On my photo workshops I conduct regularly, I always run into someone not shooting in RAW. Typically, they’ve recently stepped-up to a DSLR from a point-and-shoot camera that did not have this file format or they don’t understand the benefits even though they have heard over and over that you should be shooting in RAW. But do you know why it’s so important? And what it really means for your images? Let’s sort it out!
First off, what is RAW? RAW is a file format that captures all image data recorded by the sensor when you take a photo. When shooting in a format like JPEG image information is compressed and lost. Because no information is compressed with RAW you’re able to produce higher quality images, as well as correct problem images that would be unrecoverable if shot in the JPEG format.
And happily many cameras these days shoot RAW, including some point and shoots! So even if you’re using a little camera, you might still be able to take advantage of the RAW file format (just check your camera manual to see!).
So, the benefits. Let’s look at the big ones…
1.
Get the Highest Level of Quality
This is one of the biggest benefits.
When you shoot in RAW you record all of the data from the sensor.
This gives the highest quality files. And when it comes to your awesome images,
you want high quality.Look at it this way: all cameras
technically shoot RAW. Yes, it’s true.The difference when you shoot in JPEG
format is that the camera does it’s own processing to convert the RAW
information into a JPEG.
However, your camera is nowhere near
as smart as your brain, nor is it as powerful as your computer. When you shoot RAW,
you’re able to do that processing yourself. You can make the decisions on how
the image should look, and produce way better results.
2.
Record Greater Levels of Brightness
Levels of brightness are the number
of steps from black to white in an image. The more you have, the smoother the
transitions of tones. Smooth is good.
JPEG records 256 levels of
brightness, and RAW records between 4,096 to 16,384 levels! This is described with the term “bit”. JPEG captures in
8bit, and RAW is either 12bit or 14bit.
The effect this has on your images
is huge. Those additional steps of brightness let you make more adjustments (exposure,
black levels, mid-tones, recovery, contrast, brightness) to your image without
a significant reduction of quality, because there’s more levels to
work with!
It’s also easier to avoid or correct
posterization in your images when you shoot in RAW. Posterization is the banding
that you often see in bright skies, which really doesn’t look good
in prints!
3.
Easily Correct Dramatically Over/Under Exposed Images
Obviously you want to get the best
exposure in camera, but sometimes things move fast (especially with wildlife!)
and you wind up with a dramatically over or under exposed image.
With RAW you have additional
information in the file, so it’s much easier to correct the image without a
drastic reduction in quality. You
can also recover more blown highlights and clipped shadows. Good stuff.
4.
Easily Adjust White Balance
When you shoot JPEG the white
balance is applied to the image. You can’t just easily choose another
option. With RAW the white balance is still recorded, but because you have
way more data, it’s easy to adjust.
Great white balance and color are
essential to an awesome image, and shooting RAW lets you make the adjustments
easier and faster, with better results.
5.
Get Better Detail
When you shoot RAW you have access
to sharpening and noise algorithms in a program like Lightroom that are way
more powerful than those found in your camera.
Plus, these sharpening and noise
algorithms are always improving, so in the future you’ll be able to re-visit
your RAW files and take advantage of these improvements.
6.
Enjoy Non-Destructive Editing
When you make adjustments to a RAW
file, you’re not actually doing anything to the original data. What you’re doing is creating a set of instructions for how
the JPEG or TIFF (another file format) version should be saved.
The awesomness of this is that you
never ever have to worry about ruining an image, accidentally saving over, or
being unable to go back and make changes. You can always reset your
adjustments, and start over again.
JPEG files lose quality every time
you open them, make adjustments, and save again. True story. It’s what is known
as a “lossy” file format. So if you’re making edits to JPEGs you always have to
be duplicating the image and saving out a new version if you don’t want to lose
file quality. Hassle.
7.
Get Better Prints
Because of the finer gradation of
tones and colors you’ll get better prints from RAW files. Even though more and more people are shooting digital,
great prints are as important as ever (maybe even more so, due to their
relative rarity!)
8.
Select Color Space on Output
Color space is a bit of a complex
topic, but here’s a quick tip. With RAW you can choose from any color space
when you are exporting it out, so you can adjust depending on
the situation!
Is the image going on to the web?
Then output in the sRGB color space to ensure maximum compatibility among
web browsers.
Are the files heading to a client?
Save it in the common Adobe RGB (1998) color space.
Do you want the widest color space
possible? Use ProPhoto RGB.
