Lens internal reflection?
Discussion
Hi all
SWMBO bought me the very nice Nikkor 70-300mm VR II zoom lens for my D90. I have been using it for night photography on a tripod to capture the highlights of the local cityscape.
Recently I took this as a test shot:
Please forget the issues that:
1. I have cut the top of the tower off
2. The horizon is not straight
3. The image is a bit fuzzy: don't put your tripod on wood decking as it moves. Also don't try and take pictures from a 33rd floor balcony when the whole building is swaying in the strong wind
My question is: why have I got an inverted ghost image of the blue lights on the tower? I haven't seen this on any of the other pictures I have taken.
Here is the EXIF data for info:
File Info 1
File: Tokyo Tower 0813.JPG
Date Created: 13/08/2010 13:15:06
Date Modified: 13/08/2010 13:15:06
File Size: 4.38 MB
Image Size: L (4288 x 2848)
File Info 2
Date Shot: 13/08/2010 13:15:06.00
World Time: UTC+9, DST:OFF
Image Quality: Jpeg Fine (8-bit)
Artist:
Copyright:
Image Comment:
Camera Info
Device: Nikon D90
Lens: VR 70-300mm F/4.5-5.6G
Focal Length: 180mm
Focus Mode: AF-A
AF-Area Mode: Wide Area
VR: ON
AF Fine Tune:
Exposure
Aperture: F/8
Shutter Speed: 2s
Exposure Mode: Manual
Exposure Comp.: +0.7EV
Exposure Tuning:
Metering: Center-Weighted
ISO Sensitivity: ISO 200
Image Settings
White Balance: Auto, 0, 0
Color Space: sRGB
High ISO NR: OFF
Long Exposure NR: OFF
Active D-Lighting: Auto
Sharpening: 3
Thanks for any help with this!
SWMBO bought me the very nice Nikkor 70-300mm VR II zoom lens for my D90. I have been using it for night photography on a tripod to capture the highlights of the local cityscape.
Recently I took this as a test shot:
Please forget the issues that:
1. I have cut the top of the tower off
2. The horizon is not straight
3. The image is a bit fuzzy: don't put your tripod on wood decking as it moves. Also don't try and take pictures from a 33rd floor balcony when the whole building is swaying in the strong wind
My question is: why have I got an inverted ghost image of the blue lights on the tower? I haven't seen this on any of the other pictures I have taken.
Here is the EXIF data for info:
File Info 1
File: Tokyo Tower 0813.JPG
Date Created: 13/08/2010 13:15:06
Date Modified: 13/08/2010 13:15:06
File Size: 4.38 MB
Image Size: L (4288 x 2848)
File Info 2
Date Shot: 13/08/2010 13:15:06.00
World Time: UTC+9, DST:OFF
Image Quality: Jpeg Fine (8-bit)
Artist:
Copyright:
Image Comment:
Camera Info
Device: Nikon D90
Lens: VR 70-300mm F/4.5-5.6G
Focal Length: 180mm
Focus Mode: AF-A
AF-Area Mode: Wide Area
VR: ON
AF Fine Tune:
Exposure
Aperture: F/8
Shutter Speed: 2s
Exposure Mode: Manual
Exposure Comp.: +0.7EV
Exposure Tuning:
Metering: Center-Weighted
ISO Sensitivity: ISO 200
Image Settings
White Balance: Auto, 0, 0
Color Space: sRGB
High ISO NR: OFF
Long Exposure NR: OFF
Active D-Lighting: Auto
Sharpening: 3
Thanks for any help with this!
i've had this before in a similar situation with similar lens- was at the top of the Hilton in Park Lane doing timelapse of the skyline using a nikkor 55-200 mm lens.
On closer inspection the BT tower had exactly the same type of flare you've got i your photo. I put it down to internal lens reflections like you mentioned in the title. weird, isnt it? I've never noticed it in any other situation other than point light sources at night
On closer inspection the BT tower had exactly the same type of flare you've got i your photo. I put it down to internal lens reflections like you mentioned in the title. weird, isnt it? I've never noticed it in any other situation other than point light sources at night
GlenMH said:
crmcatee said:
do you have a filter on the front ?
Yes - I have got a screw on UV filter on the front. Will this make a difference (apart from costing me .5 to 1 stop of light)?And a UV fiter won't lose you anything like that much light - I doubt it would even make .1 of a stop difference, let alone 1/2 to a whole stop.
I had a similar issue with my 450d earlier this year, was down to the uv filter...
http://mobile.pistonheads.com/gassing/topic.asp?h=...
http://mobile.pistonheads.com/gassing/topic.asp?h=...
Some lenses don't become fully sealed until a filter is put on the front. I know the 16-35 I'm looking at the moment is one that needs a filter on the front to become fully sealed.
Admittingly, you need to be shooting in dusty / wet conditions to want to keep the filter on - otherwise its off.
Admittingly, you need to be shooting in dusty / wet conditions to want to keep the filter on - otherwise its off.
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