Shooting Distance how too (1 Viewer)

How can I check the shooting distance I took the image at in DPP or Adobe Photoshop Elements 6.
I thought at one time I read this but cannot remember how I did it.

All help gratefully accepted

File, File info - should open up the metadata for the shot.

Carl

carlj said:

File, File info - should open up the metadata for the shot.

Carl

Click to expand...

I know that carl, but it don't tell you the distance you shot the image at,
from lens to subject. Sure I have seen this somewhere....

Terry, when the info is open, click on camera data 1 - shows the lens focal length.

Carl

[editmodeon] When you've had too little sleep, and been running around shooting a christening, wait, read and make sure you know what the question is, before you answer [/editmodeoff]

The camera doesn't record or even measure this info, so why should it be in the exif?

The lens measures this distance between 0 and infinity when you take a shot, I just thought somewhere you could extract his information ?

As Carl says the focal length is shown in file>file info>camera data 1 or in metadata in bridge or in zoombrowser so I'd guess it displays in any package that can display the exif. I seem to remember that a couple of sigma lenses didn't display the correct focal length but it seems to work with all my Canon lenses

Since when did focal length have anything to do with shooting distance ?

Stephen Fletcher said:

Since when did focal length have anything to do with shooting distance ?

Click to expand...

Good Point:king:

Stephen Fletcher said:

Since when did focal length have anything to do with shooting distance ?

Click to expand...

Correct Correct Correct.....

Is this information recorded anywhere (Shooting Distance) besides on the lens itself.

Nikon Kid said:

Correct Correct Correct.....

Is this information recorded anywhere (Shooting Distance) besides on the lens itself.

Click to expand...

Yes and no.

It depends on the camera and the program reading the Exif data.

First of all in the Exif file it's called "Subject distance range".
Second not all cameras generate this data.
Third not all Exif sofware reads it.

This kind of data is stored in a non-standard section of the Exif data called "Manufacturer notes" and not all manufactures use it for all their camera bodies.
In this section can be found such obscure stuff as how many times the shutter has been released and if the camera body has been serviced and serial number and manufacturing date.

The program that tries to read all Exif data is called PhotoME. It's free. Give it a try and see what it show. If what you want does not show in PhotoME it's a good chance the camera body is not generating this data in the first place.

Thanks for the information on Photome, just downloaded nice little programme reads raw and jpeg and maybe more file extensions ?

At first look cannot find a camera setting in photome that says Shooting Distance.
Anyone tell me where the shutter release amount of times used in photome.

Like some others I cannot understand what is meant by shooting distance - distance implies to points between which a measurement is taken.

Without some in-built system - eg, laser range finder - how would the camera "know" what it was measuring and how would it do it?

You might argue it might measure to the focus but how would that be acheived in, for instance, a landscape when the mountain (or whatever) in the distance is so far away that you would need some humungous laser to measure that?

cheers
Gordon

Gordon said:

Like some others I cannot understand what is meant by shooting distance - distance implies to points between which a measurement is taken.

Without some in-built system - eg, laser range finder - how would the camera "know" what it was measuring and how would it do it?

You might argue it might measure to the focus but how would that be acheived in, for instance, a landscape when the mountain (or whatever) in the distance is so far away that you would need some humungous laser to measure that?

cheers
Gordon

Click to expand...

BTW, Your Mountain would be infinity

My 400mm lens measures focus from 3.5m to 20m and infinity (basically I was interested in this measurement for my own use)

This is what Canon says

Shooting distance (camera distance)

The distance from the film plane (focal plane) to the subject. The position of the film plane is indicated on the top of most cameras by a special symbol

Nikon Kid said:

Thanks for the information on Photome, just downloaded nice little programme reads raw and jpeg and maybe more file extensions ?

At first look cannot find a camera setting in photome that says Shooting Distance.
Anyone tell me where the shutter release amount of times used in photome.

Click to expand...

Don't assume your camera is generating such data in the first place.

Depends on the make and model. For instance, in general a low priced Nikon will generate a much abbreviated Exif file compared to a $5000 full frame Nikon.