Basically there are different color
spaces that work best for different situations, and when you shoot RAW you can
export a single image in multiple spaces! Sweet!
9.
Have an Efficient Workflow
It’s easier to work through large
batches of images when you’re using a workflow centric program like Lightroom
or Aperture. They’re designed to easily process
groups of RAW images. Photoshop is not meant for that kind of thing, it’s built
to handle one image at a time. In order to take full advantage of
all the benefits of Lightroom and Aperture you should be shooting RAW!
10.
It’s the Pro Option
Professionals should be providing
their clients with the highest quality possible. Issues like banding and blown highlights are big deals when
you’re offering your clients printed products. Achieving proper color balance,
and choosing the right color space for the situation are critical as well.
By shooting RAW you take control,
and are able to manage these problems to create the best results possible. Now that some point and shoots are
capable of shooting RAW, most everyone can take advantage of this pro level
option, and get better files and prints! Good deal.
Downsides
and Solutions
Now, there are always pros and cons
to every option, and RAW does have a few downsides. We’ll chat about those, as
well as some potential solutions!
Need
To Be Processed
A common argument against shooting RAW
is that because the files need to be processed, it takes more time to shoot RAW
than JPEG. If you don’t do any processing to your JPEGs that might
be true.
However, most photographers do some
level of processing to their JPEGs so already the argument is
getting flimsy.
Then, when you add in the fact that
adjustments like white balancing, and recovering highlights and shadows are way
faster with RAW files, and it actually begins to look like processing RAW can
be faster than JPEG!!
Then, with RAW, you can easily
export to JPEG, as well as convert to various sizes (like web res) at the same
time. If you really wanted you could even shoot RAW + JPEG simultaneously!
RAW gives you way more options, and
can be processed just as fast, if not faster, than JPEG.
Takes
Up More Space
Since RAW files have more
uncompressed information they can be 2-3 times larger than JPEG files. This is
definitely a concern for many shooters, especially those who create a lot
of images.
But over the past few years, the cost
of hard drives has really dropped, and they’re incredibly affordable!
Let’s consider a 1TB
hard drive.
- A 1TB drive costs about $55
- If a large JPEG file is about 8MB, you’ll fit 125,000
images on the drive, at $0.00044/image
- If a RAW file is about 30MB, you’ll fit 33,333 images
on the drive, at $0.00165/image
Obviously you can store fewer RAW
files, but the number of images that you can cheaply store is so large for both
formats that it’s not really an issue! It’s also probably a good idea to not
place so many images on a single hard drive. Don’t put all your photographic
eggs in one basket!
Memory cards are the same deal.
They’re constantly dropping in price. Remember when a 2GB card was over $200??
Nowadays you can hardly even buy one that small, and 16GB is as cheap as
$15. Madness!
Yes, RAW files are bigger and take
up more space. But that’s because they’re of higher quality. Go with high
quality for the extra $0.00121/image.
Slows
The Camera Down
RAW files are larger than JPEGs, so
they’ll fill up the buffer of your camera faster. The camera will still shoot
the same frames per second, regardless of whether it is RAW or JPEG, but you
may have to wait for the camera to write to the memory card if the buffer
fills up.
If shooting fast sequences if
critical for you, and you want to shoot RAW, you can purchase faster memory
cards, or a more expensive camera with a larger buffer.
In
A Proprietary Format
RAW files are often recorded in a
proprietary format, which means that the camera manufacturers haven’t
officially disclosed how the raw data can be converted. Companies like Adobe
either need to license software to decode the RAW files or reverse engineer how
the files should be converted. (For Canon cameras the RAW format looks like .CR2
and for Nikon it’s .NEF).
The problem here is that you can’t
be certain that in 5, 10 or 20 years you’ll be able to easily open that RAW
file if you don’t have the proper software to decode it!
A open source RAW format has been
developed in order to overcome this obstacle. It was developed by Adobe and is
known as DNG
(Digital Negative). Using a program like Lightroom, you can convert your
proprietary RAW files into the open source DNG format. It’s an extra step, but
it will ensure your files are readable far into the future!
Already the Leica M9 shoots in the DNG
format, so look for more camera manufacturers to support this open source
format in the future!
Wrap
It UP!
Hopefully this look at RAW and it’s
benefits has cleared things up a bit! Suggestions that RAW takes too long, or
is too much work, don’t really hold water anymore.
These days, it’s super duper easy
(and fast!) to process RAW files, and you’ll be able to get the absolute
best quality out of those images that you put so much time, effort and
love into!