Subject | Re: Lenses and sharpening |
From | Eric Stevens |
Date | 09/20/2014 06:59 (09/20/2014 16:59) |
Message-ID | <bb2q1a1upk1h9uadurrn9bdoll1vu99ch3@4ax.com> |
Client | |
Newsgroups | rec.photo.digital |
Follows | nospam |
Followups | Sandman (6h & 1m) > Eric Stevens |
nospamI know that, but Sandman seems to disagree. That's why I asked him that particular question. --
In article <s0qp1adosbs2srb293smuem1f5cnml763b@4ax.com>, Eric Stevens <eric.stevens@sum.co.nz>wrote:nospamSandmanEric Stevens
It could be, sure. It's an ordinary JPG, and most printer drivers can handle them just fine. Again, you don't know what you're talking about.
I would send my best file to the printer, not a highly reduced JPG.
why would you be sending a highly reduced jpeg?nospamEric StevensSandmanSandmanEric Stevens
The *only* point Lightroom loads the original file and applies the rendering chain in RAM is when you're viewing an image in 100% zoom.
Or when you export the image.
Depends on how you export it. If you export it as a low-res highly compressed JPG, it can use the preview file. Chances are that it doesn't, but it certainly could, since the preview file *is* the current pixel data of the image.
So what happens when you want a high quality TIFF of the same size as the original file? Do you expand by resampling your low-res highly compressed JPG?
questions like this mean you don't understand how it works.
it *always* uses the original data. the cached previews are a speed optimization for the user interface.