Image Compressions

Anyone know what Adobe Deflate compression is? I just noticed it on my EXIFs. I transfer my raw files from lightroom to CS3. The setting for the transfer are 8bit - TIFF - ZIP - sRGB. It was JPEG before I changed the settings. I tried googling it but came up with some wierd explanations that I couldn;t understand.

It has th do with the fact that you are zipping and unzipping. Zipping an image is a waste of time. JPG's don't compress. I would turn it off. If there is an option for LZH TIFF then you could save a bit of space. Still, not worth even the minor effort, imo.

hsma,

I'm not sure I understand what you are doing. As I have read your workflow, you are shooting in JPEG, then converting to RAW before finally going to an 8 bit TIFF?

If so, why not shoot in RAW and save it as a 16 bit TIFF file when you exit DPP or LR? The quality would be much better and there would be little or no compression losses.

no im shooting raw

[QUOTE=hsma;6117621]An​yone know what Adobe Deflate compression is?QUOTE]

Looks like it's ZIP: Click (Hope this link works, if not, here is the pdf.)