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Thread: Focal Length In Exif Reader

  1. #1

    Default Focal Length In Exif Reader

    Sorry, this has been asked b4 but cant find it...
    Is the focal length shown on the exif reader the true focal length of the lenses or the 35mm equivalent focal length after considering the crop factor?

  2. #2

    Default Re: Focal Length In Exif Reader

    For canon DSLRs it shloud be the acutal length in 35mm terms.
    Furry Photos - Photography for the Modern Pet

  3. #3

    Default Re: Focal Length In Exif Reader

    For Nikon cameras, the 35mm equilivent would be reflected

  4. #4

    Default Re: Focal Length In Exif Reader

    For my opanda EXIF viewer, it shows both actual and 35mm format equivalent focal length for my Nikon 5700 pictures.

    Under properties in Windows XP, it only show the actual focal length.

    So I guess it depends on what EXIF reader you use. I think it should show at least the actual focal length.

  5. #5

    Default Re: Focal Length In Exif Reader

    Yeah, the opanda exif shows both lens focal length & 35mm equivalent for pics taken by my prosumer Nikon 8400 but I'm looking at pics taken by canon DSLR, only focal length is shown...

    So based on Ipin & Raptor's info, the focal length stated for both Nikon & Canon DSLRs is the 35mm equivalent?

    Reason why I'm so particular cos I'm trying to decide wat lens to get

  6. #6

    Default Re: Focal Length In Exif Reader

    Quote Originally Posted by ipin View Post
    For Nikon cameras, the 35mm equilivent would be reflected
    Ipin, I'm using the Opanda IEXIF 2 but it shows only the actual focul length for my D80, not the 35mm equivalent. which cam & Opanda version u using?

  7. #7

    Default Re: Focal Length In Exif Reader

    just download the latest v2.26

  8. #8
    Senior Member zoossh's Avatar
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    Default Re: Focal Length In Exif Reader

    XP shows the actual focal length for nikon D50, olympus, casio and minolta compact. so far did not come across any with 35mm equivalents calculated for you.

  9. #9
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    Default Re: Focal Length In Exif Reader

    Quote Originally Posted by kzone View Post
    Ipin, I'm using the Opanda IEXIF 2 but it shows only the actual focul length for my D80, not the 35mm equivalent. which cam & Opanda version u using?
    it actually shows 35mm equiv as well if you do scroll down

  10. #10

    Default Re: Focal Length In Exif Reader

    I did scroll down... maybe i missed it? Here's a sample data..

    [Image]
    Make = NIKON CORPORATION
    Model = NIKON D80
    Orientation = top/left
    X Resolution = 300
    Y Resolution = 300
    Resolution Unit = inch
    Software = PictureProject 1.0.0 W
    Date Time = 2007-02-24 09:12:24
    YCbCr Positioning = centered
    Exif IFD Pointer = Offset: 222

    [Camera]
    Exposure Time = 1/10"
    F Number = F4.8
    Exposure Program = Manual
    ISO Speed Ratings = 250
    Exif Version = Version 2.21
    Date Time Original = 2007-02-20 13:08:34
    Date Time Digitized = 2007-02-20 13:08:34
    Components Configuration = YCbcr
    Exposure Bias Value = ±0EV
    Max Aperture Value = F4.59
    Metering Mode = Pattern
    Light Source = unknown
    Flash = Off
    Focal Length = 46mm
    Maker Note = 3410 Byte
    User Comment =
    Subsec Time = 0.80"
    Subsec Time Original = 0.80"
    Subsec Time Digitized = 0.80"
    Flashpix Version = Version 1.0
    Color Space = sRGB
    Exif Image Width = 3872
    Exif Image Height = 2592
    Sensing Method = One-chip color area sensor
    File Source = DSC
    Scene Type = A directly photographed image
    CFA Pattern =

    [Thumbnail Info]
    Compression = JPEG Compressed (Thumbnail)
    X Resolution = 300
    Y Resolution = 300
    Resolution Unit = inch
    JPEG Interchange Format = Offset: 4322
    JPEG Interchange Format Length = Length: 1820

    [Thumbnail]
    Thumbnail = 160 x 107

    [MakerNote (Nikon)]
    Makernote Version = 0200
    ISO Speed Used = 250
    Colour Mode = COLOR
    Quality = NORMAL
    White Balance = AUTO
    Sharpening = AUTO
    Focus Mode = AF-S
    White Balance Bias Value = 0
    White Balance Red, Blue Coefficients = 173046875/100000000, 2/1, 1/1, 1/1
    000D = 00, 01, 06, 00
    Exposure Diff = 03, 01, 0C, 00
    ThumbOffset = 3404
    ISO Speed Requested = 250
    0017 = 00, 01, 06, 00
    Flash Bracket Compensation Applied = 00, 01, 06, 00
    AE Bracket Compensation Applied = 0EV
    Tone Compensation (Contrast) = AUTO
    Lens Type = Nikon G series Lens
    Lens Min/Max Focal Length, Max Aperture = 18/1, 200/1, 35/10, 56/10
    Flash Used = Flash Not Used
    Auto Focus Area = 00, 00, 00, 01
    Bracketing & Shooting Mode = 0
    008A = 2
    008B = 40, 01, 0C, 00
    Colour Mode = MODE1a
    Lighting Type = NATURAL
    Hue Adjustmen = 0
    Noise Reduction = OFF
    009A = 605/100, 605/100
    00A2 = 1615360
    00A3 = 0
    Total Number of Shutter Releases for Camera = 29
    Image optimisation = NORMAL
    Digital Vari-Program =

