What EXIF fields do I need to evaluate to determine without a doubt if the self-timer function was used when taking the photo? Can you tell if the photo was taken with self-timer? I see that the field is set to 10s but in the example at has a note next to the Self-Timer field: "Self Timer Time : 2 s but was set Off by Shooting Mode: Single Frame" and in my EXIF data the Shooting Mode is indeed set to "Single Frame". Any help would be great.
This is the data from the command line tool:
ExifTool Version Number : 11.40
File Name : DSC_0098.JPG
Directory : C:/Users/Joe/Desktop
File Size : 4.4 MB
File Modification Date/Time : 2019:04:01 13:19:24-04:00
File Access Date/Time : 2019:04:01 13:19:24-04:00
File Creation Date/Time : 2019:04:01 13:19:24-04:00
File Permissions : rw-rw-rw-
File Type : JPEG
File Type Extension : jpg
MIME Type : image/jpeg
Exif Byte Order : Big-endian (Motorola, MM)
Make : NIKON CORPORATION
Camera Model Name : NIKON D80
Orientation : Horizontal (normal)
X Resolution : 300
Y Resolution : 300
Resolution Unit : inches
Software : Ver.1.01
Modify Date : 2008:04:11 23:49:03
Y Cb Cr Positioning : Co-sited
Exposure Time : 0.3
F Number : 4.5
Exposure Program : Manual
ISO : 1250
Exif Version : 0221
Date/Time Original : 2008:04:11 23:49:03
Create Date : 2008:04:11 23:49:03
Components Configuration : Y, Cb, Cr, -
Compressed Bits Per Pixel : 4
Exposure Compensation : 0
Max Aperture Value : 3.5
Metering Mode : Multi-segment
Flash : Auto, Fired, Return detected
Focal Length : 18.0 mm
Maker Note Version : 2.10
Color Mode : Color
Quality : Fine
White Balance : Auto
Focus Mode : AF-S
Flash Setting : Normal
Flash Type : Built-in,TTL
White Balance Fine Tune : 0
WB RB Levels : 1.7109375 1.390625 1 1
Program Shift : 0
Exposure Difference : -1.6
Compression : JPEG (old-style)
Preview Image Start : 3720
Preview Image Length : 25124
Flash Exposure Compensation : 0
ISO Setting : 1250
Image Boundary : 0 0 3872 2592
External Flash Exposure Comp : 0
Flash Exposure Bracket Value : 0.0
Exposure Bracket Value : 0
Crop Hi Speed : Off (3904x2616 cropped to 3904x2616 at pixel 0,0)
Serial Number : 3266187
VR Info Version : 0100
VR Mode : Normal
Tone Comp : Auto
Lens Type : G
Lens : 18-70mm f/3.5-4.5
Flash Mode : Fired, TTL Mode
AF Area Mode : Single Area (wide)
AF Point : Center
AF Points In Focus : Center
Shooting Mode : Single-Frame
Color Hue : Mode1a
Light Source : Speedlight
Shot Info Version : 0208
Rotation : Horizontal
Vibration Reduction : Off
Flash Fired : Internal
Nikon Image Size : Large (10.0 M)
Image Quality : JPEG Fine
Beep : On
AF Assist : On
No Memory Card : Release Locked
Image Review : On
Illumination : Off
Main Dial Exposure Comp : Off
EV Step Size : 1/3 EV
Auto ISO : Off
Auto ISO Max : 1600
Auto ISO Min Shutter Speed : 1/30 s
Auto Bracket Set : AE & Flash
Auto Bracket Order : 0,-,+
Monitor Off Time : 20 s
Metering Time : 6 s
Self Timer Time : 10 s
AE Lock Button : AE/AF Lock
AE Lock : Off
Remote On Duration : 1 min
Command Dials : Standard (Main Shutter, Sub Aperture)
Function Button : ISO Display
Grid Display : Off
Viewfinder Warning : On
Center Weighted Area Size : 8 mm
Exposure Delay Mode : Off
MB-D80 Batteries : LR6 (AA Alkaline)
Flash Warning : On
Flash Shutter Speed : 1/64
Auto FP : Off
Modeling Flash : Off
Internal Flash : TTL
Manual Flash Output : Full
Repeating Flash Output : 1/32
Repeating Flash Count : 10
Repeating Flash Rate : 10 Hz
Commander Channel : 3
Commander Internal Flash : TTL
Commander Group A Mode : TTL
Commander Group B Mode : TTL
Commander Internal TTL Comp : 0
