RAW Image

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This image is already converted from raw and does not require dealing with camera Raw conversions, it is worth mentioning what to do with Raw images and why you might want to consider Raw processing if it is an option,

Raw images are images in their natural capture state – direct off the camera’s sensor without any automated in- camera processing. JPEG files, on the other hand, which are often the default means of storage for images on camera, are images that have been processed in- camera, converted from the Raw state into a more globally recognized image file format. One advantage of working with Raw images is that you get to control the image conversion from raw data rather that allowing the camera to use some generic processing that works optimally only in run-of-the- mill situations. When it comes to images that are exposure extremes (over-and-underexposure), in-camera processing is not an advantage. Another advantage is that Raw images are high-bit images, taking advantage of the native capacity of a sensor to register many times the information allowed in the JPEG file format. JPEG files are limited to 8 bits (a mere 16.7 million color per pixel). Raw images can be upto 16bits per channel (35.2 trillion colors). Raw images offer both more control in the conversion from the raw information and a higher bit count than a standard JPEG, which is especially beneficial in processing exposure extremes.

If you shoot in raw format as a deliberate choice. You add a step to your processing, but you also add some extraordinary leeway with shots that are not exposed optimally because of the higher bit count. When opening Raw images, you are led to the intermediate Adobe camera Raw dialog automatically, where you can make a conversion for the image. There are a lot of controls, and with that goes many opportunities  for positive change – as well as negative change. Some users see this as an opportunity, and some as an obligation. My suggestion  Is not to feel too temped to make changes in the raw dialog unless you are positive you can make an advantageous change. If the image is a normal exposure and doesn’t have a decided skew or you are not compelled to attempt to rescue highlights or shadows, accept the defaults and go to work in photoshop, in which you have the full range of tools and layers to lean on just be sure to import 16-bit images. Keep in mind that you do not have to do making changes only when you know theimages has exposure issues.

When you decided to make changes and corrections in the raw dialog, consider the histogram display and use it to help keep you from creating bad adjustments. Although you may trust your screen to a great extent, the graph helps you see if you are making corrections that are too extreme and actually doing some damage to your image by losing image information. If you see the graph bunching up and spiking at the right or left in the graph display in thread dialog histogram, chances are the image is taking a hit and you are ruining image details, perhaps unwittingly. Likewise, if the graph is pulling away from the right or left or forming distinct tails, you may not be making the most of the information you captured. Use these histogram dynamics to help you making intelligent imaging choices.

At the other extreme, don’t simply adopt a hands-off attitude when it comes to raw conversions. Automated adjustments selected by photoshop’s camera raw dialog don’t always make the best choises – they can’t see the image. So don’t just trust the raw plug-in to make the choice for you, especially if the preview on screen seems wanting. Play with the possibilities and be careful not to blow out details by being conscious of the histograms provided on the preview. When in doubt, leave the image a little under – or overexposed to save detail so that you can work with it later rather than trying to optimize it all at once in the raw dialog you can still fiddle with making changes later there are actually better tools in photoshop to use when making corrections. Think of the dialog as a helper rather than an all-in-one correction tool – just like anything else.

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