A reader was recently asking me about RAW vs JPEG for a Canon workflow and in the process of replying to those series of emails, I had an ADD moment.
For fun I started comparing the RAW conversion of a Canon CR2 raw file using the latest RAW conversion software from Adobe and Canon as of November 3, 2015. To make things more interesting, Canon actually has two versions of its Digital Photo Professional (DPP) software floating around for legacy reasons, so I was curious as to the result I’d get using what amounts various different conversion techniques.
This is actually an exercise I do time to time anyway because as software and firmware gets updated, the processing changes often yield different results (not always for the better). While this article is Canon specific the same concepts apply to any camera that creates a RAW image that is supported by computer based software and/or Adobe products. If you haven’t done this exercise on your own already, I’d encourage you to do so!
Default in-camera JPEG
In-Camera JPEG (downsized in Photoshop,watermarked by Zenfolio)
This is when the raw data is converted in-camera and applies all of the editing settings like color space, picture style, white balance, etc… to give you the image you see on the rear LCD panel of your camera. Even if you “only shoot raw” you see this image as the thumbnail to your RAW file and it’s the data that the camera’s histogram that you see is based on.
This raw processing is burned into the firmware of your camera and it will only get updated if something significant warrants a change. As a result, you’ll often fine that the in-camera RAW processing is very different from software processing – especially if the software is getting updated regularly.
Lightroom CC 2015.2.1 (ACR 9.2.486)
Lightroom CC 2015.2.1 / ACR 9.2.486
Lightroom uses Adobe Camera RAW (ACR) to convert your raw data in a CR2 file into something you can see and use. The develop tab allows you to tweak those settings, but Adobe also reverse engineers these files to try to create something you’d like as a starting point for your editing process (in the Camera Calibration section – see the “Process” option). The default is Adobe Standard which simulates Adobe’s ideal, but “camera” processing styles are designed to loosely mimic how your camera process images. In the case of Canon, they are trying to map to your Picture Styles.
Digital Photo Professional (DPP)
DPP comes in the legacy version, DPP 3.x and under, which supports nearly every CR2 file Canon has made. Recent updates have added support for easily updating lenses without having to get a whole new version of DPP. Here’s what 3.x looks like:
DPP 3.15
It’s a crude and nasty UI that you’ll be tempted to dismiss. In fact, most people never bother to even install DPP off the disc so many don’t even know it exists. While the user interface does stink, the quality of the algorithms under that ugly UI are very powerful.
DPP 4.x
DPP 4.3.31.0
Someone at Canon got the bright idea to do a whole new DPP from the ground up that had much better support for things like printing, soft proofing, adjustments and more. However, getting parity with the previous version proved to be more than was expected so the new version only works with the latest cameras. What this means is that if you try to open up a CR2 file from an older camera, say a 5D Mark II or 1D Mark IV it may not be able to read the RAW file (although updates are promised – eventually).
While the new UI is better, it still is a far cry from Lightroom or ACR. As a result, I still rely on it for the underlying processing and not the user features.
In theory one should be able to “only shoot RAW” and generate the JPEG’s that would normally be rendered in-camera. Sadly this isn’t the case because the RAW processing done by DPP will use the latest technology vs the camera which uses its firmware – typically with much older processing techniques. However, it can also be frustrating when you see something you love on your LCD only to have to spend a lot of time getting your RAW image to match your CR2 thumbnail file. In fact, I’d argue that the quality of the firmware based processing is often superior to software alternatives.
Comparison
When you zoom in at 100% and compare the layers against each other you’ll notice that DPP 4.3 and Lightroom are pretty close to each other in the way that they process the raw data. The colors are a bit more rich and the highlights aren’t as blown on the DPP 4.3 version, but you have to look carefully to see the difference.
DPP 4.3.31.0
Lightroom CC 2015.2.1 / ACR 9.2.486
In-Camera JPEG
DPP 3.15
Where things get more interesting is that the old 3.15 version of DPP generates the file that is closest to the in-camera JPEG, but notice how none are identical. This is one of the big reasons why I try to shoot RAW+JPEG whenever I can as I like the in-camera processing since that matches what I saw on the rear LCD. It’s the softest of the image, but it’s typical Canon warm and vivid.
Click here to scroll through larger versions of the images converted in this article.
Notice the different results
If you have a good eye, you’ll notice that all methods result in different images – even if there are some similarities. This is a long running problem because the software in DPP is simulating what the camera does and its constantly being updated. The in-camera processing only changes if the firmware changes, and even then it’s rare for it to change unless there’s a problem. What this means is that you’ll never really be able to take the RAW and generate a JPEG that matches what you saw on your LCD (or CR2 thumbnail).
