- Aug 5, 2013
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I’ve been reading this forum and it seems to me that there is some confusion about RAW image capture and processing, and how it differs from shooting in JPG mode and processing.
To put it simply, RAW is the unprocessed, "lossless" image file format. The data is read off the sensor and saved in a file that is read by most, if not all RAW image processing apps, such as Adobe Lightroom, Apple Aperture, etc. It first was introduced in DSLR and medium format SLR cameras. It gave professional photographers the ability to edit photos post capture in a non-destructive way; meaning any changes can be undone or changed again without affecting image quality. Of course, camera makers have proprietary RAW formats, CR2 (Canon), NEF (Nikon), etc. Enter the Adobe DNG standard. Adobe introduced the DNG, or digital negative format in Sep 2004. The intent was to provide an open standard for all still image capture. However, the major camera makers like Canon, Nikon, and a few others, continue to manufacture cameras using their own proprietary RAW formats. Several other camera makers though, have adopted DNG as their RAW capture format. Currently all DSLR, medium and large format cameras, and a select few point and shoot cameras and (to my knowledge) only three smart phones allow you to capture images in RAW format. The three smart phones, all Nokia models, are the Lumia 1020, 1520, and Icon.
The JPG or JPEG format has been around for decades. It was designed to send efficiently send and receive image files via electronic means and by far the most used image file type. The JPG format is a "lossy" format meaning every time you open the file, edit it, and save it, you are degrading the image quality. Over time as the file is reopened and saved, you will see a noticeable degradation in quality. Additionally, you can increase compression to reduce file size; which degrades image quality. The higher the compression the lower the quality. Additionally, since it is a destructive format, any changes made to the image are permanent and once saved cannot be undone. All digital cameras allow you to capture images in the JPG format; and depending on camera/phone model you can change image quality and compression levels.
So enough with the history lesson and let’s answer the question, “So why should you as a Lumia Icon user care? A photo is a photo right?” Well...yes…and…no.
There are some advantages and disadvantages to each format and they pretty much depend on your photo needs and what you intend to do with them.
Let’s start with RAW image capture.
RAW Image capture advantages:
- Greater post capture image editing options. Since RAW is non-destructive and lossless, you can make changes to your heart’s content without fear of permanently changing the original file. Any changes you make can be zeroed out and you can start from scratch. You also have the ability to change WB, exposure, saturation, sharpening, noise reduction etc. For example, Adobe Lightroom allows you to increase or decrease the exposure by up to 3 stops. Very handy for slightly over or under exposed photos.
- You can export into any image file format that your RAW processing app supports; TIFF, JPG, PNG, whatever.
- As RAW image processing apps improve, you can go back and reprocess the original file using newer algorithms. Even if it was taken 10 years ago. As long as it was shot in RAW, you can still edit it in modern RAW image processing apps.
RAW Image capture disadvantages:
- Larger image files. The DNG file on the Icon is a 20MB file. Since the phone is fixed 32GB, minus app storage and other files, your phone’s storage can fill up real quick.
- The need for a third party RAW image app such as Lightroom or Aperture. Currently, there are no WP apps that allow you to process RAW files on the phone (though Photoshop Express is coming to WP soon). Therefore, you have to download the images to a computer (Windows, Mac, or Linux) before converting to JPG using a RAW image conversion app.
- Cannot upload directly to social media, send via MMS. You must convert to JPG first.
Now let’s talk JPG.
JPG Image capture advantages:
- Files are much smaller, half the size or smaller. With fixed 32GB of storage this can make a difference. This also allows you to auto upload to OneDrive without putting a huge dent in your data plan.
- You can upload the file directly to social media and send via MMS to other people without having to convert the image.
- Plenty of image editing apps for the phone, such as Nokia Glam Me or 4Blend HDR. You can make basic edits on phone.
JPG Image capture disadvantages:
- Limited post capture image editing options. The white balance, exposure, etc., is set by the camera and cannot be changed post capture.
- Because JPG is a lossy, destructive file type. Any edits you do are permanent, and you can’t change it back once you saved the file. Additionally, increased file compression will degrade the image quality the more you compress it.
So what format should you use?
Well… that depends on your needs and what you intend to do with the photos post capture. If you primarily shoot photos to email, text, or upload to social media, then stick with JPG capture. You can still do some on phone editing and share with family and friends while saving space on your phone.
If, however, you are like me, a photography geek who enjoys editing high resolution photos in Lightroom and making prints, then your best bet is to use RAW capture.
The upshot, the Icon allows you to capture in both DNG and JPG. So, if you want to play around with both you can. Once you determine which type of image capture you like and suits your needs, you can stick with that mode and snap on.
