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
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:
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
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 Name | DSC_6162.JPG |
| File Size | 2.1 MB |
| File Modification Date/Time | 2020:01:16 01:58:57+08:00 |
| File Access Date/Time | 2020:01:16 01:58:57+08:00 |
| File Inode Change Date/Time | 2020:01:16 01:58:57+08:00 |
| File Permissions | rw-r--r-- |
| 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 D90 |
| Orientation | Horizontal (normal) |
| X Resolution | 300 |
| Y Resolution | 300 |
| Resolution Unit | inches |
| Software | Ver.1.00 |
| Modify Date | 2020:01:03 21:32:23 |
| Y Cb Cr Positioning | Co-sited |
| Exposure Time | 30 |
| F Number | 0 |
| Exposure Program | Manual |
| ISO | 800 |
| Exif Version | 0221 |
| Date/Time Original | 2020:01:03 21:32:23 |
| Create Date | 2020:01:03 21:32:23 |
| Components Configuration | Y, Cb, Cr, - |
| Compressed Bits Per Pixel | 4 |
| Exposure Compensation | 0 |
| Max Aperture Value | 1.0 |
| Metering Mode | Center-weighted average |
| Light Source | Tungsten (Incandescent) |
| Flash | No Flash |
| Focal Length | 0.0 mm |
| Maker Note Version | 2.10 |
| Quality | Fine |
| White Balance | Incandescent |
| Focus Mode | Manual |
| Flash Setting | Normal |
| Flash Type | |
| White Balance Fine Tune | 0 0 |
| WB RB Levels | 1.1796875 2.09765625 1 1 |
| Program Shift | 0 |
| Exposure Difference | +2.7 |
| Compression | JPEG (old-style) |
| Preview Image Start | 10204 |
| Preview Image Length | 6482 |
| Flash Exposure Compensation | -2 |
| ISO Setting | 800 |
| Image Boundary | 0 0 4288 2848 |
| External Flash Exposure Comp | 0 |
| Flash Exposure Bracket Value | 0.0 |
| Exposure Bracket Value | 0 |
| Crop Hi Speed | Off (4352x2868 cropped to 4352x2868 at pixel 0,0) |
| Exposure Tuning | 0 |
| Serial Number | 3338321 |
| VR Info Version | 0100 |
| Vibration Reduction | Off |
| VR Mode | Normal |
| Active D-Lighting | Off |
| Picture Control Version | 0100 |
| Picture Control Name | Standard |
| Picture Control Base | Standard |
| Picture Control Adjust | Default Settings |
| Picture Control Quick Adjust | Normal |
| Brightness | Normal |
| Hue Adjustment | None |
| Filter Effect | n/a |
| Toning Effect | n/a |
| Toning Saturation | n/a |
| Time Zone | -08:00 |
| Daylight Savings | Yes |
| Date Display Format | M/D/Y |
| ISO Expansion | Off |
| ISO Expansion 2 | Off |
| Lens Type | MF |
| Lens | 0mm f/0 |
| Flash Mode | Did Not Fire |
| Shooting Mode | Single-Frame |
| Shot Info Version | 0213 |
| Firmware Version | 1.00i |
| ISO2 | 800 |
| Light Switch | LCD Backlight |
| AF Area Mode Setting | Auto-area |
| Center Focus Point | Normal Zone |
| AF Assist | Off |
| AF Point Illumination | Auto |
| Focus Point Wrap | No Wrap |
| AE Lock For MB-D80 | AE/AF Lock |
| MB-D80 Battery Type | LR6 (AA alkaline) |
| Beep | Off |
| Grid Display | On |
| ISO Display | Show Frame Count |
| Viewfinder Warning | On |
| No Memory Card | Release Locked |
| Screen Tips | On |
| File Number Sequence | On |
| Shooting Info Display | Auto |
| LCD Illumination | Off |
| Easy Exposure Comp | Off |
| Reverse Indicators | + 0 - |
| Exposure Control Step Size | 1/3 EV |
| Center Weighted Area Size | 8 mm |
| Fine Tune Opt Matrix Metering | 0 |
| Fine Tune Opt Center Weighted | 0 |
| Fine Tune Opt Spot Metering | 0 |
| CL Mode Shooting Speed | 3 fps |
| Exposure Delay Mode | Off |
| Auto Bracket Set | AE & Flash |
