PSE 12

I've recently purchased PSE 12 and added the latest ACR - all works well.
My RAW files are DNG and I use a K5.
But - I'm not sure of the settings I should use in ACR.
1. Should I use 8bits/channel or 16bits/channel. The default when I use it is 8bits/channel. What are the advantages/disadvantages of each.
2. Camera Calibration is set at 2012 current. Alternatives are 2010 and 2003. I assume 2012 is correct.
3. Camera Profile is set as Embedded. The alternative is Adobe Standard - should I change to Adobe Standard.
4. Finally when I save as JPG I occasionally get an XMP file - any idea why? Shouldn't I get an XMP file for all or none???
Cheers..John

1. 8 bits

2. Current

3. Embedded

4. Mmm, I can't say for sure!

If you get a DFG and amalgamate it with a QCF, the J65 will combine with the 78K and produce a wonderful CX16J.

Thanks for that - seems the default settings were OK.

But still curious why when I save as JPG I occasionally get an XMP file. Why not every-time or not at all?

Can anyone explain this.

John

Did you save as a photoshop jpg as opposed to just a jpg or something?

Do you shoot PEF? If so you will get an.xmp file. With DNG you don't.

Mmm, not sure about that either, I shoot PEF and never get an XMP (sidecar) file!

Interesting. In the past, when I shot PEF I always got a sidecar file. When I switiched to DNG I no longer got them, so I assumed it was due to the PEF vs DNG.

Thinking about it some more though I always open a copy of the file from ACR into PSE, (by pressing alt and the open button) rather than the original. I also don't save the changes I make to the original any more. That would probably explain the lack of a sidecar.

Thanks for comments. To answer questions raised -
1. I shoot DNG.
2. I use ACR in PSE12.
3. When satisfied I open image in PSE12 for any further editing eg sharpening.
4. I then save as a JPG from PSE12.
5. And then once in a while I get an XMP file. It must be something I do in the process but as far as I'm aware I follow the same procedure with every photo.
6. A couple of years ago I did shoot in PEF and always got an XMP fie.
7. I assume there is no advantage with PEF over DNG - or the other way round. The reason I changed to DNG was that I was using PSE7 and K5 PEF files weren't recognised by the version of ACR that was then available!

Cheer...John