When importing Raw into A3, in what format is the picture displayed on the screen? Jpeg or Tiff ?
iMac, Mac OS X (10.6.7), Aperture 3
Previews for your images are Jpegs. You can adjust the size and level of compression of these at Preferences > Previews.
Thanks. So that means, when I view a Foto and want to adjust something, I see the "result foto" in a compressed form. Right?
Errr...yep.
But i wouldn't use the image you see onscreen as a guide to how the finished file will look. If your preview has low compression and your exported files have high compression, they will look quite different.
Also the on screen preview is scaled down in resolution....your camera might produce a large file (eg 4000 x 2500 pixels), but your screen might only display at 1280 x 960so again, you can't use teh onscreen preview as much of a guide.
Why do you ask?
Now iI am really confused. I am not talking about previews (= thumbnails) but about the image in fullscreen, that I make adjustment to. These adjustments are stored in a file to the Master which is RAW. My question : When I view the image in fullscreen and want to adjust it, do I look at a compressed format ( which obviously doesn't have all the data) or do I look at a full Tiff format?
None of the comments you have gotten are particularly useful. The display is independent of format of the file. It's rendering is of the full pixels in the image file that you have imported, modified by any adjustments you have made, or not if you ask to see the Master.
Even if your Master was imported as a JPEG, as seen on the screen it would have been decompressed, and you would see all the pixels (that the screen is capable of). However, a JPEG may have lost some detail in the compression, but when decompressed has the same number of pixels as the equivalent uncompressed photo format -- but some of them may result from interpolation, and not be the original.
Ernie
I think I'm getting close to understanding. If the Master is Jpeg - OK. But if the Master is still RAW, then to view the Photo it has to be converted. Is it converted to Jpeg or Tiff or something else? Given a good screen, I expect to see a "truer" Image in Tiff, because nothing is compressed/ decompressed and hence no Interpolation is needed that obscures/degrades the image. Right?
Forget format with regard to the display -- the pixels in the file are being displayed to the extent the monitor can support. A RAW file has pixels, and has to be decoded, yes. But there is not any compression to worry about at that point, and the image has not been saved into any format at that point, but is simply being rendered for your view.
Ernie
OK, and thanks , I learned.
TIFF and JPEG are file formats, for storing image data. Except for the preview, Aperture doesn't store a version as a file unless you export it. The question "is it JPEG or TIFF?" is meaningless. It is neither. It is an image on the screen. If you open a TIFF in an image viewer, you are not seeing TIFF data, you are see in an image rendered from the data stored in the TIFF file. If your Aperture master is raw, the data is de-mosaiced and rendered on the screen. There is no TIFF or JPEG involved.
"There is no TIFF or JPEG involved."
Well yes there is...if you have quick previews turned on, you'll be viewing the Preview image (a jpeg).
When importing Raw into A3, in what format is the picture displayed? Jpeg or tiff.
