RAW_NIKON_D800_14bit_FX_LOSSLESS.NEF Exif.Photo.DigitalZoomRatio Rational 1 1.0
#7 Updated by Malte Cornils over 5 years ago
Torstens suspicion is correct, all of Sony's A7 series cameras have the crop feature (and if I recall correctly, also Sony's A-Mount full format cameras). I can verify that lens correction is not available on pictures shot with my A7s with a lens supported on APS-C Sony E-mounts.
In addition, it is possible to use those lenses without crop, since some APS-C lenses have a fairly large (almost FF) image circle. However, this corner case is probably not as important to support as the crop mode (which I use almost all the time now, effectively disabling lens correction).
#8 Updated by Torsten Bronger over 5 years ago
For the time being, one can select a NEX-7 although one shoots with an A7. But a clean fix is more complex and will take a long time. So far, we just add fake camera models (like "Sony A7 (crop)" or "Lumix XY (16:9)", however, this doesn't work with autodetection and is ugly in general.