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Old Sep 25, 2005, 9:30 PM   #1
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Hi all,

Bought a Sony T7 and can't take a sharp pic with it... any hints?



ta



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Old Sep 25, 2005, 9:46 PM   #2
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Are you taking the photos indoors when they're blurry, and are you using the flash?

If not, your shutter speeds are going to be too slow to prevent motion blur from camera shake (a well lit interior is very dim to a camera, and it must keep the shutter open long enough to expose the image).

So, a flash is going to be needed indoors with most compact models. The flash on a model like the T7 is relatively weak, so you'll need to make sure you're very close.

If you can't use a flash, you can try increasing your ISO speed to 400 (which will mean you'll have more noise). Then, use a popular tool like Noiseware or Neat Image to reduce it later. That will give you faster shutter speeds (each time you double the ISO speed, the camera can use shutter speeds twice as fast in low light without a flash).

But, even at higher ISO speeds, you may not be able to get shutter speeds up fast enough without a flash in many indoor conditions (unless you've got a very smooth "trigger finger" and carefully control your breathing during the shot). A tripod is usually needed with a compact model indoors without a flash (but, that's not going to help with motion blur from subject movement).

Make sure to stay on the wide end of the zoom if you can't use a flash (because more light reaches the camera's sensor not using any zoom, and any motion blur from camera shake is amplified as more zoom is used).

I'm making some assumptions on what your problem might be (since one of the most common causes of blur, is when new camera owners turn off their flash indoors). Let us know if something else is going wrong (and you may want to post some examples).


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Old Sep 25, 2005, 9:55 PM   #3
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ahhh thanks for that... faster shutter speed is what i'm looking for.

will give it a go and see how it is.

most of the pics were outdoor no flash... and i assumed they would make a camera like this one pretty automatic... just needs a bit of adjustment.

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Old Sep 25, 2005, 10:07 PM   #4
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If you're trying to take photos without a flash indoors, you may not be able to get acceptable results without a flash. Again, a well lit interior is very dim to a camera. The human eye adjusts much better to low light (and inside in typical lighting is low light).

A DSLR using a bright lens is usually required for existing light photos without a flash indoors (since these can shoot at much higher ISO speeds compared to a compact digital camera).

But, give it a shot and see what you get at higher ISO speeds, holding the camera as steady as possible, very smoothly squeezing the shutter button and holding the camera still until you're sure the camera has finished taking the photo. Using continuous mode (where you hold down the shutter button for a burst of shots) is another way to increase you percentage of keepers (chances are, one shot is going to have less blur compared to another).

It's going to be tough getting shots without a flash unless lighting is very good, *and* you're very good (or using a tripod). Even then, you'll get motion blur if your subjects are not stationary.

Your best bet with a compact model is to use the flash (shutter speeds are not as critical using a flash, since the flash burst itself can freeze the action, provided it's the primary light source).

But, you don't want to try and get too much ambient light (by increasing ISO speed) if you are using a flash (otherwise, you're going to get some ghosting, since ambient light may be contributing too much to the exposure). Also, you'll probably need to be within about 6 or 8 feet with a model like the T7 to be within acceptable flash range (provided you stay at the wide end of the lens, using your feet for zoom).


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Old Sep 25, 2005, 10:19 PM   #5
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TheBling wrote:
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most of the pics were outdoor no flash... and i assumed they would make a camera like this one pretty automatic... just needs a bit of adjustment.
That's different then (I just noticed your edit adding this part). It's probably your shutter speeds, but lets see what they were, and why they were too slow outdoors (and rule out any focus issues).

I'd post an example of what you're referring to here. Then, we can see the settings used for the photo and can tell what's going wrong.

If you don't have an editor that can downsize the images, download Irfanview (it's free) from http://www.irfanview.com and make sure to download the free plugins, too.

Open a problem image, then go to Image, Resize/Resample, and make it about 640x480.

Then, use the "File, Save As" menu to save it under a different filename (you don't want to overwrite the original). Make sure that the boxes for retaining all of the information (especially the EXIF) are checked (that's how we'll be able to see your camera settings, as they'll be embedded in the image header).

Leave the JPEG quality set to around 85 to 90 (that shouldl be fine for a downsized image). You'll see a JPEG quality slider when you use the File, Save As" menu choice to save the downsized image. We only allow a maximum image size of around 230k to be attached to posts here.

You can also see the camera settings yourself by looking at "Image, Information, EXIF" after opening an image with irfanview.

That will tell us what shutter speeds you were getting with the problem photos, so if we can see if that's what is going wrong.

You can then post an example (one that you downsize) in this thread. When you are making a post, you'll see a Browse Button at the bottom of your entry screen that will let you attach it to your post.

As an alternative, if you have a web site, post an unmodified, full size image there and just include a link to it here so we can see the problem better.

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Old Sep 25, 2005, 10:42 PM   #6
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Thanks Jim,

I went into the sony site and got their manual... i think the problem could be the auto focus feature (you half press the button and it focusses)

I'm pretty sure everyone is going for the full press straight up.....

the manual has a few other hints as well...

thanks for your help on this one though, Jim
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Old Sep 25, 2005, 10:50 PM   #7
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That's possible (Autofocus Issue). Make sure you're selecting the desired focus point, too (sometimes a camera using a multi-zone focus system may select something other than your intended subject).
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