Hello everyone, welcome
back to Pixel Viilage and I am Radhakrishnan. Pixel Viilage is the place as you
know where you can come and expect the
most complex of the photography subjects explained in the most simplest form. At least that's
what our endeavor is. So, if you have not already subscribed to our channel, please hit that subscribe
button and also hit that bell button, so that you know every time we upload a new video. Now, the
subject for today is probably as old as the digital photography itself. Raw or JPEG. Though this is been one
question that is been extensively discussed in various forums and videos and on all possible places, people
still have this question in their head popping up every now and then. We in Pixel Viilage, have a
very definite opinion on whether RAW is better or JPEG is better.
But at the same time, I
don't want to force my opinion on to you. Instead I would like you to look at a small experiment that we are going to do here
and understand it, assess it and evaluate it for yourself So, what are we going to do? We're going to
set up a small shoot, I am going to hold a color chart in my hand and request Nikhil to take a photograph of me
and we will look at that photograph on the computer and analyze it and hopefully at the end of the
video, we will have an answer. And as they say, seeing is believing.
Over to the set-up.
So, this is our simple
set-up and for this demonstration, I have to make this light a little more
contrast here.
So, can we switch off the
key light that we are working with. Good. So now as you can see the light is
become very contrast. I have this color
chart, which I'm gonna place at front of me, facing the light, so that we can see what is happening to the colors as
well. So Nikhil, can you come and take a photograph? Okay, thank you Nikhil. Uh.. you can move the
camera. Lets bring the light back in.
So, what we did was, we
took two images, a RAW and a JPEG Fine with similar settings and we have it in the computer and lets look at those images.
The images were shot using a D810 which is a 36 megapixel camera and both images were shot with exactly
identical conditions. In fact, we shot the RAW
and the JPEG together, in one setting. So, we are now looking at the
JPEG now, and this is the RAW When you
look at it, side by side, well there is not too much of difference. But let me
tell you a JPEG is shot as an 8-bit
image, but the RAW can be shot at either 12-bit or 14-bit. A JPEG which is shot
at 8-bit can record only 256 levels of
brightness, whereas, a RAW image which is shot at 14-bit can record upto 16,384 levels of brightness, which obviously means
that the RAW can record many many times of
information in comparison to the JPEG which is shot at 8-bit. So that's one.
So, clearly from the beginning itself
the RAW is winner by many miles. Now, coming to the next one. A RAW file
contains data from the sensor as it is,
it is not an image just yet, you need to send it through a software to decode
the data and send it as an image in
front of you, whereas JPEG goes through an in-camera processing, it applies all
the filters and corrections and settings
that you have set in the camera already. Which means what you're going to see
as a JPEG image right in front of you,
which of course when I am looking at now, is an already processed image and there is very little room left for me to
do any further processing. Whereas the RAW is like a negative If you understand the film world, its like a
negative for you, you can use it and print it the way you want it which means, here a RAW image can be
processed in a way which you want it. Of course it also has certain restrictions, but it allows you much more
elbow room to process. Let's look at a simple example. Now, I told you in the beginning that we are going to
purposely shoot the contrasting image. So, let us look at the this particular image, here, the shadow is
gone really deep and to correct this shadow obviously Capture1 Pro allows you to do a shadow
correction, by pushing up the shadows, yes, now I have gone to almost 90% of the correction done. But still there
is no more information here around my collar
Let me switch to the RAW okay.
Now, this RAW, at this point, no corrections applied, let me make this same
correction okay, I am going to open it
up and see the amount of information that you have retrieved already. correct Lets see it side-by-side. The one of the left
is your JPEG and one of the right is your RAW. Same corrections applied to both images gave you a different
feel altogether. Now lets see what happened to the remaining part of the image. Lets look at the
JPEG. Can you see an ugly banding happening here, which is really really dirty. Now lets look at the RAW
in the same way. Definitely there is so much more information in the shadow, whereas this is the best I
could open up, but still there is so much of mug in the shadow and some ugly banding happening already
everywhere. Whereas, with the RAW image the transition from shadow to brightness through the mid
tones are very smooth even now. Now, lets look at the highlight Now, this is the brightest part of the image
and this one is the brightest part of the JPEG. Now, what I am trying to do is to retrieve, get some more
information in the highlight area. Its
not really burnt, its well within the 255
but still, let me see how much I can retrieve. So, first let me try and
do that with the JPEG. So, the highlight control and yes, a lot of information is brought back
in the JPEG. Now, look at what is happening to the RAW image when I do the same correction. The control or
that correction is much more natural. Now, if you look at both these corresponding places, let me give it to
you at 200%, okay, that's 200%. Look at these two areas.
where there was highlight
earlier. I pulled it but you see the decolonization here? Its because this
software is trying to artificially
trying to fill in making lots of calculation, trying to fill in all those
details. Whereas here it is very smooth,
the operation was so easy for the software to bring all those information back
in there is no change in color, its
still that bright gray. Now, let me go back. Now, you can see the difference its like my favorite word, Day and night! So,
as you can see, correcting your shadow area is much easier with your RAW image than with your JPEG image. So,
it is very evident from these two images. Okay, next, is the picture style. Picture style is again bonded
as I told you earlier, it is processed in the camera, so any corrections that you do to it, is not really going to go
down well, with the image. Whereas, correcting your sharpness, your clarity, and your structure and all
those controls are much more easier with the RAW image than with the JPEG image The next important point to be noted is that
JPEG gets shots in a particular size, whereas, because the RAW is shot as data, while processing, you can
increase or decrease the size, according to your requirement.
Not that JPEG will not
allow you to do that but, beyond a point, the quality starts deteriorating
drastically.
Another important
disadvantage in shooting with JPEG is
that you have to pre-determine the color space that you are going to work with. Whereas in RAW,
you have that freedom to select your appropriate or decide a color space while doing the output. Let me
add one more interesting benefit to the RAW shooter.
The RAW image stays
in-destructive, in spite of making so many corrections and adjustments, over it, whereas, if you make corrections and
adjustments to a JPEG image, you will have to burn that correction into it, you cannot really go
back unless you save it, as a new file, which means every time you you go back to your original file, you have
to remember and make all those corrections all over again With regards to RAW, all those corrections
will stay as layers and layers over it, you can add, remove, change do whatever you feel like, at any stage of
the operation. So, do you still have doubts? Let me try and explain to you in a real idiot-proof way. Okay, what we
have here are two bottles of milk. One is whole milk the other is skimmed milk and obviously, you know that
qualitatively, the whole milk is much better than than the skimmed milk. It contains lots of
nutrients, and tons of by-products. Of course there is a lot of people who would consume skimmed milk for a reason.
In our case, the whole milk represents the RAW and the skimmed milk represents the JPEG. Well, the
advantage with raw milk is that I can add water to it and convert it into skimmed milk, like I can
make, JPEG from a RAW. But, not vice versa. So, who would require the skimmed milk which is equivalent to lets
say JPEG. People who do not really require too much processing People who have to reproduce image in a GIF
like a journalist on the filed who has to capture the news item and send it to the publisher immediately. A
lots of people who use topical items or for internet. They all may not require JPEG. And to the rest who
will like to extract the best out of your camera and create those stunning
images whole milk is the way, sorry, RAW
file is the way to go. Bye for now.
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