Major fail during meteor shower shoot

wildmaven

New member
Okay photo gurus, I need help! I set my camera to manual, 30sec, ISO 800, f/3.5, using my 11mm lens on my Nikon D90. With my intervalometer, I set it so that my camera would take the 30second photo and then start another all night long.

At two points during the night, the images got incredibly dark (but not totally black, there was a star and my neighbor's window still visible) for about 3-5 minutes and then the images came back. The data for the dark photos show no data for for the f-stop or focal length! Any ideas?? The camera was not touched at all during the night. Anti-noise feature was turned off.  Shutter count is 138,000.

In Photoshop, it says: f/>1024, Lens 0.0mm f/0.0 :confused::confused::confused:

The dark photo and the light photo were 30 sec apart.



Here are the same 2 photos with the top one adjusted to show that there really is an image in the dark one:



EXIF Data:

File NameDSC_6162.JPG
File Size2.1 MB
File Modification Date/Time2020:01:16 01:58:57+08:00
File Access Date/Time2020:01:16 01:58:57+08:00
File Inode Change Date/Time2020:01:16 01:58:57+08:00
File Permissionsrw-r--r--
File TypeJPEG
File Type Extensionjpg
MIME Typeimage/jpeg
Exif Byte OrderBig-endian (Motorola, MM)
MakeNIKON CORPORATION
Camera Model NameNIKON D90
OrientationHorizontal (normal)
X Resolution300
Y Resolution300
Resolution Unitinches
SoftwareVer.1.00
Modify Date2020:01:03 21:32:23
Y Cb Cr PositioningCo-sited
Exposure Time30
F Number0
Exposure ProgramManual
ISO800
Exif Version0221
Date/Time Original2020:01:03 21:32:23
Create Date2020:01:03 21:32:23
Components ConfigurationY, Cb, Cr, -
Compressed Bits Per Pixel4
Exposure Compensation0
Max Aperture Value1.0
Metering ModeCenter-weighted average
Light SourceTungsten (Incandescent)
FlashNo Flash
Focal Length0.0 mm
Maker Note Version2.10
QualityFine
White BalanceIncandescent
Focus ModeManual
Flash SettingNormal
Flash Type
White Balance Fine Tune0 0
WB RB Levels1.1796875 2.09765625 1 1
Program Shift0
Exposure Difference+2.7
CompressionJPEG (old-style)
Preview Image Start10204
Preview Image Length6482
Flash Exposure Compensation-2
ISO Setting800
Image Boundary0 0 4288 2848
External Flash Exposure Comp0
Flash Exposure Bracket Value0.0
Exposure Bracket Value0
Crop Hi SpeedOff (4352x2868 cropped to 4352x2868 at pixel 0,0)
Exposure Tuning0
Serial Number3338321
VR Info Version0100
Vibration ReductionOff
VR ModeNormal
Active D-LightingOff
Picture Control Version0100
Picture Control NameStandard
Picture Control BaseStandard
Picture Control AdjustDefault Settings
Picture Control Quick AdjustNormal
BrightnessNormal
Hue AdjustmentNone
Filter Effectn/a
Toning Effectn/a
Toning Saturationn/a
Time Zone-08:00
Daylight SavingsYes
Date Display FormatM/D/Y
ISO ExpansionOff
ISO Expansion 2Off
Lens TypeMF
Lens0mm f/0
Flash ModeDid Not Fire
Shooting ModeSingle-Frame
Shot Info Version0213
Firmware Version1.00i
ISO2800
Light SwitchLCD Backlight
AF Area Mode SettingAuto-area
Center Focus PointNormal Zone
AF AssistOff
AF Point IlluminationAuto
Focus Point WrapNo Wrap
AE Lock For MB-D80AE/AF Lock
MB-D80 Battery TypeLR6 (AA alkaline)
BeepOff
Grid DisplayOn
ISO DisplayShow Frame Count
Viewfinder WarningOn
No Memory CardRelease Locked
Screen TipsOn
File Number SequenceOn
