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DPChallenge Forums >> General Discussion >> EXIF Data?
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 10/18/2008 12:41:43 AM · #1
What is this and how do I know if my camera supports it?? I want to participate in the challenges but not sure about EXIF Data.
 10/18/2008 12:44:47 AM · #2
Yes, your camera supports it. It is extra, non-image data written to the file which records the date, exposure info, etc. Use an image viewer such as IrfanView (PC) to look at it, or if you are running Vista (and maybe XP) you can accesses it through the file's Properties. I forget what you use to read it on a Mac.

Here's an example of what one of my cameras records:

File: IMG_5866.JPG

Make - Canon
Model - Canon PowerShot S3 IS
Orientation - Top left
XResolution - 180
YResolution - 180
ResolutionUnit - Inch
DateTime - 2008:10:08 15:55:03
YCbCrPositioning - Centered
ExifOffset - 196
ExposureTime - 1/200 seconds
FNumber - 7.10
ExifVersion - 0220
DateTimeOriginal - 2008:10:08 15:55:03
DateTimeDigitized - 2008:10:08 15:55:03
ComponentsConfiguration - YCbCr
CompressedBitsPerPixel - 5 (bits/pixel)
ShutterSpeedValue - 1/202 seconds
ApertureValue - F 7.10
ExposureBiasValue - 0.00
MaxApertureValue - F 2.71
MeteringMode - Center weighted average
Flash - Not fired, compulsory flash mode
FocalLength - 6.00 mm
UserComment -
FlashPixVersion - 0100
ColorSpace - sRGB
ExifImageWidth - 2816
ExifImageHeight - 2112
InteroperabilityOffset - 2772
FocalPlaneXResolution - 12515.56
FocalPlaneYResolution - 12497.04
FocalPlaneResolutionUnit - Inch
SensingMethod - One-chip color area sensor
FileSource - DSC - Digital still camera
CustomRendered - Normal process
ExposureMode - Auto
WhiteBalance - Auto
DigitalZoomRatio - 1.00 x
SceneCaptureType - Standard

Maker Note (Vendor): -
Macro mode - Normal
Self timer - Off
Quality - Superfine
Flash mode - Not fired
Sequence mode - Single or Timer
Focus mode - Single
Image size - Large
Easy shooting mode - Manual
Digital zoom - None
Contrast - Normal
Saturation - Normal
Sharpness - Normal
ISO Value - 16464 (other)
Metering mode - Center weighted
Focus type - Auto
AF point selected -
Exposure mode - Tv-priority
Focal length - 600 - 7200 mm (100 mm)
Flash activity -
Flash details -
Focus mode 2 - Single
White Balance - Auto
Sequence number - 0
Flash bias - 0.00 EV
Subject Distance - 423
Image Type - IMG:PowerShot S3 IS JPEG
Firmware Version - Firmware Version 1.00
Image Number - 1035866
Owner Name - PMarcus©POB4653Berkeley,CA94704

Message edited by author 2008-10-18 00:50:31.
 10/18/2008 01:03:40 AM · #3
Originally posted by GeneralE:
. I forget what you use to read it on a Mac.



You can use either Preview or iPhoto, or Finder will show you a limited amount of information.

iPhoto: cmd-click and select "view photo information".

Preview: cmd-I, go to the middle "tab" (it has a speech bubble on it) and there's an option that says "EXIF".

Finder: cmd-click, select "Get Info", and click down the arrow next to "More Info". This, oddly, gives you everything (including the color profile and the focal length) except the ISO.

ColorSync Profile won't give you EXIF. I find this odd as well.
 10/18/2008 01:10:49 AM · #4
You can view it with Graphic Converter App on a Mac as well. The older 0SX came with G C.
10/19/2008 03:44:03 PM · #5
Thanks for the help. Also I saw your file was a jpg, so I dont have to shoot in a specific format such as RAW correct?
 10/19/2008 04:28:09 PM · #6
Originally posted by renblade20:
Thanks for the help. Also I saw your file was a jpg, so I dont have to shoot in a specific format such as RAW correct?

Correct. Whatever format you shoot in, remember that if you are required to submit a proof file, you need to submit the original file from the camera. If you shot RAW, submit the RAW. The only exception is if you shoot RAW+JPEG and process your entry from the RAW file, the JPEG that the camera wrote *is* a valid original.
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