Blur

Vanquish-Storm · 24 Aug 2011 at 13:37

Hey guys,

Im getting a bit of blur in some of my photos that i take but not in others. What could be the reason? Is it incorrect depth of field? Camera shake? Or just me moving the camera before the picture has been done??

Ill try to get some photos up later of what i want the photo to look like (sucessful ones) and some that come out blurred (unsucessful ones)

Paul11 · 24 Aug 2011 at 13:39

could be any of those things you mentioned.

edit:

could be the shutter speed is too slow, and or/ you are moving (or your subject is moving)

wouldnt have thought depth of field would be the reason unless you are using a lens with a huge aperture

need to see the pics

neil_g · 24 Aug 2011 at 13:55

Paul11 said:
could be any of those things you mentioned.

need to see the pics

agreed. attached exif (camera settings data) would be handy too

Vanquish-Storm · 24 Aug 2011 at 14:10

Its only a bridge camera. Ill upload some pics later guys

Vanquish-Storm · 24 Aug 2011 at 22:16

Heres some examples,

Focal point correct

Blured

Raikiri · 24 Aug 2011 at 22:24

It misfocussed, just behind it.

Vanquish-Storm · 24 Aug 2011 at 22:26

Raikiri said:
It misfocussed, just behind it.

Is that from my doing?

Raikiri · 24 Aug 2011 at 22:29

Partly, you have to make sure the focus point is where you need it to focus, make sure you're using the right one when focussing.

If it's set to auto rather than one specific point the camera will automatically choose what it thinks is right.

Vanquish-Storm · 24 Aug 2011 at 22:31

Hmmm ill have to see if my camera has multiple focus points and if i can switch to manual.

Vanquish-Storm · 24 Aug 2011 at 22:34

Another example might be slightly differant.

Blurred

Not so blurred

Phate · 24 Aug 2011 at 22:39

That last one is shutter speed related

Vanquish-Storm · 24 Aug 2011 at 22:42

Phate said:
That last one is shutter speed related

How can that be resolved? Higher or Lower?

Phate · 24 Aug 2011 at 22:47

Higher.

Due to the camera/hand shake its blurred, higher shutter speed reduces this.

General rule, you don't shoot a lower shutter speed than the focal length your using.

For example, if I'm shooting at 200mm I don't use a shutter speed lower than 1/200 - 1/250

An Exception · 24 Aug 2011 at 22:49

@ Op

What was the shutter speed?

Had a similar issue with a 50D once, basically the high pass filter that sit's on the sensor was on the edge of tolerance, so sometimes it would focus, and others it would be all over the place.

All AF systems get confused some of the time though, and you can't expect perfect focus on every shot as occasionally you will always get a duff one.

Vanquish-Storm · 24 Aug 2011 at 22:54

Ejizz said:
@ Op

What was the shutter speed?

Had a similar issue with a 50D once, basically the high pass filter that sit's on the sensor was on the edge of tolerance, so sometimes it would focus, and others it would be all over the place.

All AF systems get confused some of the time though, and you can't expect perfect focus on every shot as occasionally you will always get a duff one.

Exposure 0.022 sec (1/45)
Aperture f/5.6
Focal Length 90 mm
ISO Speed 64

Vanquish-Storm · 24 Aug 2011 at 22:55

Phate said:
Higher.

Due to the camera/hand shake its blurred, higher shutter speed reduces this.

General rule, you don't shoot a lower shutter speed than the focal length your using.

For example, if I'm shooting at 200mm I don't use a shutter speed lower than 1/200 - 1/250

Okay cool that makes sense

Thanks