GHK
TPF Noob!
- Joined
- Mar 11, 2016
- Messages
- 34
- Reaction score
- 2
- Can others edit my Photos
- Photos OK to edit
In digital photography editing is ESSENTIAL. The concept of 'getting it right first time' with a digital camera is really meaningless.
The image which is recorded on the sensor is a RAW image; it is called that for obvious reasons.
You normally have two options as to how your images will be saved on your camera card, RAW or JPEG (maybe both).
If you choose JPEG the image from the sensor will be EDITED (using software that is built in to the camera) before it is saved.
If you choose RAW the sensor image will be saved directly to the card without editing. (It has to be rendered into a RAW saving format, which is usually
specific to the manufacturer, and, often, to the camera model itself but it is not subjected to anything that would constitute editing as normally understood).
So, the JPEG has already been edited before you ever open it by something foisted upon you with giving you any say in the matter. It is hardly surprising that
JPEGs, almost invariably, will benefit from further editing, done by you and, most importantly, under your control.
The situation with a saved RAW is quite different. Not only has it not been edited, it is not fit for purpose. If you were to see a raw image (it is not at all easy to do this) you would probably dismiss it as totally useless. RAW images are completely different their nature from such as JPEG, PSD, TIFF, etc. all of which
were invented by humans specifically to have responses which correspond to those of the human visual system; (film has similar responses).
In RAW images the relationship between the exposure and the density of the image is described as linear.
In all the other cases mentioned the relationship is described as exponential or logarithmic (two ways of saying basically the same thing).
When you open a RAW image into Adobe Camera Raw, what you see is not the RAW image. During the opening process the linear image is converted to the exponential PSD format; this is, of course, a form of editing, but there is no further 'enhancement' of the type which is involved in JPEG saving.
This is whythe JPEG may well look better at this stage than the opened RAW. You will now go on to edit the image in ACR. It will not be obvious, but your changes will be made to the linear RAW image although they will only be seen in the exponential display. The RAW image will still retain its linear format.
After editing the image should be opened into Photoshop (when further beneficial editing can be done) and saved as a true PSD. Further changes can still, of course, be made later.
GHK
The image which is recorded on the sensor is a RAW image; it is called that for obvious reasons.
You normally have two options as to how your images will be saved on your camera card, RAW or JPEG (maybe both).
If you choose JPEG the image from the sensor will be EDITED (using software that is built in to the camera) before it is saved.
If you choose RAW the sensor image will be saved directly to the card without editing. (It has to be rendered into a RAW saving format, which is usually
specific to the manufacturer, and, often, to the camera model itself but it is not subjected to anything that would constitute editing as normally understood).
So, the JPEG has already been edited before you ever open it by something foisted upon you with giving you any say in the matter. It is hardly surprising that
JPEGs, almost invariably, will benefit from further editing, done by you and, most importantly, under your control.
The situation with a saved RAW is quite different. Not only has it not been edited, it is not fit for purpose. If you were to see a raw image (it is not at all easy to do this) you would probably dismiss it as totally useless. RAW images are completely different their nature from such as JPEG, PSD, TIFF, etc. all of which
were invented by humans specifically to have responses which correspond to those of the human visual system; (film has similar responses).
In RAW images the relationship between the exposure and the density of the image is described as linear.
In all the other cases mentioned the relationship is described as exponential or logarithmic (two ways of saying basically the same thing).
When you open a RAW image into Adobe Camera Raw, what you see is not the RAW image. During the opening process the linear image is converted to the exponential PSD format; this is, of course, a form of editing, but there is no further 'enhancement' of the type which is involved in JPEG saving.
This is whythe JPEG may well look better at this stage than the opened RAW. You will now go on to edit the image in ACR. It will not be obvious, but your changes will be made to the linear RAW image although they will only be seen in the exponential display. The RAW image will still retain its linear format.
After editing the image should be opened into Photoshop (when further beneficial editing can be done) and saved as a true PSD. Further changes can still, of course, be made later.
GHK