Hey guys, it's Karen from the stock view playground Welcome back. In this lecture we're going to have a look at the stuff your image is made of the pixels and how to organize your pixels. The amount of your pixels is given a Tata camera is made, you will not be able to increase the number of pixels on your sensor. You do however, have a huge influence on the way the pixels organized themselves. The moment you press the shutter and light falls on your sensor it gathers information. This information needs to be stored somewhere and a place where that happens is the memory card of your phone.
The way that happens is determined by the file format you choose. A file format is the structure of the information storage. in photography, we have two major file formats. jpg Emerald. The difference between these two file formats is the way they store all the information the biggest concern of the JPEG format In this store as many files on your phone as possible, as a result, a lot of the information sensor gathers gets lost. The biggest concern of the raw format is to store as much information on your phone as possible.
It actually stores all the information your sensor can laid hands on. In a JPEG file, a lot of the decisions are made for you. To make it smaller, it needs to post process and compress the image in camera. without consulting you, it decides on white balance, saturation and other camera variables already made image rolls out. There's not a whole lot of post processing you can do in a JPEG file. A RAW file, however, says to you, hey, look, I gathered all this information for you, you decide what you want to do with it.
As a result, the possibilities in post processing in a raw file are huge. It's possible to recover a lot of information it's not even visible at first sight. I always like to compare the two formats to rule though. RAW file is actually raw. It's raw though, you can make a loaf of bread from it and you can turn it into a roll. You can make a pie and a birthday cake from the same bowl if though it's up to you, the raw file lets itself need into almost anything you fancy, not a JPEG file, it is needed and baked in camera.
It is the roll. It's been in the oven and therefore it can ever go back to being a bowl of though there are some pros and cons to working in both file formats. The pros of working in the JPEG format are it's a small file size, it's ready for use because it's already post processed and compressed and you can share it without the need of special photographic software. The cons of working in the JPEG format are a lot of information is lost and it has limited post processing possibilities. It is not possible to adjust the white balance. The pros of working in role are there's no loss of information and you have full post processing possibilities.
All camera variables, it can reach larger contrast in a JPG file, and you can correct the color temperature for the full scale of temperatures. The cons of working in row are that it always needs post processing, it's not possible to share a raw file. After post processing, you need to turn the raw file into a JPG file to be able to share it. Let's compare the two formats visually. To show you the difference I went to into the extremes, I want you to keep that in mind. I kept all the variables the same apart from the file format.
In the camera app, you have the option to make a row and a JPEG file from the same image. So the image is exactly the same. The only difference is the structure in which they have been stored. I chose a high contrast subject and almost black statue against the white wall. Again to go into the extremes. It's a rather technical story, but just watch and listen.
And when you're done, you'll know you need to shoot him roll and you can forget all the technical stuff I'm telling you now. First I determined the proper exposure for the image. This was an exposure of one 250 years of a second was an ISO 400. Already you can see a huge difference. Remember the image is the same, it's the way they've been stored that makes the difference. Then I photograph the statue isn't underexposure at 1,000th of a second with an ISO 400.
As you can see the JPEG file tried to compensate for the exposure. It is lighter than the raw file. Let's see what we can do in the post processing phase. I adjusted both files the same in Lightroom. I increase the exposure was 1.4. This is the original RAW file.
And this is the adjusted file. This is the original JPEG file. And this is the adjusted file using our together from the raw file I was able to get a more or less okay image, but the JPEG file was not so cooperative and watch what happens when you open expose an image, I photograph the statue with an overexposure of one 60th of a second with an ISO of 400. The main difference is in the wide areas, the wall in the JPEG version is completely blown out, whereas in the raw file, you can still see some texture. I adjusted both files again in Lightroom. The same way I decrease the exposure with 1.4.
This is the original RAW file, and this is the adjusted file. This is the original JPEG file. And this is the adjusted file. When we compare them the raw files quite alright, but the JPEG file is useless. It was not possible to retrieve any information in the white wall leaving it completely blown out. When we put it to adjusted RAW files side by side they're almost the same.
We cannot say that for the two JPEG files. Let's say a raw file is much more forgiving than a JPEG file. Not only when it comes to exposure, but also when When it comes to correcting the color temperature, a few more things you need to know about shooting and roll. A roll file is larger than a JPEG file. On average, you should count on about 50% larger, the previews of the raw file in your camera roll are scaled down for faster performance. This means the resolution and sharpness is not as large as the original shot.
Once you open the file in an editing app, the original file will appear. See you in the next lecture. And in the meantime, happy photographing