To put it simply, RAW is the unprocessed, "lossless" image file format. The data is read off the sensor and saved in a file that is read by most, if not all RAW image processing apps, such as Adobe Lightroom, Apple Aperture, etc. It first was introduced in DSLR and medium format SLR cameras. It gave professional photographers the ability to edit photos post capture in a non-destructive way; meaning any changes can be undone or changed again without affecting image quality. Of course, camera makers have proprietary RAW formats, CR2 (Canon), NEF (Nikon), etc. Enter the Adobe DNG standard. Adobe introduced the DNG, or digital negative format in Sep 2004. The intent was to provide an open standard for all still image capture. However, the major camera makers like Canon, Nikon, and a few others, continue to manufacture cameras using their own proprietary RAW formats. Several other camera makers though, have adopted DNG as their RAW capture format. Currently all DSLR, medium and large format cameras, and a select few point and shoot cameras and (to my knowledge) only three smart phones allow you to capture images in RAW format. The three smart phones, all Nokia models, are the Lumia 1020, 1520, and Icon.
The JPG or JPEG format has been around for decades. It was designed to send efficiently send and receive image files via electronic means and by far the most used image file type. The JPG format is a "lossy" format meaning every time you open the file, edit it, and save it, you are degrading the image quality. Over time as the file is reopened and saved, you will see a noticeable degradation in quality. Additionally, you can increase compression to reduce file size; which degrades image quality. The higher the compression the lower the quality. Additionally, since it is a destructive format, any changes made to the image are permanent and once saved cannot be undone. All digital cameras allow you to capture images in the JPG format; and depending on camera/phone model you can change image quality and compression levels.
So enough with the history lesson and let’s answer the question, “So why should you as a Lumia Icon user care? A photo is a photo right?” Well...yes…and…no.
There are some advantages and disadvantages to each format and they pretty much depend on your photo needs and what you intend to do with them.
Let’s start with RAW image capture.
RAW Image capture advantages:
- Greater post capture image editing options. Since RAW is non-destructive and lossless, you can make changes to your heart’s content without fear of permanently changing the original file. Any changes you make can be zeroed out and you can start from scratch. You also have the ability to change WB, exposure, saturation, sharpening, noise reduction etc. For example, Adobe Lightroom allows you to increase or decrease the exposure by up to 3 stops. Very handy for slightly over or under exposed photos.
- You can export into any image file format that your RAW processing app supports; TIFF, JPG, PNG, whatever.
- As RAW image processing apps improve, you can go back and reprocess the original file using newer algorithms. Even if it was taken 10 years ago. As long as it was shot in RAW, you can still edit it in modern RAW image processing apps.
RAW Image capture disadvantages:
- Larger image files. The DNG file on the Icon is a 20MB file. Since the phone is fixed 32GB, minus app storage and other files, your phone’s storage can fill up real quick.
- The need for a third party RAW image app such as Lightroom or Aperture. Currently, there are no WP apps that allow you to process RAW files on the phone (though Photoshop Express is coming to WP soon). Therefore, you have to download the images to a computer (Windows, Mac, or Linux) before converting to JPG using a RAW image conversion app.
- Cannot upload directly to social media, send via MMS. You must convert to JPG first.
Now let’s talk JPG.
JPG Image capture advantages:
- Files are much smaller, half the size or smaller. With fixed 32GB of storage this can make a difference. This also allows you to auto upload to OneDrive without putting a huge dent in your data plan.
- You can upload the file directly to social media and send via MMS to other people without having to convert the image.
- Plenty of image editing apps for the phone, such as Nokia Glam Me or 4Blend HDR. You can make basic edits on phone.
JPG Image capture disadvantages:
- Limited post capture image editing options. The white balance, exposure, etc., is set by the camera and cannot be changed post capture.
- Because JPG is a lossy, destructive file type. Any edits you do are permanent, and you can’t change it back once you saved the file. Additionally, increased file compression will degrade the image quality the more you compress it.
So what format should you use?
Well… that depends on your needs and what you intend to do with the photos post capture. If you primarily shoot photos to email, text, or upload to social media, then stick with JPG capture. You can still do some on phone editing and share with family and friends while saving space on your phone.
If, however, you are like me, a photography geek who enjoys editing high resolution photos in Lightroom and making prints, then your best bet is to use RAW capture.
The upshot, the Icon allows you to capture in both DNG and JPG. So, if you want to play around with both you can. Once you determine which type of image capture you like and suits your needs, you can stick with that mode and snap on.
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