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10/26/2005 10:10:07 AM · #1 |
I have tried searching but it returned an error message...but...
I've read that for competitions your images are checked for the date they're taken with the camera. How does that work since once I've cropped and altered the levels on a photo it's a new photo, or are we not allowed to crop for these compos? |
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10/26/2005 10:12:20 AM · #2 |
The date on the original photo before cropping is what is used for verification. Cropping is allowed for the challenges.
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10/26/2005 10:13:20 AM · #3 |
The date is not automatically checked, but if someone requests a DQ on your photo or if you end up being in the top 10, DPC will need to check your original photo and the EXIF data that it has. It's important to always keep your original shot and only do edits on a copy of the photo.
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10/26/2005 10:15:20 AM · #4 |
| i am new to computers but i hope this answer helps you. even after you fix a picture -the original date and time does not change for when the photo was taken. use your mouse and just let the arrow rest on top of your picture and this will show you the date and time. i know this works on my computer. now it is freaky how dp challenge can read this info off apicture kinda like big brother watching you. |
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10/26/2005 10:18:46 AM · #5 |
Originally posted by melodee:
i am new to computers but i hope this answer helps you. even after you fix a picture -the original date and time does not change for when the photo was taken. use your mouse and just let the arrow rest on top of your picture and this will show you the date and time. i know this works on my computer. now it is freaky how dp challenge can read this info off apicture kinda like big brother watching you. |
That's a different date/time stamp to the one that's used for validating the photo. That date/time you're seeing is the date of the file itself (the date it was created or modified on your hard disk)
The date/time used for validating the image is stored in the EXIF data, this is a small piece of text that the camera stores in the JPG every time it takes a photo.
Normally, if you edit and save a JPG it loses this EXIF data. This is how some shots end up getting disqualified, as the person didn't keep an original untouched copy of the file directly from the camera.
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10/26/2005 10:23:33 AM · #6 |
Originally posted by melodee:
i am new to computers but i hope this answer helps you. even after you fix a picture -the original date and time does not change for when the photo was taken. use your mouse and just let the arrow rest on top of your picture and this will show you the date and time. i know this works on my computer. now it is freaky how dp challenge can read this info off apicture kinda like big brother watching you. |
Actually the EXIF data is useful to photographers in recording and later reviewing the shutter speed, aperature, iso, and other settings. It beats taking a notebook to record these settings for each photograph.
If I see a photograph someone has taken it is very helpful for me see the aperature, shutter speed, focal length used. |
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10/26/2005 10:35:58 AM · #7 |
That's all great but my camera takes photos as jpgs nad doesn't store all that information, does this mean that I can't enter compos?
My mistake, it does include the date. Oops, was looking in the wrong place.
Message edited by author 2005-10-26 10:37:26. |
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10/26/2005 10:54:44 AM · #8 |
EXIF contains two date fields - one for the image capture, and one for the last modified date. It also records the camera and the software that editied the file.
If you use Save For Web in photoshop, then the EXIF info is removed from the file. |
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