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PostPosted: Fri Feb 04, 2011 7:59 pm 
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A couple of weeks ago, I was shooting a couple of portraits etc for a friend.

I used the kit lens and selected the lowest aperture for where I was zoomed, and I am unsure where I zoomed to.

I relied solely on halogen spotlights that the ceiling provided.

I can't really post the image without the person's consent, but would like some advice.

The output wasn't great, the image wasn't pin sharp, and the outside of the person's face was blurred as well as some of the background. The result wasn't great.

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Last edited by Canon 500D on Tue Feb 08, 2011 3:12 am, edited 1 time in total.

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PostPosted: Fri Feb 04, 2011 8:00 pm 
Sounds like motion blur? Or incorrect focus? What was the shutter speed and were you on single or continuous focus?


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PostPosted: Fri Feb 04, 2011 8:21 pm 
Also if U use a large apperture, U lose a bit of detail. I find the 18 - 55mm best at F8.0

Although motionblur is more likely to be the problem here.. try recreating the conditions and checking your shutterspeed. Try not to go below 1/60 of a second when shooting hand held. This is displayed thru the viewfinder as simply the number 60.

If your shutterspeed is to low, U can use a flash. Or possibly increase the lighting. And if prefer you can bump up the ISO.


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PostPosted: Sat Feb 05, 2011 9:54 am 
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I appreciate advice about lighting, but I believe that here, that was not the problem.

I used flash for some of the images.

I shot hand held with the camera a distance away from me (live view).

Exif
F/4.5 (minimum is 3.5)
1/10 Seconds Shutter
ISO 400

Canon EOS 500D with 18-55mm IS Kit Lens.

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PostPosted: Sat Feb 05, 2011 10:05 am 
Your problem fairly certainly lies in the 1/10 shutter speed.

You should have put the aperture down to f3.5 and the ISO up to 1600 or so.

You wont even be able to handhold a shot at 1/10 hence the output "not being pin sharp" let alone would you freeze the action.

For portraits/people shooting I like the shutter to be at least 1/125 or preferably 1/250 to freeze their motion

EDIT:Just noticed you said you used live view. This makes it slower to focus if the person moves a little and also makes it harder to handhold. If you get the camera to your face, and tuck your arms right in then you'll find you can shoot at slower shutter speeds like 1/10 possibly.


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PostPosted: Sat Feb 05, 2011 11:22 am 
you can see this effect for yourself, if you set your camera to "tv" and take 2 pictures.. one hand-held shot at 1/10 and one with your camera on a tripod or simply set down on a table

I also overestimated the amout of light these halogen spotlights produce.. they produce verry little light and you will propably find yourself not having any problems in normal daylight..


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PostPosted: Sat Feb 05, 2011 11:37 am 
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jeremy1302 wrote:
Your problem fairly certainly lies in the 1/10 shutter speed


I can not remember whether I selected it myself or whether the camera did.

jeremy1302 wrote:
You should have put the aperture down to f3.5 and the ISO up to 1600 or so.


Ouch :shock:

I think I may have used 1600 before.

jeremy1302 wrote:
Just noticed you said you used live view. This makes it slower to focus


I use manual focus the majority of the time, and I agree that once focussed, the subject can move slightly.

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PostPosted: Sat Feb 05, 2011 11:44 am 
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MF in low light with the kit lens and LV? That's pretty hard, try to use the normal AF through the v/f which is much faster.

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PostPosted: Sat Feb 05, 2011 1:22 pm 
Canon 500D wrote:
I think I may have used 1600 before


Its not there for show, its there to be used.

Wouldnt you rather have a noisy photo than a blurry photo?

Also I agree with Ruben. Why manually focus? Just set it to continuous and select your focus point manually will be more accurate.


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PostPosted: Sat Feb 05, 2011 4:10 pm 
PS, is there no way you could post the picture?

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??


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PostPosted: Sat Feb 05, 2011 4:22 pm 
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Jeremy, how did you get hold of Canon 500D's portraits? :lol:

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PostPosted: Sat Feb 05, 2011 4:30 pm 
They're my shot :wink:


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PostPosted: Sat Feb 05, 2011 5:41 pm 
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You need a sharper lens! :wink:

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PostPosted: Sat Feb 05, 2011 6:32 pm 
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Hey, is that a tilt-swirl lens? :P :lol:

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PostPosted: Sat Feb 05, 2011 7:13 pm 
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The viewfinder offers 95% coverage, I believe. Not good.

I find that autofocus does not always focus where I want it to, and I prefer to use manual mostly.

I was considering posting the photo, but I think as we have destinguished the issues (low speeds etc), the question has already been answered.

This has happened with other shots also.

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