greetings luminous landscape,
for years i've been saving and working on my photoshop files in the .psd format... recently i've not been able to open in ACR (5.5) .psd files that i've converted to tiff files in photoshop. generally i initiate my work flow in ACR with nef files and save them to .psd However, i've now learned that the tiff format is superior - see the qoute below from down thread.
i'm not knowledgeable enough to know exactly what settings to apply when saving my many thousands of psd files (many are large pano's from photoshop 6 to CS4) into a tif file in order to utilizes the great editing powers of ACR
When i convert a .psd file in photoshop CS4 a box comes up and prompts:
none
lzw
zip
pixel order
interleaved (RGBRGB)
Per Channel (RRGGBB)
byte order
IMB PC
Macintosh
Layer compression
RLE
ZIP
Discard layers and save a copy
i know that my ACR opens tif's since i've just saved from ACR a nef file in the tif format and it reopened in ACR when clicked in the bridge browser.
apparently even after converting my .psd files to tif they are somehow not recognized as a tif that ACR will open!
can anyone explain the steps (correct boxes to check) necessary to convert a .psd into a tif that ACR will regonize?
thanks for any help and excellent forum.
tws
cheers
"...PSD is now a bastardized file format that is NOT a good idea to use. Even the Photoshop engineers will tell you that PSD is no longer the Photoshop "native" file format. It has no advantages and many disadvantages over TIFF.
TIFF is publicly documented, PSD is not. That makes TIFF a preferred file format for the long term conservation of digital files.
TIFF uses ZIP compression for max compression, PSD uses RLE which if you save without the Max compatibility will be a bit smaller, but at the risk of not being able to be used by apps, like Lightroom.
TIFF can save EVERYTHING a PSD can save including layers, paths, channels, transparency, annotations and can go up to 4 GIGS in file size. TIFF can save all the color spaces PSD can. The ONLY thing I can think of that PSD can save that currently TIFF can't save is if you Save out of Camera Raw a cropped PSD, you can uncrop the PSD in Photoshop CS, CS2 or 3. That's one tiny obscure thing that PSD can do that TIFF currently doesn't. How many people even knew that let alone use it?
PSD used to be the preferred file format back before Adobe bastardized it for the Creative Suite. The moment that happened, PSD ceased to be a Photoshop "native" file format. PSB is the new Photoshop "native" file format for images beyond 30,000 pixels. And , at the moment, only Photoshop can open a PSB..."