Here's a pretty compete download of my Pentax K20D:

[PhotoME]
PhotoME version: 0.79R17 (Build 856)

[Overview]
File name: F:\Archive Pics Not Birds Sept 21 2008\Nature\Butterflys\IMGP0922.JPG
File type: JPEG
File size: 12,291.1*KB
Creation date: 10/6/2008 15:35
Last modification: 10/6/2008 16:36
Make: PENTAX Corporation (http://www.pentax.com)
Camera: PENTAX K20D
Lens: smc PENTAX-FA 35mm F2 AL
Software: K20D Ver 1.00
Dimension: 4672 x 3104*px*(14.5 MP, 3:2)
Focal length: 35*mm*(equiv. 52*mm)
Aperture: F4
Exposure time: 1/4000" (-1*EV)
ISO speed rating: 1600/33°
Program: Aperture Priority
Metering Mode: Pattern
White Balance: Auto (Cloudy)
Focus Mode: AF-S
Image Stabilizer: stabilized
Noise Reduction: Off
Flash: Flash did not fire, compulsory flash mode

[Image]
Manufacturer: PENTAX Corporation
Image input equipment model: PENTAX K20D
Orientation of image: 0° (top/left)
Image resolution in width direction: 72*dpi
Image resolution in height direction: 72*dpi
Unit of X and Y resolution: inch
Software: K20D Ver 1.00
File change date and time: 2008-10-06 15:35:54
Y and C positioning: Co-Sited
Exif IFD Pointer: 0x00000256
PRINT Image Matching: 0x000000F6

[Thumbnail Info]
Compression scheme: JPEG (old-style)
Image resolution in width direction: 72*dpi
Image resolution in height direction: 72*dpi
Unit of X and Y resolution: inch
Offset to JPEG SOI: 0x0000D488
Bytes of JPEG data: 8118*bytes

[Camera]
Exposure time: 1/4000"
F number: F4
Exposure program: Aperture priority
ISO speed rating: 1600/33°
Exif version: Version 2.21
Date and time of original data generation: 2008-10-06 15:35:54
Date and time of digital data generation: 2008-10-06 15:35:54
Meaning of each component: YCbCr
Exposure bias: -1*EV
Metering mode: Pattern
Flash: Flash did not fire, compulsory flash mode
Lens focal length: 35*mm
Manufacturer notes: 0x0000040C
Supported Flashpix version: Version 1.0
Color space: sRGB
Image width: 4672*px
Image height: 3104*px
Interoperability IFD Pointer: 0x0000D40C
Sensing method: One-chip color area sensor
File source: Digital Camera
Scene type: A directly photographed image
Custom image processing: Normal process
Exposure mode: Manual exposure
White balance: Auto
Focal length in 35 mm film: 52*mm
Scene capture type: Standard
Contrast: Soft
Saturation: Low saturation
Sharpness: Hard
Subject distance range: Macro

