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When you look at some beautiful scenery or take in the party with your friends, you may want to take some photos to record the moments and save it forever. Digital cameras are increasingly popular and affordable to customers. The photos taken by digital cameras are RAW images. Most digital cameras have the ability to compress the photos into JPEG files automatically after shooting. However, you should know that JPEG is a compressed image format, so sometimes you may want to keep the camera RAW files and their quality.
You may have heard about RAW in all kinds of photography blogs and sites for many times. It seems that the RAW format is the best format in photography. Is it true? Why so many people prefer to shoot in RAW file format? Where is RAW format used? If you are new to RAW, you just come to the right place. This article collects some frequently-asked questions about RAW format in photography. You can keep reading to get the complete answers.
The RAW data format was released since the beginning of digital cameras. Though you can capture details in RAW format, there is no way to edit or store the RAW data. The first camera RAW format was launched by Adobe in 2004. Camera manufacturers had used the DNG RAW image format in new camera models, such as Pentax, Leica, Samsung, Ricoh and more in 2006. The DNG specification patent license was released in September 2009. Thus, you can convert and edit RAW files with paid and free alternatives.
Camera RAW is the raw image format of digital cameras. It is a kind of unprocessed photograph format. The camera will record all the data from sensor into the photos. A RAW digital image has a wider dynamic range or common gamut that the developed films or prints.
Compared with JPG, JPEG, PNG and other common image formats, RAW image files take much larger storage space. Consequently, the RAW image format can preserve the most information captures at the time of exposure. So photographers could get the highest quality images and correct the images with the information in photo editing programs.
Different camera manufacturers save RAW files in different RAW filenames extensions. The available RAW file extensions include .3fr .ari .arw .srf .sr2 .bay .braw .cri .crw .cr2 .cr3 .cap .iiq .eip .dcs .dcr .drf .k25 .kdc .dng .erf .fff .gpr .mef .mdc .mos .mrw .nef .nrw .orf .pef .ptx .pxn .R3D .raf .raw .rw2 .raw .rwl .dng .rwz .srw .x3f.
Today, most recent digital cameras have the ability to compress RAW files to JPEG photos spontaneously. Generally speaking, JPEG files have some advantages, like smaller file size. But some photographers prefer to keep and deal with the camera RAW files, because there are more benefits to take photos as RAW files.
By taking pictures in RAW format, you can get the excellent image visual experience with the minimum loss of information and data captured from the sensor. The RAW file structure contains the following elements.
1. A short file header, a file identifier and an offset.
2. Camera sensor metadata and image metadata.
3. An image thumbnail.
4. A full size JPEG conversion of the RAW image.
5. The sensor image data.
There are many advantages of using RAW image format. The followings are some representative reasons for shooting in RAW.
Camera RAW files record greater levels of brightness. The levels of brightness are related to the distribution of black and white. So the greater the levels of brightness the image file contains, the smoother the image looks like. A JPEG photo has 256 levels of brightness; while RAW contains more than 4000 levels. That means you can adjust the brightness and white balance without losing quality. Brightness and white balance is the basis of a clear image. Adjusting a camera RAW will make it closer to the real world. So you can shoot landscape with high levels of brightness in RAW format.
Apart from brightness, RAW files will keep more information about exposure of the photos. When we take photos with digital cameras, the problems of excessive exposure and underexposure are very common. If you want to correct the exposure with photo editors, you have to provide the information related to exposure. Camera RAW is easier to be correct, for it records more exposure information. That will make the photo editor smarter when dealing with images. So even though you have taken a dark RAW image, the editing program could produce a clear image with the extensive exposure information.
When you enlarge the images, you will discover that images have noises. It is okay to enjoy these images on digital devices. When you print the images, the noises will affect the quality of the output. So after shooting photos, photographers usually utilize program to reduce noise and sharpen the images. At this time, the camera RAW and the details it records will become very useful; because the noise algorithms embedded in programs, like Photoshop, will read RAW files. While JPEG does not have the information that such algorithms could read. If you have printed JPEG images and RAW files, you would understand the difference is great.
The first chance is when you shoot the picture. There are a lot of uncertain elements decide the quality of the images, like the light, the shooting angle and the natural environment. The second chance is when you edit the images with programs. Although only a part of photo editors supports camera RAW, the plentiful information RAW contains will make the process easier. Photo editors could read RAW as read program language. On the other hand, the quality of the images will not be reduced when photo editors deal with RAW images.
