Ysarex wrote:
I said it was a myth didn't I. I've seen the video. Trouble with that video is that it contains no evidence concerning the topic here. It primarily presents the difference between editing 8 versus 16 bit data and repeats the myth in passing but with not a shred of evidence -- like you.
The topic here is not the difference between 16 and 8 bit editing. The topic here is will converting an already 8 bit JPEG to 16 bit bestow upon that 8 bit data the benefits of 16 bit editing. And it won't. I've demonstrated that three times now (from you nothing). Let's do it again because you mention it might help in the lower tones. You're wrong. Here's a JPEG that has some lower tones to examine. Download the JPEG and show us you're not wrong, or stay wrong.
The JPEG was opened in PS, duplicated and converted to 16 bit. The same editing was applied to both files and they both show equivalent degradation resulting from the editing. Illustration below the JPEG is a side by side at 100% in some lower tones.
The two full-res images follow. JPEG edited first and 16 bit edited second.
So far no evidence from you at all and there was no evidence in the video you linked. Prove it.
I said it was a myth didn't I. I've seen the video... (
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Nothing gets through. You are simply unwilling or unable to understand the subject.
There are lots of people here that can actually think this through. It’s your loss.
selmslie wrote:
Nothing gets through. You are simply unwilling or unable to understand the subject.
There are lots of people here that can actually think this through. It’s your loss.
Still not a shred of evidence..... It's so simple, just prove it with real photographs.
Ysarex wrote:
Still not a shred of evidence..... It's so simple, just prove it with real photographs.
I have placed the evidence before you but there isn't a shred of comprehension on your part. I'm not going to waste my time trying to dumb it down to our level.
You are like a cow watching a passing train. It's just too late for you to learn something new.
CHG_CANON wrote:
Waste of time.
RAW from your D7500 is 12-bit or 14-bit with no colorspace limitations.
Any JPEG is 8-bit with all the rich color potential discarded from the sensor and the data packed into one of two colorspaces and limited to 2^8 color channels for Red, Green and Blue.
No version of JPEG any sort of equivalent of RAW.
Great answer best of the best , no need to go further , not an argument but a fact . Amen !!!
selmslie wrote:
I have placed the evidence
Not a shred of actual evidence. The question is will converting an 8 bit JPEG to 16 bit before editing mitigate the degradation that would otherwise occur editing the JPEG. You have shown no evidence of that. Why won't you show that evidence? Oh, I know! Because you can't. You remain proven wrong.
selmslie wrote:
None that
you can understand. It's over your head, above your pay grade, beyond your grasp of mathematics.
Converting an unedited JPEG to 16-bit TIFF provides benefits that are commonly recognized by people who understand the issues. It's not a myth. We are not making this up.
Since you won't take
my word for it see
https://www.theartofretouching.com/blog/8bit-16bit-32bit-bit-depth/ You will learn,
"Why use 16-Bit in Photoshop?
To Avoid Banding."None that b you /b can understand. It's over yo... (
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Between the 2 of you I sometimes lost track of who was saying what . Kind of like Abbott and Costello "Who's on First " . But I do tend to believe You Selmslie Why because for years now I have worked on clients image to make Large Gallery wrapped canvases From clients JPEGS until I convince them to use raw and give Me raw files only . I never did the Math if it works I keep doing it . I hate Math was never good at It , but I found from the start if I set My preferences in ACR to open all images @ 16 bit RgB 1998 and 300 DPI I had a better chance of printing a 24" x 36" acceptable Gallery wrapped canvas from a JPEG .. with no banding and functioned well in Nik ViVeza 2 to my adjustments to create a nice image better than a 8 bit file . I DID NOT know why and I did not care but I did take home a bigger pay check for being able to print a larger acceptable Canvas for My clients . They now think I am a miracle worker . Your article and video just proved why . You do the Math I will keep converting Jpegs to 16 bit before I work on them . I still only shoot RAW 14 bit since my 2nd week of of owning a Nikon D300 when they first came out and I bought a book called "Adobe Camera Raw ' read it from cover to cover ...Kudos to you Selmslie..Correction : I wasn't able to use 14 bit I think until My D7100 .
nikonbrain wrote:
... They now think I am a miracle worker . Your article and video just proved why . You do the Math I will keep converting Jpegs to 16 bit before I work on them . ...
The proof of the pudding is in the tasting. If it works you don't need to worry about the math.
But understanding what causes banding helps us avoid it.
selmslie wrote:
The proof of the pudding is in the tasting. If it works you don't need to worry about the math.
But understanding what causes banding helps us avoid it.
True It's The equivalent of Climbing a 10 foot ladder with 10 rungs , or a 10 foot ladder with 5 rungs I will always take the extra steps . I understood why and what I didn't need the math to believe I went by faith from those that had . Like yourself , a book about raw files and explanation of a sensor makeup . The more the steps the smoother the transitions same for banding same for tonal ranges . I never create JPEGS til i post them on the web And I label them" For web only "
I like your approach and will try it. What size memory card would you typically use?
Kleinburg Kid wrote:
I like your approach and will try it. What size memory card would you typically use?
To whom are you asking ? It is customary to quote the sender so we know who you are asking a response from.
Thanks, nikonbrain, for explaining the rules. I was asking larryepage what size memory card he typically uses for RAW+JPEG fine.
Kleinburg Kid wrote:
Thanks, nikonbrain, for explaining the rules. I was asking larryepage what size memory card he typically uses for RAW+JPEG fine.
My cameras each have two slots. I understand that the D7500 has only a single slot. I find that it balances just about perfectly to use a card twice as large for the raw 14 bit uncompressed files as for the JPEG fine/large files. I shoot essentially no video, though. If you do shoot video, you'll have to think about where you want those files to go, and you may want to make adjustments in card sizes. I also used to be really paranoid about using high capacity cards, but have gradually gotten over it, so now use cards as big as I feel are either necessary or convenient. Just remember that for the setup you describe, the raw files will take up about 2/3 of the space used, or that raw + JPEG will require about 3 times as much space as the JPEG files alone.
Also...I don't shoot bursts beyond that the camera's buffer can hold, so any impact of saving both formats on FPS or burst size doesn't bother me. Some other folks say it makes a difference to them. Just be aware that it might be something else to think about, depending on how you use your camera.
Thanks,Larryepage. I didn't think about the video memory, so that's a good point to consider!
I shoot RAW when I encounter amazing scenes. The times I've actually gotten back to them to edit, they always get saved as jpegs that don't look any better than the original jpegs on my jpeg card.
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