night shots with digital rebel

[mickraemer]

i recently tried some night shots while on a trip in portugal. i used my canon 300d with the 18-55 ef-s kit lens with ab uv-fliter. I have some "rainbow" glare in the picture and would like to know where this comes from. I shot in aperture priority. This is the information i extracted from my picture:
Tv=30, Av=16, ISO=100, Flash=off, auto white balance.

the picture is here


please let me know what i can do to avoid this in the future.

thanks,

michael

 

[RickyN29]

oh strange. I do a lot of shots with my 350d with the very similar 18-55 ef-s lense (type III i think). I have never encounter that problem. I could be way off, but you might try some test shots without the UV filter. Again, i could be wrong here also, but I never use my UV at night.


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I can fix that pic (remove the rainbows) for ya if you like.

 

[SiCk]

I've never had this problem myself, so the only thing i can really think is the UV Filter also...

 

[Jmart_88]

thats still a pretty cool shot. even with the rainbows. hey how do you guys like your digital rebels? ive been looking into them

 

[ShutteredEye]

Hmmm that is strange. It's got to be the UV filter. Here's my 350XT at night....

http://home.comcast.net/~robertfenton/Dallas4.jpg at 1600 ISO and 4"

http://home.comcast.net/~robertfenton/Dallas7.jpg at 200 ISO and 10"

No filters used at all, including uv filter.

 

[JonMikal]

i say it's nothing but light refraction based on the angle of light and camera position... similar to what causes a rainbow. here you have the same elements light/water.

the fountain is overexposed.