lwerthe1mer wrote:
I am not sure I know what "Raw Processing" is. It sounds like the term encompasses more that editing RAW photos in Lightroom.
I like Lightroom and just want to know enough about Photoshop to be able to transfer photos from Lightroom to Photoshop (I know how to do this.) so I can use "layers" and some of the other aspects of Photoshop that Lightroom doesn't do as well.
My current need from Photoshop appear to me to be very minimal. A book on RAW processing perhaps goes in a direction I'm not prepared for.
I am not sure I know what "Raw Processing&quo... (
show quote)
Digital cameras generally can save two types of files: raw data files and processed JPEGs. Saved-in-camera JPEGs are processed from the raw files.
Raw files contain at least three components:
The raw image data
A small, highly compressed JPEG (used to display the image on the camera's LCD and in some computer operating systems)
The EXIF file data about the JPEG
When you open a raw file on your computer, using your camera manufacturer's supplied software (Digital Photo Professional for Canon, Nikon's (I forget), or SilkyPix Developer Studio for Panasonic, etc), the software defaults to processing the raw file using the EXIF data parameters that were used to save the JPEG preview, or a full size JPEG, in the camera. The image will follow your camera menu settings.
When you open a raw file in Lightroom and some other software packages, that package applies its own processing defaults, which look considerably different from, and often not as good as camera JPEGs, if you haven't changed the defaults!
Raw processing on a computer simply develops an image using controls YOU apply, to taste.
To process raw files correctly, YOU MUST CALIBRATE AND PROFILE YOUR MONITOR USING A HARDWARE DEVICE AND SOFTWARE. The device can be a colorimeter or spectrophotometer. If you buy a DataColor Spyder5Pro or X-RITE i1DisplayPro, it will come with the device and software. Read and follow all directions *very* carefully.
Once your monitor is calibrated and profiled, you must configure your post-processing software's color management settings to include a "working space" profile such as ProPhoto RGB or Adobe RGB, the monitor profile you just created, and the output profile (sRGB for the Internet and photo labs, possibly Adobe RGB for process color printing on a press, or possibly a paper profile from your lab, or for use on your inkjet printer.
If your test prints don't match your monitor very closely, stop and figure out why, before adjusting images and wasting money! The issue is usually with the calibration setup, room brightness, double profiling, profile mis-match, or failure to configure something.
Once you trust that your prints will match your monitor, you can tweak the sliders in your software until you like what you see on screen... then order or make prints, or make JPEGs in sRGB color space for the Internet sharing sites you love so much (Facetwit, Twitbook, InstantCram, flikit, etc.).
Lightroom, Photoshop, Affinity Photo, DPP, SilkyPix, Capture One Pro, etc. all process raw files into image files. They can do a straight conversion, but the point of using raw capture is to work as if you had a digital negative, not a slide or transparency. There is much more range for adjustment in raw files than there is in JPEG files.
If you save JPEGs straight-out-of-the-camera, you must do PRE-processing. That means setting all processing parameters in the camera menus, and getting the exposure and white balance PERFECT. It can be done for some jobs, but... in a run and gun circumstance, recording raw files will allow a wide margin for exposure and white balance error, and will allow you to extract details that the camera would trash on its way to making a JPEG.
So raw image post-processing is a LOT like printing color or black-and-white negatives in a darkroom. It gives you finer control.