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sharp pictures
Hello everybody,I have a few questions about my camera ,and I need your help....

I have a canon 40 d and a sigma 30mm f/1.4 lens and the kit lens a canon 17-55mm..

What i'm trying to do is take some pictures of my girl friendI can take sharp pictures when i'm close to her but when i'm trying to take pictures of her from a distance of about 3-4 meters so I can take a picture standing I can't get any decent picturei also use an external flash a canon 580 EX II and a tripod and i'm using a remote to reduce movements.I just can't get a sharp picture of her face and clothesWhat am I doing wrong? I'm using p program and AV.

Thanks for any help.

Sven..

Comments (10)

Sven1976 wrote:.

I just can't get a sharp picture of herface and clothesWhat am I doing wrong? I'm using p program and AV.

A) Is she near the corner of frame (corner softness)?.

B) Check your shutter speed too. The issue might be that camera is choosing too small a shutter speed or high ISO (due to dark background) leading to subject movement or NR softness.Best Wishes, Ajayhttp://picasaweb.google.com/ajay0612..

Comment #1

Don't worry about sharpness. As long as it is in focus, it's a non-issue...

Comment #2

Thanks a lot for your answer.......

I would like to upload a pic so you could give me your opinion..i'll try to see how I can do this.

Thanks again sven.

Image control:Zoom outZoom 100%Zoom inExpand AllOpen in new window..

Comment #3

Ok here is the picture again a little bit bigger.

Thanks for any replysven.

Image control:Zoom outZoom 100%Zoom inExpand AllOpen in new window..

Comment #4

There you go. ISO400, Shutter 1/5sec!1. Too slow to get a sharp pic. (Ideally should be higher than 1/60sec)2. ISO too high (Try at ISO100). Brighten up man..

Sven1976 wrote:.

Ok here is the picture again a little bit bigger.

Best Wishes, Ajayhttp://picasaweb.google.com/ajay0612..

Comment #5

Looks plenty sharp to me. Pretty impressive if it were handheld..

You can't go down to ISO 100 and increase the shutter to 1/60 second! That would be six or seven times darker!..

Comment #6

Absolutely right. That is why I said "Brighten up" .

Martin Caie wrote:.

You can't go down to ISO 100 and increase the shutter to 1/60 second!That would be six or seven times darker!.

Best Wishes, Ajayhttp://picasaweb.google.com/ajay0612..

Comment #7

I note that you used flash in Av mode. Did you know that with Canon DSLR's when you are using flash in Av or Tv mode the camera assumes that you want fill in flash only and meters for the background? That is why you have such a slow shutter speed. If you want full flash you need to use M, A or P..

Did you shoot this particular shot from a tripod? Did you use mirror lockup? If you didn't you could have some vibration from the tripod..

Did you accidntally have the focus set to manual? I have had this happen to me sometimes, the switch accidentally gets moved to manual and it takes quite a few shots before I realise that the camera isn't focusing.Chris R..

Comment #8

As Chris R UK said, in Av the camera uses the flash for fill and uses slow shutter speeds to catch the ambient light, at 1/5 second, the tripod will stop camera motion, but people, even standing apparently still or sitting, will have enough inherent motion to look blurred..

If you have the flash in ETTL mode, then M on the camera is like a semi-auto mode. You can set the shutter speed to something in the 1/125 second range to stop person motion blur, set the aperture for what ever depth of field you want, and the flash will output enough light automatically to cover what it thinks is the right exposure. If the flash doesnt guess the correct exposure (because of excessively light or dark object in the frame) then you can use FEC (flash exposure compensation) to compensate..

If you want less control, then try A or P modes, But Av with a flash is not going to work under the conditions you are shooting..

Brian A...

Comment #9

Thank you very much for all your help...I will try the different settings and post a picture again to see the differences...

And by the way HAPPY NEW YEAR.

Sven..

Comment #10

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