| Auto Bracket Order | 0,-,+ |
| Func Button | FV Lock |
| OK Button | Select Center Focus Point |
| AE Lock Button | AE/AF Lock |
| Command Dials Reverse Rotation | No |
| Shutter Release Button AE-L | Off |
| Metering Time | 6 s |
| Remote On Duration | 1 min |
| Self Timer Time | 10 s |
| Self Timer Shot Count | 1 |
| Playback Monitor Off Time | 10 s |
| Image Review Time | 4 s |
| Menu Monitor Off Time | 20 s |
| Shooting Info Monitor Off Time | 10 s |
| Flash Shutter Speed | 1/60 s |
| Internal Flash | TTL |
| Manual Flash Output | Full |
| Repeating Flash Output | 1/32 |
| Repeating Flash Count | 10 |
| Repeating Flash Rate | 10 Hz |
| Flash Warning | On |
| Commander Internal TTL Comp | 0 |
| Modeling Flash | Off |
| Auto FP | Off |
| Commander Group A TTL Comp | 0 |
| Commander Group B TTL Comp | 0 |
| Live View AF | Wide Area |
| Noise Reduction | Off |
| WB GRBG Levels | 256 302 537 256 |
| Lens Data Version | 0204 |
| Exit Pupil Position | 0.0 mm |
| AF Aperture | 1.0 |
| Focus Position | 0x00 |
| Focus Distance | 0.01 m |
| Lens ID Number | 0 |
| Lens F Stops | 0.00 |
| Min Focal Length | 5.0 mm |
| Max Focal Length | 5.0 mm |
| Max Aperture At Min Focal | 1.0 |
| Max Aperture At Max Focal | 1.0 |
| MCU Version | 0 |
| Effective Max Aperture | 1.0 |
| Retouch History | None |
| Image Data Size | 2112846 |
| Shutter Count | 136929 |
| Flash Info Version | 0103 |
| Flash Source | None |
| External Flash Firmware | n/a |
| External Flash Flags | (none) |
| Flash Commander Mode | Off |
| Flash Control Mode | Off |
| Flash Compensation | 0 |
| Flash GN Distance | 0 |
| Flash Color Filter | None |
| Flash Group A Control Mode | Off |
| Flash Group B Control Mode | Off |
| Flash Group C Control Mode | Off |
| Flash Group A Compensation | 0 |
| Flash Group B Compensation | 0 |
| Flash Group C Compensation | 0 |
| Vari Program | |
| Multi Exposure Version | 0100 |
| Multi Exposure Mode | Off |
| Multi Exposure Shots | 0 |
| Multi Exposure Auto Gain | Off |
| High ISO Noise Reduction | Off |
| Power Up Time | 2020:01:03 20:21:10 |
| AF Info 2 Version | 0100 |
| Contrast Detect AF | Off |
| AF Area Mode | Single Area |
| Phase Detect AF | Off |
| Primary AF Point | (none) |
| AF Points Used | (none) |
| Contrast Detect AF In Focus | No |
| File Info Version | 0100 |
| Memory Card Number | 0 |
| File Number | 6162 |
| Retouch Info Version | 0100 |
| User Comment | |
| Sub Sec Time | 00 |
| Sub Sec Time Original | 00 |
| Sub Sec Time Digitized | 00 |
| Flashpix Version | 0100 |
| Color Space | sRGB |
| Exif Image Width | 4288 |
| Exif Image Height | 2848 |
| 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 | 0 mm |
| Scene Capture Type | Standard |
| Gain Control | Low gain up |
| Contrast | Normal |
| Saturation | Normal |
| Sharpness | Normal |
| Subject Distance Range | Unknown |
| GPS Version ID | 2.2.0.0 |
| Thumbnail Offset | 16844 |
| Thumbnail Length | 2239 |
| Image Width | 4288 |
| Image Height | 2848 |
| Encoding Process | Baseline DCT, Huffman coding |
| Bits Per Sample | 8 |
| Color Components | 3 |
| Y Cb Cr Sub Sampling | YCbCr4:2:2 (2 1) |
| Auto Focus | Off |
| Blue Balance | 2.097656 |
| Image Size | 4288x2848 |
| Lens ID | Manual Lens No CPU |
| Lens Spec | 0mm f/0 MF |
| Megapixels | 12.2 |
| Red Balance | 1.179688 |
| Shutter Speed | 30 |
| Create Date | 2020:01:03 21:32:23.00 |
| Date/Time Original | 2020:01:03 21:32:23.00 |
| Modify Date | 2020:01:03 21:32:23.00 |
| Focal Length | 0.0 mm |