Go Back   Steve's Digicams Forums > Digital SLR and Interchangeable Lens Cameras > Nikon dSLR

Reply
 
Thread Tools Search this Thread
Old Mar 22, 2008, 11:49 AM   #1
Junior Member
 
Join Date: Nov 2007
Posts: 13
Default

Hi, I've got a D40 (purchased brand new in Dec) with about 7500 shutter clicks on it. Twice now in the past week, I have taken a pic and have only received a black (blank) screen. The first time I thought it was operator error and ignored it. Today I was shooting a series of shots of flowers outside in daylight. I took a beautiful pic just before and just after the blank one, so the camera settings were just fine.

I had it on auto ISO, and when I checked the info on the blank pic, I saw that it said the pic was taken at ISO 100 - but the D40 only goes down to ISO 200!

Is this a shutter problem? A card problem? (I format the card regularly)

Any ideas or help would be greatly appreciated.

Nathan W
Nathan W is offline   Reply With Quote
Sponsored Links
Old Mar 22, 2008, 1:33 PM   #2
Administrator
 
Join Date: Jun 2003
Location: Savannah, GA (USA)
Posts: 22,378
Default

I'd suggest posting a sample of both a good and bad image in that sequence of images.

Downsize them to around 640x480 using something like the free Irfanview

After you open an image using File>Open, go to Image>Resize/Resample. Leave the box checked to retain the original aspect ratio (dimensions of width to height), and make the width around 640 pixels. Then, Save it to a new filename (so you don't overwrite your original) using File>Save As (picking a folder that you want to keep it in).

Leave the jpeg quality at around 80% and leave the boxes checked to retain EXIF (you'll see a box pop up with a jpeg quality slider when you use the Save As choice and select jpeg as the file type).

Then, after resizing them, attach a good and bad photo in the sequence to this thread by using the Browse Button you'll see under the text entry post when typing a new post.

That way (downsized), they will fit OK (they won't be too large from a file size or pixel dimensions perspective) and we can see the camera settings used and see what the images looked like.

You'll need to make two posts (for example, good photo, bad photo) in this thread for both (since you can only attach one image per post, unless they're on a publically viewable web site with hot linking).

That would tell us what else changed between them (aperture, shutter speed, iso speed, lighting, other settings...) and let us see if the image difference was (and if it was related to what the camera was choosing for settings to take them or something else).

JimC is offline   Reply With Quote
Old Mar 22, 2008, 11:13 PM   #3
Junior Member
 
Join Date: Feb 2007
Posts: 7
Default

Every once in a while, I get one of those. I thought I might have accidentally tripped the shutter release when I was taking the camera out of the bag. In other words, took a picture with my lens cap on.

Could this explain your black picture at all? It doesn't explain the iso.
mugsisme is offline   Reply With Quote
Old Mar 23, 2008, 3:09 AM   #4
Junior Member
 
Join Date: Nov 2007
Posts: 13
Default

here is the image captured seconds before:


Attached Images
 
Nathan W is offline   Reply With Quote
Old Mar 23, 2008, 3:12 AM   #5
Junior Member
 
Join Date: Nov 2007
Posts: 13
Default

here is the blank image - I tried taking a pic of the same flower from a different angle. The only adjustment I made on the camera was to the zoom.

The lens cap idea is a good theory, but not the problem in this case. The D40 will not take a picture if it can't focus on a subject. Besides, this blank took place out of the bag.
Attached Images
 
Nathan W is offline   Reply With Quote
Old Mar 23, 2008, 5:11 AM   #6
Administrator
 
Join Date: Jun 2003
Location: Savannah, GA (USA)
Posts: 22,378
Default

Odd. The date/digitized is different on the dark one.

