Photo quality of jpegs settings
I have been using digital photos, mostly scans from prints, for 15 years or more for publications. I almost always use TIFF file format as a high quality, large-file size image.
I am familiar with jpegs (and have read all the RAW discussions). When I open a fine quality jpeg in Photoshop and go to save as, it reads as a level 5 jpeg. I have assumed that on a scale from 0 to 12, a 5 is below average, yet Nikon says it is fine.
Am I correct that the fine setting produces a 5-quality jpeg?
What quality is produced using the other jpeg settings?
What is the advantage to shooting RAW and jpeg?
I have several 1-gig memory cards, so file size is not really an issue.
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#1. "RE: Photo quality of jpegs settings" | In response to Reply # 0
Shred Registered since 28th Oct 2005Sun 27-Nov-05 12:10 PM
I dont think that any camera produces JPEG that are in certain scale of Photoshop, i might be wrong though.
D50 jpeg quality is very good as it is in most of the cameras in this class,
it is hard to find differences between RAW and JPEG if the exposure, WB etc.. are correct,
RAW shows advantages only when doing very large prints or when doing serious post processing.
I shoot mainly RAW as i dont want to be binded by the color profiles or WB.
#2. "RE: Photo quality of jpegs settings" | In response to Reply # 0
Drewhound Registered since 01st Mar 2007Sun 27-Nov-05 12:24 PM
Always save a jpg at level 12 unless you some particular reason for having a smaller file (eg email). Having said that saving a jpg will degrade the image so save as a tiff which won't. If your programme has a proprietry format, such as psd in photoshop, use that. Opening and closing a jpg has no effect on the quality.
In the Raw plus JPG setting the jpg is a small fairly poor quality image,it's only really useful to look at and check how good the image is without opening the Raw file. I don't bother. I've found Raw to be better in every way, I'd urge anyone to at least try them.
#3. "RE: Photo quality of jpegs settings" | In response to Reply # 0
dwig Registered since 30th May 2004Sun 27-Nov-05 01:07 PM
>Am I correct that the fine setting produces a 5-quality
Don't know for sure. My PS/CS default to the last used Q setting for JPEG when doing a "Save as...". I seem to remember Nikon saying that their "JPEG Fine" was a 1:4 compression on my old CP950 and my newer CP8400. That, as I understand it, is PS's "10". The new Nikon "JPEG Xtra", present in my CP8400, is billed as being a 1:2 compression which is PS/CS's "12".
>What is the advantage to shooting RAW and jpeg?
Many and few, depending on how much post-processing work you are willing and capable of doing. For the most info, lurk on the Postprocessing forum, but basically:
ALL digital cameras shoot in ONLY RAW, period. That's the nature of the beast. All that save in non-RAW formats convert the RAW to the save format using the various ISO, Color Balance, Contrast, Color Saturation, ..., settings in the camera. These settings exist in all cameras though some are not exposed to the user for alteration. When you set the save format to RAW, The camera writes the RAW data to a file with the camera settings attached as a note; the camera settings are not processed. You can then open the RAW in an app like PP or CS and apply your own corrections to the RAW during the conversion. The RAW importer will first apply the camera settings as a default but you get the change to alter all or some, depending on the app, before OKing the conversion. In addition to this control, you avoid using the lossy compressions of JPEG and get a save file that is generally smaller than the rather bulk TIFF format that had formerly been the popular choice for bypassing JPEGs compression artifacts.
nikonian in paradise
use: cp8400, cp990, cp950
retired: F,ELW, 21mm, 45 f/2.8 GN
used to own: S2, SP, F2, F3, 20mm f/3.5, 35mm f/1.4, 35mm f/2.8, 43-86 f/3.5, 50mm f/2, 50 f/1.4 (for S2/SP), 55mm f/3.5 Micro, 105mm f/2.5, 105mm f/4 Micro, 300mm f/4.5, 180mm f/4.5 (for 4x5)