On 4/27/2018 16:32, Igor PDML-StR wrote:
Now, as far as I understand, "traditional" TIFF viewers would not be able to
show any RAW formats: you'd need some sort of additional "decoder"/converter
from the RAW format to the bitmap-based format.
I've never carefully looked at the TIFF files used by *ist-D and *ist-DS, but I
suspect that was a "traditional" TIFF format, that can be easily seen in any
TIFF viewer. So, I don't think that was a true "RAW" file.
If you chose that format as output, - you were not storing RAW image, similarly
to how it is not stored when you store JPEG-only.
*ist-D PEF files had to be opened with Pentax's included image software and
exported as TIFF files for Photoshop 7. The TIFF files could be opened directly.
With the *ist-D you could also choose how many pixels it recorded in the TIFF or
JPEG files - L 3008x2008; M 2400x1600; S 1536x1024. This affected the size of
the TIFF file.
File sizes were a big deal because I started out with a single 512MB Compact
Flash card. It was 3 months before I could afford a second card and 6 months
before I got my first 1GB card.
An *ist-D PEF file was around 13MB; high quality 2400x1600 JPEGS were about
1.5MB; 1536x1024 TIFF files were around 4.5MB; 2400x1600 TIFFs were about 11MB
and full size 3008x2008 TIFFs were 17MB or more.
Looking back, I find I shot a lot more JPEGS than I remembered and more smaller
TIFF files.
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