[Manufacturer notes]
Pentax Version: 41.2.0
Pentax Model Group: Group 1 (DSLR series & Various Optio models)
Preview Image Size: 640 x 480
Preview Image Length: 17398*bytes
Preview Image Start: 0x0000159C
Pentax Model: K20D
Date: 2008-10-06
Time: 15:35:54
Quality: Premium
Flash Mode: Off; Internal
Focus Mode: AF-S
AF Point Selected: Fixed Center
Exposure Time: 1/4000"
F Number: F4
ISO: 1600/33°
Exposure Compensation: -1
Metering Mode: Multi-segment
Auto Bracketing: 0 EV, No Extended Bracket
White Balance: Auto
White Balance Mode: Auto (Cloudy)
Focal Length: 35*mm
Saturation: Low
Contrast: Low
Sharpness: Hard
World Time Location: Hometown
Hometown City: Chicago
Destination City: Chicago
Hometown DST: No
Destination DST: No
DSP Firmware Version: Ver 1.00.00.01
CPU Firmware Version: Ver 1.00.00.01
Effective LV: 11*LV
Image Processing: Unprocessed
Picture Mode: Aperture Priority; 1/3*EV steps
Drive Mode: Continuous (Hi); No Timer; Shutter Button; Single Exposure
Color Space: sRGB
??? (003D): 8192
Preview Image Borders: top = 28, bottom = 28, left = 0, right = 0
Lens ID: 4*+*28*+*0
Pentax Lens Type: FA, FAJ, DFA or DA
Lens Name(s) of the ID: smc PENTAX-FA 35mm F2 AL
Sensitivity Adjust: ±0
Image Processing Count: 0
Camera Temperature: 25*°C
AE Lock: Off
Noise Reduction: Off
Flash Exposure Compensation: ±0
Image Tone: Natural
Color Temperature: Not set
SR Result: stabilized
Shake Reduction (Setup): 7
Shutter Release Half Press Time: 1.48*sec
SR Focal length: 35*mm
Shutter Count: 11372
??? (0062): 3
??? (0067): 1
??? (0068): 1
Dynamic Range Expansion: Off
??? (0070): 0
High ISO Noise Reduction: Off
AF Adjustment: ±0
??? (0073): 65535
??? (0074): 65535
Black Point: [0, 0, 0, 0]
White Point: [14848, 8192, 8192, 9568]
Picture Mode 2: Aperture Priority
Program Line: Normal
EV Steps: 1/3 EV steps
E-Dial In Program: Tv or Av
Aperture Ring Use: Permitted
Flash Options: Normal
Metering Mode (2): Multi-segment
AF Point Mode: Fixed Center
Focus Mode 2: AF-S
AF Point Selected 2: 32
ISO Floor: 1600/33°
Drive Mode 2: Bit 2?
Exposure Bracket Step Size: 0.7
Bracket Shot Number: n/a
White Balance Set: Auto
Multiple Exposure Set: Off
??? (0205): 0
??? (0205): 97
??? (0205): 128
AE Exposure Time: Maximal
AE Aperture: Not set
AE ISO: 1600/33°
AE Xv: +1*EV
AEB Xv: ±0*EV
AE Min. Exposure Time: Not available
AE Program Mode: Av, B or X
AE Extra?: 0
??? (0206): 18
AE Max. Aperture: F1
AE Max. Aperture (2): F1
AE Min. Aperture: F22
AE Metering Mode: Multi-segment
??? (0206): 64
Flash Exposure Comp. Set: ±0*Ev
??? (0206): 128
Lens Name: smc PENTAX-FA 35mm F2 AL
Pentax Lens Type: FA, FAJ, DFA or DA
Lens ID: 4*+*28
Additional Flags: New LensInfo format? (Bit 7)
Auto Aperture: On
Nominal Aperture Range: F2*-*F22
Lens F-Stops: 7
Lens Kind / Version (LC0): 1 / 8
Lens Data (LC1): 148
Distance Code Data (LC2): Range: 03; Step: 0 (Code: 31; Macro)
K-Value (LC3): 181
Near Distance Abberation Correction Data (LC4): 116
Light Color Aberration Correction Data (LC5): 3
Open Aberration Data (LC6): 16
AF Minimum Actuation Condition Data (LC7): 97
Focal Length (LC8): 35*mm
Nominal AVmin / AVmax (LC9): F2*/*F22
mv' nv' Data (LC10): 82
AVC 1/EXP Data (LC11): 68
mv1 Avminsif Data (LC12): 1
AVmin Data (LC13): F2
UNT_12 UNT_6 Data (LC14): 133
Incorporated Flash Suited END Data (LC15): 251
??? (0207): 255
??? (0207): 255
??? (0207): 255
??? (0207): 28
??? (0207): 3
??? (0207): 116
??? (0207): 4
??? (0207): 15
??? (0207): 0
??? (0207): 85
??? (0207): 5
??? (0207): 116
??? (0207): 5
??? (0207): 77
??? (0207): 0
??? (0207): 0
??? (0207): 0, 0, 0, 0, 0, 0, 0, 0
Flash Status: Off
Internal Flash Mode: Off, Normal
External Flash Mode: Off
Internal Flash Strength: 0
TTL D/A A-ch Up: 0
TTL D/A A-ch Down: 0
TTL D/A B-ch Up: 0
TTL D/A B-ch Down: 0
??? (0208): 150
??? (0208): 150
??? (0208): 136
??? (0208): 0
??? (0208): 0
??? (0208): 0
??? (0208): 0
??? (0208): 0
??? (0208): 0
??? (0208): 0
??? (0208): 0
??? (0208): 0
??? (0208): 0
??? (0208): 0
??? (0208): 0
??? (0208): 0
External Flash Guide Number: Not set
??? (0208): 0x0
External Flash Exposure Comp: Not set (Off or Auto Modes)
External Flash Bounce: Not set
AE Metering Segment 1: 10.4*LV (center)
AE Metering Segment 2: 10.6*LV (center edge)
AE Metering Segment 3: 9.9*LV (upper, mid-right)
AE Metering Segment 4: 11.3*LV (upper, mid-left)
AE Metering Segment 5: 9.9*LV (upper, right)
AE Metering Segment 6: 11*LV (upper, left)
AE Metering Segment 7: 9.5*LV (mid-right)
AE Metering Segment 8: 10.1*LV (mid-left)
AE Metering Segment 9: 9.6*LV (right)
AE Metering Segment 10: 10.3*LV (left)
AE Metering Segment 11: 10.5*LV (lower, mid-right)
AE Metering Segment 12: 9.6*LV (lower, mid-left)
AE Metering Segment 13: 9.1*LV (lower, right)
AE Metering Segment 14: 9.3*LV (lower, left)
AE Metering Segment 15: 10.1*LV (top)
AE Metering Segment 16: 9.5*LV (bottom)
Flash Metering Segments: Not set
Slave Flash Metering Segments: not set
WB RGGB Levels Daylight: [13625, 8192, 8192, 10421]
WB RGGB Levels Shade: [15537, 8192, 8192, 7929]
WB RGGB Levels Cloudy: [14444, 8192, 8192, 9213]
WB RGGB Levels Tungsten: [8742, 8192, 8192, 19333]
WB RGGB Levels Fluorescent D: [18030, 8192, 8192, 9817]
WB RGGB Levels Fluorescent N: [15298, 8192, 8192, 11176]
WB RGGB Levels Fluorescent W: [14274, 8192, 8192, 13895]
WB RGGB Levels Flash: [14444, 8192, 8192, 9817]
Pentax Model: K20D
Manufacture Date?: 2008-01-04
Camera has been serviced?: Serviced bit not set (Value: 2?)
Production ID?: 1
Internal Serial Number?: 11287
Power Source: Body Battery
Battery States: Body Battery: Running Low;*Grip Battery: Empty or Missing
Battery A/D Body No Load: 169*(7.4V, 40%)
Battery A/D Body Load: 162*(7.1V, 29%)
Battery A/D Grip No Load: 1
Battery A/D Grip Load: 1
AF Points Unknown 1?: Center
AF Points Unknown 2?: Center, Bit 13?, Bit 14?, Bit 15?
AF Predictor: +1
AF Defocus: 0
AF Integration Time: 2*ms
??? (021F): 0x1F (31)
??? (021F): 0x1F (31)
AF Points Unknown 3?: Bottom + Center
AF Points In Focus: Center (vertical)
??? (0222): 8323
??? (0222): 8036
??? (0222): 8061
??? (0222): 8348
??? (0222): 8520
??? (0222): 8438
??? (0222): 7987
??? (0222): 7946
WB BA compensation: ±0
WB GM compensation: ±0
??? (03FF): T, Y, Y, U,
Çw, , #Ç, , Ñ"& , K…, , ,  , Ï |"%|, 

