Question about Sony Cyber-Shot DSC-F717 Digital Camera

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Deapth Of Field

Is there any way to adjust the depth of field when using the macro setting on my Sony 717?

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Re: Deapth Of Field

Yes, use manual setting and stop down your aperture setting. This was probably f/2,8 or even 2,0. You'll need more light though or other wise a slower shutter speed to compensate for the more closed down aperture. This is a standard issue with macro and worse off with digital due to the inherent relatively narrower DOF that comes with a small image sensor.

Posted on Sep 13, 2005

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Close-ups of jewellery


Are you handholding the camera? For macro photography you almost have to have the camera on a tripod or other stable support.

Is everything blurry? That probably indicates camera motion since I assume the jewelry isn't moving. If part of the picture is sharp, probably in the center, then it's a depth of field issue. The camera focuses a certain distance away, and anything not at that distance (closer or farther away) tends to blur. Unfortunately there's not much you can do to control depth of field with a point&shoot camera. See http://www.fixya.com/support/r9564373-controlling_depth_field.

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How to isolate the background with finepix s2950


You're looking for what's called a narrow depth of field. The depth of field is controlled by three factors.
The shorter the focal length of the lens the wider the depth of field. To decrease the depth of field, zoom in to a longer focal length (to the telephoto end of the range).
The closer you are to the subject the narrower the depth of field. To decrease the narrow field, move closer to the subject. Also, separate the subject from the background as much as possible.
The wider the aperture the narrower the depth of field. Unfortunately the lens on your camera does not have a particularly wide aperture.
In addition to all that, the sensor on your camera is much smaller than the sensor on a dSLR or most film cameras. This means that the lens on your camera is much shorter than would be used on those larger cameras. From the first point above, a shorter lens gives a wider depth of field. The point is that a compact camera simply cannot narrow the depth of field nearly as much as a larger and more sophisticated camera.

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1 Answer

How do i get a clear shot of an object with a blur effect on the background with my canon powershot s90? if i am at the custom setting,... how do i get it programmed???


You're seeking what's called a "narrow depth of field." Depth of field is controlled by three factors: focal length of the lens, the lens aperture (f/stop), and distance from the camera to the subject.

The longer the lens, the narrower the depth of field, The larger the aperture, the narrower the depth of field. The closer the distance, the narrower the depth of field.

Unfortunately, the lens on the S90 is a 6-22.5mm zoom, and a lens that short is going to give you a rather wide depth of field in all cases except extreme closeups.

Here are some things you can TRY to get the desired effect:

Set the camera to the sports or portrait mode to get it to try to reduce the depth of field.

Put as much distance between the subject and the background as possible.

Get as close to the subject as possible.

Zoom in as much as possible. (I know this conflicts with the previous one.)

Oct 14, 2010 | Canon Digital Cameras

2 Answers

Hello! I have a Nikon coolpix p1 and i use it to macro shots of teeth( I am dental master degree student) it is very esential for my work. However almost all my photos come out either blurry or out of...


Okay, if you're getting sharper pictures with a stable camera, that indicates that the shutter speed is too slow. You can get a faster shutter speed by using a higher ISO. You'll get noisier pictures, though.

Up close, you're not going to get much depth-of-field, so you can also try opening up the aperture (small F/numbers). You can also try to get more light onto the teeth.

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1 Answer

Blurres LCD image and blurred photos


1 suspect dirt on the lens ensue the lens is cleaned with proper cloth and fluid.
2 suspect auto focus sensor is defective or blocked ensure the little windows on the front are clear and fingers do not cover them while taking pictures.

3 suspect camera is set in macro setting, Macro only has a depth of field of a few centimeters any subject outside this field will be out of focus but his may not be visible on the small viewing screen on the camera but becomes apparent when images are viewed at larger sizes.
change camera setting to landscape or portrait setting.

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2 Answers

How do you take macro photos


Your lens is the limiting factor to take macro photos, the kit lens provided with you camera won't focus very closely, nor it will have decent magnification. There are special purpose macro lenses which can stretch up to and over $1000 for a decent quality one. Tamron's 90mm f2.8 is probably the best value one.

A tripod will be of benefit too, as it slows down the process, so you think about your composition, use manual focus and a small aperture for better depth of focus (field).

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1 Answer

Aperture


Hello,

On digital cameras you set the camera to Aperture priority and then use your spin dial to set the lowest aperture possible and let the camera set the shutter speed.

In basic terms, the lower the aperture number the shorter depth of the vision field that will be in focus. This is called Depth of Field.

If your camera doesn't have an Aperture priority, usually a capital A on the program dial, you are a bit out of luck... that said, almost all cameras today have this feature. Yours may also be accessed by setting the program dial to Closeup or Portrait mode where the camera will use a short Depth of Field to blur out the background.

Hope that helped of fixed your dilemma.
Worldvet

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Sony DSC-P72 close up photos


A common problem is that you have some 3.2 Megapixel (MP) and that image is all of 640x480 or 0.3072 M. That means you could move back from the camera, shoot at 3.2 MP then crop out a 640x480 image that may be in focus.

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