Here's the info from the good image:

File name: bflower.jpg (Standard EXIF Tags)

>>> Photograph Information <<<

Color Filter Array Pattern : 0 2 0 2 2 1 1 0
Color Space : sRGB
Components Configuration : YCbCr
Compressed Bits per Pixel : 1
Contrast : Normal
Custom Rendered : Normal process
Date and Time (digitized) : 2008:03:22 15:33:11
Date and Time (original) : 2008:03:22 15:33:11
Digital Zoom Ratio : 1.0
Exif Version : 48 50 50 49
Exposure Bias : -2/3
Exposure Mode : Auto
Exposure Program : Aperture priority
Exposure Time : 1/200 s
FNumber : F5.6
File Source : Digital still camera
Flash : No flash
FlashPix Version : 48 49 48 48
Focal Length : 180.0 mm
Gain Control : None
ISO Speed Ratings : 200
Interoperability IFD Pointer : 8
Light Source : Unknown
Max Aperture Value : F5.7
Metering Mode : Multi-segment
Pixel X Dimension : 3008
Pixel Y Dimension : 2000
Saturation : Normal
Scene Capture Type : Standard
Scene Type : Directly photographed
Sensing Method : One-chip color area
Sharpness : Normal
Sub-seconds Time : 20
Sub-seconds Time Digitized : 20
Sub-seconds Time Original : 20
Subject Distance Range : Unknown
User Comment :
White Balance : Auto


>>> Image Information <<<

Date and Time : 2008:03:22 15:33:11
Exif IFD Pointer : 8
Manufacturer : NIKON CORPORATION
Model : NIKON D40
Orientation : top, left
Resolution Unit : inch
Software : Ver.1.10
X-Resolution : 300
YCbCr Positioning : Co-sited
Y-Resolution : 300

File name: bflower.jpg (MakerNote EXIF Tags)

>>> Nikon3 <<<

AF Focus Position : Dynamic area; Center used
Auto Bracket Release : (255)
Color Balance 1 : 519/256 410/256 256/256 256/256
Color Balance 2 : 48 50 48 56 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ...
Color Mode : MODE3a
Color Space : sRGB
Crop High Speed : 0 3040 2014 3040 2014 0 0
Exposure Difference : 0 1 12 0
Flash Comp : 0.0 EV
Flash Device :
Flash Mode : Did not fire
Flash Setting : NORMAL
Focus : (AF-A )
High ISO Noise Reduction : Off
Hue Adjustment : 0
Image Boundary : 0 0 3008 2000
Image Data Size : 746471
Image Optimization : NORMAL
ISO Settings : 200
ISO Speed : 200
Lens : 55-200mm F4-5.6
Lens Data : 48 50 48 50 158 176 112 58 247 35 155 172 79 220 13 94 14 75 95 223 75 72 0 98 62 253 158 39 141 215 4 42
Lens FStops : 4.91667
Lens Type : D G VR
Light Source : NATURAL
Noise Reduction : OFF
Pointer to a preview image : 2650
Program Shift : 0 1 6 0
Program Variation :
Quality : BASIC
Saturation : AUTO
Sensor Pixel Size : 605/100 605/100
Serial Number : 3233332
Sharpening : AUTO
Shooting Mode : (33)
Shutter Count : 7176
Tone Compensation : AUTO
Version : 48 50 49 48
White Balance : AUTO
White Balance Bias : 0


JimC is offline   Reply With Quote
Old Mar 23, 2008, 5:14 AM   #7
Administrator
 
Join Date: Jun 2003
Location: Savannah, GA (USA)
Posts: 22,378
Default

Here's what's in the dark one (but, there doesn't seem to be enough exposure difference to warrant the results. Some kind of "glitch" happened (probably electrical).

I'd remount the lens a few times in case it's just a bad connection or something similar causing it.

