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FORUMS Photography Talk by Genre Critique Corner 
Thread started 15 Aug 2010 (Sunday) 12:09
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Blurry night shots help?

 
DC631
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Aug 15, 2010 12:09 |  #1

First time trying night shots . Using 18-55 lens at 55 iso 200 . In Av mode 5.6 shutter speed of 10 with a tripod on 2 second timer ..


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Tdragone
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Aug 15, 2010 12:17 |  #2

a 10 second shutter speed will show all movement as blur (Like the clouds and trees) as well as blowing out the detail in the Moon.

Raise your ISO up to shorten your shutter speed.


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DC631
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Aug 15, 2010 12:35 |  #3

Thanks i'll try that . Should I use manual mode instead of AV since in AV it picks shutter speed for you ?


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732NJ
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Aug 15, 2010 15:45 |  #4

DC631 wrote in post #10725566 (external link)
Thanks i'll try that . Should I use manual mode instead of AV since in AV it picks shutter speed for you ?

Im still learning but from what i understand if your in Av and you up ur ISO it should speed up ur shutter some. not sure how much because i dont think ive every taken a photo with that long of a shutter speed (on purpose haha)


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iSax1234
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Aug 16, 2010 14:08 |  #5

are you using a UV filter it looks like you have some ghosting on both images. Above the moon in the first image and below it on the house in the second.


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DC631
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Aug 16, 2010 22:13 |  #6

iSax1234 wrote in post #10732341 (external link)
are you using a UV filter it looks like you have some ghosting on both images. Above the moon in the first image and below it on the house in the second.

Yes i have a uv filter on my lens ..


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LOKPhotography
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Aug 16, 2010 22:44 |  #7

for night shots like that i use tripod, im in manual at f8.0 1/200, at iso 200 and i got a beautiful night shot like this.

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Titus213
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Aug 17, 2010 00:55 |  #8

A good place to start: On a sunny day set aperture to f/16 and shutter speed to the [reciprocal of the ISO film speed [or ISO setting]


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Deliquesce-Flux
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Aug 17, 2010 17:16 |  #9

You're going to need to raise your ISO quite a bit, get the shutter speed much higher because a 10 will make everything blurry.

Sometimes an external flash helps ;) Not exactly for sky shots, but for any other outdoor activity.




  
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Titus213
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Aug 17, 2010 20:29 |  #10

Obviously, anything that is lit well enough and moves will show a blur on a 10 second exposure. Clouds are generally not a big problem. The moon will be - it's always sunny on the moon and the sunny 16 rule will leave the rest of your image very dark. Long exposures are the norm in night photography so a steady tripod is a must. Pick a time earlier in the evening when there is still some light in the sky.

Use manual mode on the camera. Av will be fooled by the bright spots in the image. I'd get rid of the filter. I generally use ISO 100 and try to keep my exposures under that camera's max of 30 seconds. A couple trial shots should get you where you should be on exposure.

A flash can be used to expose subjects in the foreground.

Sample Night Shots (external link)

Another option would be HDR. Combine multiple shots properly exposing areas of the image. Again, a steady tripod is a big help.


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TheBurningCrown
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Aug 17, 2010 20:38 as a reply to  @ Titus213's post |  #11

DC631 wrote in post #10735003 (external link)
Yes i have a uv filter on my lens ..

Try taking it off. That will improve the quality of the images (whether it's noticeable or not who knows).

No one else mentioned this, but: turn IS on the lens OFF when you have the lens on a tripod (as a general principle). If the IS is on it will result is soft pictures (which I think is what happened to yours).


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DC631
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Aug 21, 2010 07:28 |  #12

Thanx for all the responses I will have to try all the new tips and post some more pics .....


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GorgeShooter
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Aug 21, 2010 09:56 |  #13

Make sure your IS is turned off when on a tripod


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jimmeh
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Aug 21, 2010 12:22 |  #14

this IS on a tripod business- why is that? does anyone have any examples illustrating this..?

I'm not doubting at all- just curious as- not knowing much about how IS works- I don't understand how it could actually decrease the quality of the image.




  
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TheBurningCrown
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Aug 21, 2010 12:38 |  #15

jimmeh wrote in post #10762292 (external link)
this IS on a tripod business- why is that? does anyone have any examples illustrating this..?

I'm not doubting at all- just curious as- not knowing much about how IS works- I don't understand how it could actually decrease the quality of the image.

I think these examples illustrate it fine.

IS tries to compensate for hand movement. When on a tripod, IS will try to compensate for movement that isn't there, which will induce movement into the picture (basically causing a handshake-like effect).

It's screwy that the device that gets rid of handshake would actually cause something like that itself, but there it is.


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Blurry night shots help?
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