  11. #11

    Default Re: Focal Length In Exif Reader

    Mine is as follow:

    [Image]
    Make = NIKON CORPORATION
    Model = NIKON D80
    Orientation = top/left
    X Resolution = 300
    Y Resolution = 300
    Resolution Unit = inch
    Software = PictureProject 1.7 W
    Date Time = 2006-11-18 22:33:26
    YCbCr Positioning = centered
    Exif IFD Pointer = Offset: 220

    [Camera]
    Exposure Time = 1/125"
    F Number = F11
    Exposure Program = Manual
    ISO Speed Ratings = 100
    Exif Version = Version 2.21
    Date Time Original = 2006-11-18 10:56:13
    Date Time Digitized = 2006-11-18 10:56:13
    Components Configuration = YCbcr
    Exposure Bias Value = ±0EV
    Max Aperture Value = F1.74
    Metering Mode = Pattern
    Light Source = unknown
    Flash = Off
    Focal Length = 85mm
    Maker Note = 2564 Byte
    User Comment = Photo by BC Lee
    Subsec Time = 0.90"
    Subsec Time Original = 0.90"
    Subsec Time Digitized = 0.90"
    Flashpix Version = Version 1.0
    Color Space = sRGB
    Exif Image Width = 2592
    Exif Image Height = 3872
    Interoperability IFD Pointer = Offset: 834
    Sensing Method = One-chip color area sensor
    File Source = DSC
    Scene Type = A directly photographed image
    CFA Pattern = [G,B],\r\n[R,G]
    Custom Rendered = Normal process
    Exposure Mode = Manual exposure
    White Balance = Auto white balance
    Digital Zoom Ratio = 1x
    Focal Length In 35mm Film = 127mm
    Scene Capture Type = Normal
    Gain Control = None
    Contrast = Normal
    Saturation = Normal
    Sharpness = Soft
    Subject Distance Range = unknown

    [GPS]

    [Interoperability]
    Interoperability Index = ExifR98
    Interoperability Version = Version 1.0

    [Thumbnail Info]
    Compression = JPEG Compressed (Thumbnail)
    X Resolution = 72
    Y Resolution = 72
    Resolution Unit = inch
    JPEG Interchange Format = Offset: 3626
    JPEG Interchange Format Length = Length: 9231

    [Thumbnail]
    Thumbnail = 120 x 160

    [MakerNote (Nikon)]
    ...

    Using Opanda IExif 2.26

    BC
    Last edited by Scaglietti; 26th February 2007 at 02:39 PM.

  12. #12
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    Default Re: Focal Length In Exif Reader

    my d50 shows somewhat the same as Scaglietti

  13. #13
    Senior Member zoossh's Avatar
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    Default Re: Focal Length In Exif Reader

    Quote Originally Posted by ExplorerZ View Post
    it actually shows 35mm equiv as well if you do scroll down
    does it?


  14. #14

    Default Re: Focal Length In Exif Reader

    That is not the full data. Use Exif readers like the Opanda IExif to read Exif data that are not normally displayed, e.g. shutter counts.

    BC

  15. #15
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    Default Re: Focal Length In Exif Reader

    Quote Originally Posted by zoossh View Post
    try Opanda... even my Pana PnS fz5 have it

    [Image]
    Make = Panasonic
    Model = DMC-FZ5
    Orientation = top/left
    X Resolution = 72
    Y Resolution = 72
    Resolution Unit = inch
    Software = Adobe Photoshop CS2 Windows
    Date Time = 2006-01-08 15:42:49
    YCbCr Positioning = co-sited
    Exif IFD Pointer = Offset: 436
    PrintIM Data = 208 Byte

    [Camera]
    Exposure Time = 1/5"
    F Number = F3.2
    Exposure Program = Manual
    ISO Speed Ratings = 200
    Exif Version = Version 2.2
    Date Time Original = 2006-01-07 21:12:20
    Date Time Digitized = 2006-01-07 21:12:20
    Components Configuration = YCbcr
    Compressed Bits Per Pixel = 4
    Exposure Bias Value = 0EV
    Max Aperture Value = F2.83
    Metering Mode = Pattern
    Light Source = Tungsten (incandescent light)
    Flash = Flash did not fire, compulsory flash mode
    Focal Length = 6mm
    Flashpix Version = Version 1.0
    Color Space = sRGB
    Exif Image Width = 2560
    Exif Image Height = 1920
    Interoperability IFD Pointer = Offset: 936
    Sensing Method = One-chip color area sensor
    File Source = DSC
    Scene Type = A directly photographed image
    Custom Rendered = Normal process
    Exposure Mode = Manual exposure
    White Balance = Manual white balance
    Digital Zoom Ratio =
    Focal Length In 35mm Film = 36mm
    Scene Capture Type = Normal
    Gain Control = Low gain up
    Contrast = Normal
    Saturation = Normal
    Sharpness = Normal

    [Interoperability]
    Interoperability Index = ExifR98
    Interoperability Version = Version 1.0

    [Thumbnail Info]
    Compression = JPEG Compressed (Thumbnail)
    X Resolution = 72
    Y Resolution = 72
    Resolution Unit = inch
    JPEG Interchange Format = Offset: 1062
    JPEG Interchange Format Length = Length: 6007

    [Thumbnail]
    Thumbnail = 160 x 120

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