@john.topazlabs…
On taking a further look, I seem to have figured out a common parameter distinguishing those files that the current TPAI cannot open, from those that it can.
My camera is a Nikon D3200, c. 2012-2013. I have the one modern “kit lens” that came with it, and a few very old lenses, from the late 1960s to early 1970s. I usually use the modern lens, but on occasion, I use the very old lenses.
For the very old lenses, I have to put the camera in manual mode. Of course, these old lenses, not having any electronics in them, do not report anything back to the camera regarding their own parameters or settings. The EXIF data for pictures taken with these lenses, unless I edit these data otherwise, contain bogus values for parameters related to these parameters and settings; for example, reporting the aperture as ƒ/0.0 or the focal length as 0.0 millimeters.
It appears to be the case that the current version of TPAI produces this error when I try to open a .NEF file that was taken using one of my old lenses.
The only difference between a .NEF file taken with one of these old lenses, from one taken with the modern lens, as far as I know, should be that the EXIF data pertaining to the lens itself would not contain valid information.
The attached .ZIP file contain three .NEFs.
- DSC_1711.NEF was taken with the modern lens, in automatic mode.
- DSC_1712.NEF in manual mode was taken with the modern lens.
- DSC_1713.NEF was taken in manual mode using my 1972-vintage NIKKOR-S Auto ƒ/1.4 50mm lens. It is this lens that I used, a few nights ago, to take pictures of the comet; and the .NEF files generated thereby, that I found that TPAI could not open
I don’t use the old lenses very often, so I don’t know how long this issue has been present.
I did look at a directory from earlier this year, containing pictures taken with a different old lens, and found that the current TPAI cannot open those, either.
File file Helicopter.zip contains a .NEF file DSC_9569.NEF taken in March of this year, using my Vivitar ƒ/3.8 85-205 millimeter zoom lens, made in the late 1960s or early 1970s. Whatever version of TPAI I was using then, was able to process it just fine, but the current version cannot, and gives the same error I get when I try to process my comet pictures from a few evenings ago.
TopazPhotoAIError_20241015.zip (56.2 MB)
Helicopter.zip (20.7 MB)