As a result, if you like what you saw when you were chimping the LCD and you want the option to use that photo, then you’ve gotta shoot RAW+JPG. If you don’t care then shoot straight RAW and just take whatever Adobe, or DPP gives you.
Advice for Canon Shooters
I love RAW and always shoot RAW, but I don’t always need to use the RAW file. For many images the default in-camera JPEG is a perfect starting point for editing. If I did my job right it’s 90%+ ready to publish in-camera. This means I can make some quick edits using my favorite plug-ins then print or publish to the web.
If I screwed up in camera, am printing large or doing commercial work where every pixel matters then to go to RAW. I always have that insurance on hand by shooting the RAW file, and I never delete my raw files.
If I’m not happy with how Lightroom or ACR processes the file so I start by processing the RAW in DPP and exporting it as a 16-bit TIFF using the Wide Gamut RGB color space (Edit | Work Color Space) using the File | Convert and save feature.
Some may also prefer to use other raw processors discussed in the next selection.
RAW Processing Alternatives
Of course there are other RAW converters out there that offer results that differ from the ones above. Some argue they are better, others suggest they are simply doing the technical equivalent of the processing above plus applying their own creative edits to an image up front. Two of the better RAW editors that I’ve used are Piccure+ and DxO OpticsPro.
For completeness I’ve included how a couple of them handled this file as well.
Piccure+ 2.5.0.55
Piccure+ 2.5.0.55 (learn more)
Piccure+ is powerful, but it is painfully slow with the most awful user interaction experience I’ve seen in my 26 years of software development thanks to its lack of a proper save implementation.
I’m told by the founder that the design is optimized for batch operations whereby you choose your project folder up front and then when you work on the file the image is stored there. The problem is that the location where you set your project info isn’t visible when you are doing your file processing so it becomes a mystery as to where your file went. What’s more the way you get back is via the back button which is sometimes replaced by the cancel button which isn’t exactly intuitive either.
Eventually you get used to the user-interface quirks and while it is slow to work, it does a great job. It’s batch mode design can be helpful if you want to give it a bunch of files to process overnight while you sleep, so if you love its RAW conversion then there’s a way to love it without experiencing the pain of processing.
Here’s how it handled this file:
Piccure+ created a darker, saturated and softer version
At first the image appears oversaturated, but if you look carefully it seems it has done a great job of color balancing the image for the maximum dynamic range and tonal range of each color. The net result is an image that looks visually pleasing without appearing to be overdone – in my opinion.
The default noise reduction and sharpness settings do leave the image softer than Adobe, and Canon typical do, but that can be adjusted to suit your desire. Personally I’d still rather leave the noise reduction to Noiseware after the fact.
DxO OpticsPro 10.5.1.848
DxO OpticsPro 10.5.1.848
DxO OpticsPro has a wealth of powerful features making it act like Lightroom and Perfectly Clear rolled into one. The advantage to this is that you end up with a lot of powerful editing done in one place and it can be saved as a preset for default processing of your RAW images. DxO’s experience with sensors and cameras comes into play to create corrections that promise to minimize the negative effects of noisy sensors and lens distortion / vignetting.
Here’s how it handled this file:
OpticsPro really brightened up the shadows
DxO does a lot of cool stuff and has noise reduction software that I think is superior to Lightroom and DPP, but still not as good as Noiseware. The image that gets created is pleasing but it is different size than the others so you’ll notice some pixels shifting around if you look at all of the images in the sample gallery.
Conclusion
Click here to scroll through larger versions of the images converted in this article.
Licensing restrictions for this file required me to use a watermark and limit the file size, but it’s still easy to tell what changes between each version when viewing larger files. All images are copyright Ron Martinsen and may not be redistributed, linked or repurposed without written permission.
Personally there’s no wrong way, so this isn’t really a call to action to change your workflow. Instead, it’s about awareness of some things to consider. What’s more, some of the “I only shoot RAW” zealots may find that life is much simpler when you use a little storage space to have the option of using the JPEG for non-critical scenarios (like the 200 shots of your kids or pets), and just process the RAW when they actually need to.
Where to order
I’ve got a special offer for Piccure where you can save 10% when you CLICK HERE and use the coupon code RONMART as shown above (available via credit card only).
DPP comes free with your camera on a CD, but you can also get it off Canon’s website using your camera serial number. Be sure to check out my article entitled Guest Blog: Five reasons to try out Digital Photo Professional by Andrew S. Gibson to learn how to master cool features with DPP.
Adobe Camera Raw can be free if you download the Adobe DNG Converter off their web site, but most people will use it via Lightroom or Photoshop.
DxO OpticsPro (available on Amazon) is the most expensive of the bunch, but it fancies itself as a Lightroom alternative with exclusive features that normally require plug-ins so some consider it a fair deal.
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