Camera Raw Files

6 replies [Last post]
Dicky B
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Joined: Feb 23 2004

Hi looking for some advice,
I dabbled at the weeekend taking some pix with my Canon EOS300D with the camera set to save as RAW files.
Photoshop can open them (allbeit slowly) and they can be edited but theres no option to resave them as RAW.
To keep the maximum resolution/quality obviously they should not be saved as JPEGS so TIFF would be the only sensible option, or is there a plugin for Photoshop that I have missed?
Cheers,
Rick.

harlequin
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Joined: Aug 16 2000

psd from photoshop or tiff.
psd is best for editing them in.

raw would not be a good save format , it differentiates the master version from any clones/edits.

Gary MacKenzie

sepulce@hotmail.com ( an account only used for forum messages )

Thinkserver TS140 , 750ti Graphics card  & LG 27" uws led backlight , Edius 8

Humax Foxsat HD Pvr / Humax Fox T2 dvbt

Dicky B
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Joined: Feb 23 2004

Thanks for that Gary,
Would I be correct in assuming that Tiffs if opened and worked on then saved do not lose anything (quality wise)?
I usually save as tiffs (through photoshop)but the files are usually quite large compared with JPEGS.

Alan Roberts
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Joined: May 3 1999

TIF can be totally lossless. It uses several different compressors, but the usual one is LZW, that same algorithm that ZIP uses.

Get my test cards document, and cards for 625, 525, 720 and 1080. Thanks to Gavin Gration for hosting them.
Camera settings documents are held by Daniel Browning and at the EBU
My book, 'Circles of Confusion' is available here.
Also EBU Tech.3335 tells how to test cameras, and R.118 tells how to use the results.

harlequin
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Joined: Aug 16 2000

tiffs certainly don't lose to the degree that jpegs do.

so , if it works for you , stick to it.

i was always told by our multimedia-graphics guy that use psd where possible , that way it was native photoshop and required less manipulation.

Gary MacKenzie

sepulce@hotmail.com ( an account only used for forum messages )

Thinkserver TS140 , 750ti Graphics card  & LG 27" uws led backlight , Edius 8

Humax Foxsat HD Pvr / Humax Fox T2 dvbt

Alan Roberts
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Joined: May 3 1999

If you're using Photoshop, it makes sense to stick with psd. That compresses with LZW as well, so no loss. It also preserves all the layers you might hava added, and compreswses each layer with LZW (IIRC). But if there are no added layers, and you want to see mthe pictures in other software, then tif is a very good way to do it.

The LZW compression algorithm is totally lossless, it's the way ZIP files are compressed. If it's good enough for software, it's good enough for pictures.

Get my test cards document, and cards for 625, 525, 720 and 1080. Thanks to Gavin Gration for hosting them.
Camera settings documents are held by Daniel Browning and at the EBU
My book, 'Circles of Confusion' is available here.
Also EBU Tech.3335 tells how to test cameras, and R.118 tells how to use the results.

Dicky B
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Joined: Feb 23 2004

Thanks Gary & Alan,
Will stick to saving as native format or RAW > Tiff. I think Premier Pro can import them for inclusion in video
allbeit with cropping required.
Thanks,
Rick