 Linda Carpenter |
Jpg in Camera I have sort of a series of questions 1. If I take a photo in Jpg and download it into my computer as Jpg, Has it lossed quality now once or twice? 2. If I take photo in Jpg and directly download it to TFF, have I lossed any qulity at all? 3. Does a photo loose quality simpy by taking it to start with in Jpg? Thank you LindaCC
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Steven Chaitoff |
Linda, I'm actually not positive about my response here, but if I'm wrong about anything other people will correct me: When you set your camera to JPG the camera gathers the picture from the sensor, then it compresses it -- so that's a loss of quality -- and then saves that compressed version. So in answer to your question 3, yes. Before the camera even saves the picture onto the card, it throws out some info to reduce file size. On the other hand in answer to question 1, the beauty of digital files is that they are 100 percent fidelity so you can transfer the data as many times as you want without any data loss. So when you transfer the shots from the camera to the computer, as long as you don't mess with the data and just move it, I believe there will be no additional loss in quality. As for changing the format into TIFF, I'm not so sure. Because in this case you have to output the data and then reevaluate it, you will lose some info in the process (not unlike copying a videotape.) But I cannot say how much actual "quality" you will lose. TIFF is a high-quality format, but you can only work with however much data you have with the original JPG. All I can say is that if you save as JPG and then convert to TIFF, you are rearranging the original original data (right off the sensor) twice so that makes two data losses.
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Vince Broesch |
Just one thing, changing the jpeg to tiff would not cause a loss of quality, but as said, some quality was already lost by saving as jpeg in the first place. Some people will change the jpeg to tiff however, so that they can edit-save without further loss of quality on each edit-save cycle. Vince
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Bonnie Smith |
Hi- am brand new to digital and this board. Very interested in this topic. How/where can I ask the question of HOW to copy from jpeg (in my camera) to TIFF?? I don't see it in my Panasonic camera's software.. thanks for any help/direction on this. Learner365
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