File name: blank.jpg (Standard EXIF Tags)

>>> Photograph Information <<<

Color Filter Array Pattern : 0 2 0 2 2 1 1 0
Color Space : sRGB
Components Configuration : YCbCr
Compressed Bits per Pixel : 1
Contrast : Normal
Custom Rendered : Normal process
Date and Time (digitized) : 2000:01:01 05:30:00
Date and Time (original) : 2008:03:22 15:33:24
Digital Zoom Ratio : 1.0
Exif Version : 48 50 50 49
Exposure Bias : -2/3
Exposure Mode : Auto
Exposure Program : Aperture priority
Exposure Time : 1/250 s
FNumber : F5.3
File Source : Digital still camera
Flash : No flash
FlashPix Version : 48 49 48 48
Focal Length : 165.0 mm
Gain Control : None
ISO Speed Ratings : 100
Interoperability IFD Pointer : 8
Light Source : Unknown
Max Aperture Value : F5.3
Metering Mode : Multi-segment
Pixel X Dimension : 3008
Pixel Y Dimension : 2000
Saturation : Normal
Scene Capture Type : Standard
Scene Type : Directly photographed
Sensing Method : One-chip color area
Sharpness : Normal
Sub-seconds Time : 00
Sub-seconds Time Digitized : 00
Sub-seconds Time Original : 00
Subject Distance Range : Unknown
User Comment :
White Balance : Auto


>>> Image Information <<<

Date and Time : 2008:03:22 15:33:24
Exif IFD Pointer : 8
Manufacturer : NIKON CORPORATION
Model : NIKON D40
Orientation : top, left
Resolution Unit : inch
Software : Ver.1.10
X-Resolution : 300
YCbCr Positioning : Co-sited
Y-Resolution : 300

File name: blank.jpg (MakerNote EXIF Tags)

>>> Nikon3 <<<

AF Focus Position : N/A
Auto Bracket Release : (255)
Color Balance 1 : 519/256 410/256 256/256 256/256
Color Balance 2 : 48 50 48 56 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ...
Color Mode : MODE3a
Color Space : sRGB
Crop High Speed : 0 3040 2014 3040 2014 0 0
Exposure Difference : 0 1 12 0
Flash Comp : 0.0 EV
Flash Device :
Flash Mode : Did not fire
Flash Setting : NORMAL
Focus : (MANUAL)
High ISO Noise Reduction : Off
Hue Adjustment : 0
Image Boundary : 0 0 3008 2000
Image Data Size : 117504
Image Optimization : NORMAL
ISO Settings : 200
ISO Speed : 100
Lens : 55-200mm F4-5.6
Lens Data : 48 50 48 50 39 14 30 227 158 77 233 117 38 107 182 39 231 16 54 119 160 224 117 138 231 166 73 206 52 128 175 133
Lens FStops : 4.91667
Lens Type : D G VR
Light Source : NATURAL
Noise Reduction : OFF
Pointer to a preview image : 2650
Program Shift : 0 1 6 0
Program Variation :
Quality : BASIC
Saturation : AUTO
Sensor Pixel Size : 605/100 605/100
Serial Number : 3233332
Sharpening : AUTO
Shooting Mode : (33)
Shutter Count : 7177
Tone Compensation : AUTO
Version : 48 50 49 48
White Balance : AUTO
White Balance Bias : 0

JimC is offline   Reply With Quote
Old Mar 23, 2008, 5:16 AM   #8
Administrator
 
Join Date: Jun 2003
Location: Savannah, GA (USA)
Posts: 22,378
Default

There is no AF position in the second image's EXIF. Are you sure you had focus locked on something (and the lens cap wasn't covered by something). I'd remount the lens in case a bad connection was causing a glitch.


JimC is offline   Reply With Quote
Old Mar 23, 2008, 5:28 AM   #9
Junior Member
 
Join Date: Nov 2007
Posts: 13
Default

hmm. I hadn't noticed the capture and digitized date difference before. I will try remounting the lens and seeing what happens. Interestingly, both blank shots I had were with the same lens on. Will let you know if another blank turns up.

Thanks.

Nathan
Nathan W is offline   Reply With Quote
 
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 7:24 PM.