Shooting Info DisplayAuto
LCD IlluminationOff
Easy Exposure CompOff
Reverse Indicators+ 0 -
Exposure Control Step Size1/3 EV
Center Weighted Area Size8 mm
Fine Tune Opt Matrix Metering0
Fine Tune Opt Center Weighted0
Fine Tune Opt Spot Metering0
CL Mode Shooting Speed3 fps
Exposure Delay ModeOff
Auto Bracket SetAE & Flash
Auto Bracket Order0,-,+
Func ButtonFV Lock
OK ButtonSelect Center Focus Point
AE Lock ButtonAE/AF Lock
Command Dials Reverse RotationNo
Shutter Release Button AE-LOff
Metering Time6 s
Remote On Duration1 min
Self Timer Time10 s
Self Timer Shot Count1
Playback Monitor Off Time10 s
Image Review Time4 s
Menu Monitor Off Time20 s
Shooting Info Monitor Off Time10 s
Flash Shutter Speed1/60 s
Internal FlashTTL
Manual Flash OutputFull
Repeating Flash Output1/32
Repeating Flash Count10
Repeating Flash Rate10 Hz
Flash WarningOn
Commander Internal TTL Comp0
Modeling FlashOff
Auto FPOff
Commander Group A TTL Comp0
Commander Group B TTL Comp0
Live View AFWide Area
Noise ReductionOff
WB GRBG Levels256 302 537 256
Lens Data Version0204
Exit Pupil Position0.0 mm
AF Aperture1.0
Focus Position0x00
Focus Distance0.01 m
Lens ID Number0
Lens F Stops0.00
Min Focal Length5.0 mm
Max Focal Length5.0 mm
Max Aperture At Min Focal1.0
Max Aperture At Max Focal1.0
MCU Version0
Effective Max Aperture1.0
Retouch HistoryNone
Image Data Size2112846
Shutter Count136929
Flash Info Version0103
Flash SourceNone
External Flash Firmwaren/a
External Flash Flags(none)
Flash Commander ModeOff
Flash Control ModeOff
Flash Compensation0
Flash GN Distance0
Flash Color FilterNone
Flash Group A Control ModeOff
Flash Group B Control ModeOff
Flash Group C Control ModeOff
Flash Group A Compensation0
Flash Group B Compensation0
Flash Group C Compensation0
Vari Program
Multi Exposure Version0100
Multi Exposure ModeOff
Multi Exposure Shots0
Multi Exposure Auto GainOff
High ISO Noise ReductionOff
Power Up Time2020:01:03 20:21:10
AF Info 2 Version0100
Contrast Detect AFOff
AF Area ModeSingle Area
Phase Detect AFOff
Primary AF Point(none)
AF Points Used(none)
Contrast Detect AF In FocusNo
File Info Version0100
Memory Card Number0
File Number6162
Retouch Info Version0100
User Comment
Sub Sec Time00
Sub Sec Time Original00
Sub Sec Time Digitized00
Flashpix Version0100
Color SpacesRGB
Exif Image Width4288
Exif Image Height2848
Interoperability IndexR98 - DCF basic file (sRGB)
Interoperability Version0100
Sensing MethodOne-chip color area
File SourceDigital Camera
Scene TypeDirectly photographed
CFA Pattern[Green,Blue][Red,Green]
Custom RenderedNormal
Exposure ModeManual
Digital Zoom Ratio1
Focal Length In 35mm Format0 mm
Scene Capture TypeStandard
Gain ControlLow gain up
ContrastNormal
SaturationNormal
SharpnessNormal
Subject Distance RangeUnknown
GPS Version ID2.2.0.0
Thumbnail Offset16844
Thumbnail Length2239
Image Width4288
Image Height2848
Encoding ProcessBaseline DCT, Huffman coding
Bits Per Sample8
Color Components3
Y Cb Cr Sub SamplingYCbCr4:2:2 (2 1)
Auto FocusOff
Blue Balance2.097656
Image Size4288x2848
Lens IDManual Lens No CPU
Lens Spec0mm f/0 MF
Megapixels12.2
Red Balance1.179688
Shutter Speed30
Create Date2020:01:03 21:32:23.00
Date/Time Original2020:01:03 21:32:23.00
Modify Date2020:01:03 21:32:23.00
Focal Length0.0 mm
 
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