[Interoperability]
Interoperability Identification: R98: DCF basic file (sRGB)
Interoperability Version: Version 1.0

[PRINT Image Matching]
PrintIM Version: Version 3.0
??? (0001): 0x00160016
??? (0002): 0x01000000
??? (0003): 0x000000D6
??? (0007): 0x00000000
??? (0008): 0x00000000
??? (0009): 0x00000000
??? (000A): 0x00000000
??? (000B): 0x0000011E
??? (000C): 0x00000000
??? (000D): 0x00000000
??? (000E): 0x00000134
??? (0100): 0x05000000
??? (0101): 0xFF000000
??? (0102): 0x83000000
??? (0103): 0x83000000
??? (0104): 0x83000000
??? (0105): 0x83000000
??? (0106): 0x83000000
??? (0107): 0x80808000
??? (0110): 0x80000000
??? (0200): 0x00000000
??? (0207): 0x00000000
??? (0208): 0x00000000
??? (0209): 0x00000000
??? (020A): 0x00000000
??? (020B): 0x00000144
??? (020D): 0x00000000
??? (0300): 0x05000000
??? (0301): 0xFF000000
??? (0302): 0x83000000
??? (0303): 0x83000000
??? (0306): 0x83000000
??? (0310): 0x80000000

Hi Nikon Kid,
can you explain to me how the camera actually measures the distance?

cheers
Gordon

Gordon said:

Like some others I cannot understand what is meant by shooting distance - distance implies to points between which a measurement is taken.

Without some in-built system - eg, laser range finder - how would the camera "know" what it was measuring and how would it do it?

You might argue it might measure to the focus but how would that be acheived in, for instance, a landscape when the mountain (or whatever) in the distance is so far away that you would need some humungous laser to measure that?

cheers
Gordon

Click to expand...

It does not measure the distance between the lens and the subject it simply measures the amount of movement of the lens elements internally within the lens and this movement corresponds to a particular focus distance.

Len's have been doing this for years. Most lens's have a distance scale on them. A modern lens simply has a chip in it that digitizes this internal lens movement and reports it to the camera body which may or may not incorporate this data into the Exif header of your image file. It all depends on how the lens and camera is chipped.

You could read the distance directly off the barrel of the lens or off the EXif file.

See Pic.

Gordon said:

Hi Nikon Kid,
can you explain to me how the camera actually measures the distance?

cheers
Gordon

Click to expand...

I am not saying the camera measures the distance but the lens does at the focus point, and what I wanted to know if the camera actually could read this and put it on the Exif file.

In the original post I thought I had seen it somewhere, but I must have been dreaming as usual.

EDIT, I should have said some lens measure it on a window on the top like my Canon 400mm f5.6
BTW Ultra light my camera is 50d but the photome is not picking up shutter count ?

Why do you need to know?

Marcus Conway - ebirder said:

Why do you need to know?

Click to expand...

How long is a piece of string :eat:

Just wanted the data for my own use, which was probably useless.

No, I wanted to see how close I was to the minium focus distance on some of my images.