Originally posted by Quension
It's in the
MakerNotes section, tag 0x0205 is the CameraSettings byte array; check bit 6 of CameraSettings[7] to see if it's in AEB mode, then look at CameraSettings[9] for the sequence numbers. The top 4 bits is this image number (0 = first), bottom 4 is the total number in the set.
interesting, i will have a look, although, if i understand correctly, i was aware of that. what i would really need would be a tag "this is image id "2345", all these 5 images are one bracketed image, with the same id", this means i would not have to manually select the images which make up one "hdr", this would make all the difference. am i making any sense? . it should be possible, though, to cheat and "group" consecutive images which consecutive image numbers, and break the group when either the aeb tag goes away, or the sequence number is reset. hmmm, talking about it gives one ideas. thanks
Quote: "Magical" in the sense that it doesn't exist within the camera, not in general.
OpenEXR is not designed to hold CFA data, is it? Without that (and associated metadata) it's not a RAW format, and you might as well simply combine the bracketed RAW images on the computer as people already do; having the camera do it doesn't seem like much of an advantage. People complain about the lack of a single HDR image now, and lack of control over demosaicing, noise reduction etc will just be the next complaints on the list.
that is a good point, it would mean taking demosaicing and all the other "raw fun" away from the users computer, and there would be complaints. i am leaning more and more towards helping making the postprocessing (upto and including creating the hdr, as in exr, file) as easy as possible. the tonemapping part will always be voodoo, and i understand hdr fans love that (i wouldn't know, i simply hate it ).
Quote: The source material is image data for a scene covering a large dynamic range: it most definitely qualifies as HDRI. Being contained and processed in slices instead of a single large blob is irrelevant, as HDRI has never been a definition of the individual processing steps.
You can certainly argue that the output is not HDR, which is of course technically correct, but as far as marketing and feature naming go that isn't terribly relevant either. The output is the result of an HDRI process, and in the common lexicon an "HDR image" is the LDR result of that process, despite being rather inaccurate. It's kind of like the "100% crop" shortcut...
it's true, it's mostly terminology, come to think of it, it's just that i see no resemblance between exposure blending (what i usually do) and hdr + tonemapping, the difference is oranges to rocks to me. most people will not identify my pictures with hdr, and hdr fans would never be happy with the "boring" look of my process (enfuse, may those guys be blessed ). hdri is associated almost inseparably with tonemapping these days, if it's wrong or right is irrelevant, it's, i think, just the way it is. i guess this is the more correct way of stating my point (your explanations above are, as i said, very reasonable)
john: we are all friends here (with pentax too ), we are not beating on this new feature, we are actually proud pentax came up with it first, and that it is getting attention, and we are merely brainstorming over what could be done to make it even better, cheaply and without too much trouble (just some "easy" firmware tricks), in the hope of being helpful, and in the hope "somebody might be listening" (nice to see that you are, btw). you will see a lot of this here, sometimes it sounds like "argggh, they did it wrong, crap", but usually it is accompanied by a lot of effort to figure out how it could be done better, sometimes realistically, sometimes naively, but it's there if you read through the "moaning" . honestly, i think this is great, and shows you have a very dedicated community, trying to work with their vendor; i would be proud . if you looked at the "dear pentax thread" (i bet you have), you will see a lot of cases where users are actually wishing for features which are not a big deal, but would make a difference, sometimes also because they believe it would matter if pentax was first, you can see stuff there from "classic strap lugs" (we got it on the k-7, not sure if somebody was listening, or it was coincidence) to "voodoo" stuff like "oss firmware" (by yours truly, but others too ).
shortly, don't get it wrong, nobody here is bashing the new feature, it's just that you have very critical users, and, fortunately, constructively so, for the most part. better get used to it
kunzite: very good idea, and should be trivial to add to the firmware. this will mean you can use the hdr feature which is already there, the same way i (and i think many others) am using the jpg functions: i shoot raw, but i tweak the jpeg settings to see a preview as close to what i will get as i can, this helps a lot (especially that it also works with monochrome, for instance). for hdr it would be brilliant, i am sure that would shut them up, you have to love having reasonable preview for hdr
edit: i _hate_ smileys, please insert imaginary smiley where you think appropriate. thank you