It really matters to find the best RAW file viewer that can meet your demand perfectly. If you don’t have a RAW viewer, it is recommended to use WidsMob Viewer Pro to open RAW images and videos on your computer. The wide support of RAW format cameras and RAW file extensions allows users to view media files from all digital cameras.
You can play all media files flexibly with the folder-based viewing experience smoothly. With the help of the hardware acceleration algorithm, you can enjoy RAW files at 5x speed. Moreover, you can get powerful features to manage and edit RAW files within the RAW viewer software. Here’re the main features you can get.
1. Open 50+ RAW formats captured by popular camcorders.
2. Play all photos and videos taken with the camcorder or phone with the folder-based browsing feature.
3. Read RAW metadata by checking the EXIF information.
4. View and manage all RAW files with thumbnail, library, slideshow, favorite and EXIF modes.
5. Batch convert, resize and rename RAW files.
6. Save and share RAW images to the desired formats or platforms.
This section will show you the brief RAW viewer’s tutorial. You can also head to the official site and download the program to explore more features by yourself.
Step 1: Import RAW photos to image viewer
Just download and install the latest version of WidsMob Viewer Pro. Launch the program and click the “Open…” option to select the camera RAW files from the destination folder.
Step 2: View RAW images with different modes
The RAW camera images and videos will display in thumbnails. You can scroll down and browse all those RAW files quickly. Double-click on any file to preview details with a larger screen.
Step 3: Check the detailed information of the image
After that you can click the “View” menu and choose the “Show Info” option to check the detailed information for the RAW files, such as camera type, ISO, LDR, flash, focal length, white balance, brightness, contrast, situation and more.
Step 4: Add RAW photos to favorite folder
To get the RAW editing tools, you can unfold the Edit list. Here you can rotate, flip, crop and batch edit any RAW files. In addition, you can add the picked RAW image or video to the Favorite folder by choosing Add to My Favorites. By the way, you can click My Favorite to quickly locate the marked RAW files.
Step 5: View or convert the image files
If you want to save the files for other devices, such as iPhone or Android phone, you can click the save the camera RAW to JPEG or other formats in batch with the media viewer.
It is not always good to shoot everything into the RAW format. If you don’t apply further editing to your image, shooting in RAW is not a good idea. Because a file in RAW format will add time to your workflow. Though you can get pictures in extremely high resolution, the camera’s memory card will be filled up quickly. After all, RAW files take much more storage space than JPEG files. If there is no computer around you, and you need to take lots of pictures, it is not recommended to take photos in RAW format.
JPG or JPEG is also a popular image format. There is no winner in RAW vs JPG. It depends on the occasion you use. JPG is a compressed image format that keeps the pretty good quality in small file sizes. Thus, many people download, share and convert photos to JPG format. JPG file extension is compatible with mobile phones and cameras. While RAW format is limited with DSLR, mirrorless cameras and some phones. Thus, JPG has a better popularity than RAW in common cases.
A picture in RAW file extension can be stored between 68 million and 4.3 trillion color shades. However, a JPG file can store information up to 16 million shades of color only. If you want to keep all details, definitely you should use the RAW format. Well, you can regard JPG vs RAW as the comparison of light and ultimate versions.
Just as mentioned above, JPEG also has benefits, like seizing just a little space. So you might become confused: when should shoot camera RAW and when should shoot JPEG. Generally speaking, you’d better take RAW images when:
1. The circumstance is poor, like in a dark room without light, under the shining sun, or there is interfering light surrounding.
2. You are taking portraits or preparing to process the images later.
3. You are going to enlarge the images or print them.
While in some conditions JPEG is the better choice:
1. Taking photos in perfect light conditions.
2. Sharing the photos directly without post-processing.
3. Just record everyday snapshots.
With the above knowledge, you can know when and why to use RAW format in photography. Generally speaking, RAW is the best image format that can preserve the information from the camera sensor data ultimately. If you want to get an uncompressed picture with massive image information, RAW format photography is your first choice. Consequently, you will also get the large image file sizes while shooting in RAW.
Whatever, you need to drag and drop raw images from your digital camera to the computer for management. During this time, you can open RAW files with the RAW viewing software mentioned above. The program can open hundreds of RAW images simultaneously without crashing. You can still get the smooth RAW photo viewing experience here.
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