Linked by Thom Holwerda on Tue 19th Feb 2008 23:57 UTC, submitted by Jeff Moore
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About png <-> jpg. It really depends on what you want to do with your pictures. If you want to display them on the computer/online, I'd always go with jpg. It's way more convenient. If I need to transport it for printing, I'd use tiff, because I'm more confident that the different printing services can deal with it. And using LZW(?) compression they are smaller than png files as well.
With respect to sharpening on RAW files. I don't remember the details, but I there were several threads about this on the dpreview forums. On the higher model DSLRs (your 1D is definitely one of them
you can turn it off. It might have been Sony where you couldn't. But as I said this is just hazzy memory.





Member since:
2006-12-16
I'll deal with each of your comments one by one.
Yes, I should clarify, by default, jpeg settings "in camera" generally have high a high degree of sharpening by default, and with a lot of digital cameras, it's not possible to reduce that sharpening.
I stand by my comment that PNG is a better file format than JPEG - for the simple reason that any photographer who is really worried about image quality will not sacrifice it due to file size. Of course, old habits die hard...
As to RAW files, I believe it was Nikon that was not really producing real RAW files. As far as I'm aware, a Canon RAW file is RAW data. True, most modern Canon DSLRs have the picture styles, and standard/natural both have sharpening added to the RAW file. Canon allows you to change the picture style to something like neutral, which does not have any adjustments to sharpening or contrast. I shoot neutral on my 1D Mark IIn for this very reason. Hue/saturation is also defaulted to "neutral" as well. Canon isn't exactly super clear on the subtle differences between standard/natural and neutral, but if you bother to do a bit of reading of the online help of DPP, you can easily find the answers. The problem is, most people are lazy and don't like doing research.
Dave