Commander Internal Manual Output: Full
Commander Group A TTL-AA Comp : 0
Commander Group A Manual Output : Full
Commander Group B TTL-AA Comp : 0
Commander Group B Manual Output : Full
Center AF Area : Wide Zone
Focus Area Selection : No Wrap
AF Area Illumination : Auto
AF Area Mode Setting : Single Area
Hue Adjustment : 0
Noise Reduction : Off
WB RGGB Levels : 438 256 256 356
Lens Data Version : 0202
Exit Pupil Position : 102.4 mm
AF Aperture : 3.6
Focus Position : 0x01
Focus Distance : 5.31 m
Lens ID Number : 127
Lens F Stops : 5.33
Min Focal Length : 18.3 mm
Max Focal Length : 71.3 mm
Max Aperture At Min Focal : 3.6
Max Aperture At Max Focal : 4.5
MCU Version : 132
Effective Max Aperture : 3.6
Sensor Pixel Size : 6.05 x 6.05 um
Retouch History : None
Image Data Size : 4582513
Shutter Count : 1324
Flash Info Version : 0101
Flash Source : Internal
External Flash Firmware : n/a
External Flash Flags : (none)
Flash Commander Mode : Off
Flash Control Mode : iTTL-BL
Flash Compensation : 0
Flash GN Distance : 0
Flash Group A Control Mode : Off
Flash Group B Control Mode : Off
Flash Group A Compensation : 0
Flash Group B Compensation : 0
Image Optimization : Normal
Vari Program :
Multi Exposure Version : 0100
Multi Exposure Mode : Off
Multi Exposure Shots : 0
Multi Exposure Auto Gain : Off
High ISO Noise Reduction : Normal
Toning Effect :
User Comment :
Sub Sec Time : 30
Sub Sec Time Original : 30
Sub Sec Time Digitized : 30
Flashpix Version : 0100
Color Space : sRGB
Exif Image Width : 3872
Exif Image Height : 2592
Interoperability Index : R98 - DCF basic file (sRGB)
Interoperability Version : 0100
Sensing Method : One-chip color area
File Source : Digital Camera
Scene Type : Directly photographed
CFA Pattern : [Green,Blue][Red,Green]
Custom Rendered : Normal
Exposure Mode : Manual
Digital Zoom Ratio : 1
Focal Length In 35mm Format : 27 mm
Scene Capture Type : Standard
Gain Control : High gain up
Contrast : Normal
Saturation : Normal
Sharpness : Normal
Subject Distance Range : Unknown
Thumbnail Offset : 28984
Thumbnail Length : 8931
Image Width : 3872
Image Height : 2592
Encoding Process : Baseline DCT, Huffman coding
Bits Per Sample : 8
Color Components : 3
Y Cb Cr Sub Sampling : YCbCr4:2:2 (2 1)
Aperture : 4.5
Blue Balance : 1.390625
Image Size : 3872x2592
Lens ID : AF-S DX Zoom-Nikkor 18-70mm f/3.5-4.5G IF-ED
Lens Spec : 18-70mm f/3.5-4.5 G
Megapixels : 10.0
Preview Image : (Binary data 25124 bytes, use -b option to extract)
Red Balance : 1.710938
Scale Factor To 35 mm Equivalent: 1.5
Shutter Speed : 0.3
Create Date : 2008:04:11 23:49:03.30
Date/Time Original : 2008:04:11 23:49:03.30
Modify Date : 2008:04:11 23:49:03.30
Thumbnail Image : (Binary data 8931 bytes, use -b option to extract)
Circle Of Confusion : 0.020 mm
Depth Of Field : inf (2.15 m - inf)
Field Of View : 67.2 deg (7.05 m)
Focal Length : 18.0 mm (35 mm equivalent: 27.0 mm)
Hyperfocal Distance : 3.59 m
Light Value : 2.3
If you own a D80, then you are the best one to answer this question by shooting a few test pictures.
My guess is that SelfTimerTime tag always exists, and that the ShootingMode tag indicates whether or not the self-timer was used.
- Phil
Unfortunately I broke the camera years ago and sold it and my lenses to a local shop. I might have to pick up a used one on Ebay and perform the proposed test. If anyone else has a D80 and could snap a few test frames that would be great, if not I'll go the ebay route and report back. I really appreciate the quick reply, great tool!
You may have more luck posting this request in a Nikon forum.
- Phil