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Posts tagged post processing

Why do I shoot RAW?

Here’s a recent quote from Ken Rockwell’s blog:

The Canon 5D Mark II’s in-camera JPG processing is awful if you’re making huge prints. The in-camera processing of the raw data oversharpens harsh edges, adds too much contrast and smudges subtle textures into mush.

For the Canon 5D Mark II, if you’re making huge enlargements, shooting CR2 files and processing them with Adobe Lightroom 2.2 makes a world of improvement over in-camera processing. Shooting CR2 files in the 5D Mark II and processing them in Lightroom 2.2 makes files almost indistinguishable from the JPGs that come directly out of the Nikon D3X.

I find this quite amusing as Ken is infamous for bashing anyone who shoots RAW as a hack. Read his article on RAW vs. JPEG to see what I mean. If you can get beyond all of his opinions there is some pretty useful information in there.

Personally, I pretty much agreed with Ken and shot JPEG exclusively up until last year. I switched to shooting RAW with my Pentax K10D and post processing with Adobe Lightroom when I discovered how much better the RAW images looked coming out of Lightroom as JPEGs than they ever did coming out of the camera. The thing that makes it work for me is that I know the camera so well that I can picture what post processing adjustments I am going to need to do to an image as I’m peering through the viewfinder… much the same way a good film photographer considers how they will later develop and print an image in the darkroom.

I have lens specific import presets for my K10D’s RAW files that automatically apply my preferred adjustments during import (Sharpening, Detail, Clarity, Vibrance, Noise Reduction, Defringing, etc.). I shoot in auto white balance mode so all the post processing I have to do is make any required adjustments to the WB where the camera missed (which happens more often than not. Often, I can do this quite simply with a large number of images shot in the same light with less than 3 clicks (click on the first image, shift-click on the last, click on the WB pull-down tab, scroll to the correct WB preset and release). I certainly fail to see how this can be any more time consuming than fiddling with the in-camera WB settings while shooting.

I don’t recommend shooting RAW for beginners. Post processing can be a quagmire where inexperienced photographers often get lost and discouraged. However, once you get to the point that you can see what kinds of adjustments an image might need before you even release the shutter, shooting RAW starts to make a lot of sense. Used wisely, RAW images can open up a whole new world of creative and critical control. Best of all, you can always reset the image back to the default as-shot capture and do it all over again- all without creating multiple JPEG files to keep track of and store.

If you want to get an idea of what shooting RAW will do for your core image quality, look up the review of your camera on dpreview.com and navigate to the “Compared to (JPEG)” and “Compared to (RAW)” sections.

Camera Dojo just posted a pretty in-depth article on the same subject that is worth taking a look at.

Twilight

twilight

Dusk is my favorite time of day. I love the rich blues of the sky and the contrast of dark trees and such in the foreground. Normally, these shots require long exposures and a tripod to capture and a bit a tweaking post-process to get the lighting and color right.

This shot required a 30 second exposure at f/9 and ISO 100 with +1EV exposure compensation. I chose f/9 for two reasons. First, f/9 was the smallest aperture I could use and still keep the exposure under 30 seconds in Aperture Priority mode (maximum shutter time without switching to Bulb mode) at ISO 100. I wanted to keep the shot at ISO 100 to ensure tack sharp details, rich saturation and no noise. Second, I have found that my kit lens is its sharpest between f/8 and f/11, so f/9 was a logical place to start.

This photo was processed in Adobe Lightroom to look as close to what my eyes saw as possible. Here’s the original RAW shot straight out of the camera (SOOC) with nothing but my default import processing:

original SOOC unprocessed shot

Since I was shooting in RAW I left the white balance at Auto and simply used the histogram display on the LCD to verify a good mix of highlight and shadow detail. After downloading I started off by cropping and straightening the shot a bit. Next I tweaked the white balance to 3700K to get the blue to pop (the sky was too purple at the Daylight/5500 setting and too blue at Tungsten/2850). I then pushed the exposure up another +1EV and dropped the Black slider to 3. Nudging the Fill Light slider to 21 pulled even more shadow detail out. I set Clarity to 11, Vibrance to +25 and Saturation to +21. Finally, I added a touch of Sharpening and Detail (50 & 50) and Defringed all edges.

The Clarity, Vibrance, Sharpening, Detail, and Defringe settings are pretty standard for most of my shots with the Pentax K10D. I find the SOOC RAW files are a little flat color-wise and softer than I like. Also, the kit lens leaves a bit of color fringing on hard edges that Defringing seems to fix well.

The final result turned out very true to what I recall seeing that night in Birmingham. It was a bit windy so the tops of the tree branches are motion blured. The tiny star trails were an unexpected surprise.

About

I'm an industrial designer and an avid hobbyist photographer. People are always asking me "how'd you do that?" So, I decided to create this site as a place to share my experiences and insights about photography, the gear and what it all means to me. I'm not sure if this site will make anyone besides myself a better photographer but I figure it's worth a try. Take a look around and let me know what you think. Thanks for stopping by!

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