Always blur image


Jeronleow

New Member
Mar 11, 2008
82
0
0
33
Bukit Batok
#1
Hi guys. I would like to ask why is it that all my pictures turn out slightly blur even when my shutter speed is fast enough and I am holding very still? When I say blur I meant the edges are "soft". I would say I have rather steady hands but all the picture still turns out slightly blur! Care to share? Thanks!
 

Dec 12, 2009
1,961
2
0
#2
What you can do is put your camera on a tripod, do mirror lockup and either cable release or 2 sec timer take a shot. Post your picture here and it would be alot easier for fellow members to analyse. It's not easy to give you precise comments based on your vague description.
 

Reportage

Senior Member
Nov 24, 2008
5,785
2
0
#4
perhaps you need to step down the aperture...eg. not all lens are sharp at f/2.8 (wide open) even the high end ones.

what you can do is do your own tests or book appointment with CSC.
 

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ZerocoolAstra

Senior Member
Mar 13, 2008
9,522
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rainy Singapore
#5
Jeronleow said:
Hi guys. I would like to ask why is it that all my pictures turn out slightly blur even when my shutter speed is fast enough and I am holding very still? When I say blur I meant the edges are "soft". I would say I have rather steady hands but all the picture still turns out slightly blur! Care to share? Thanks!
An example photo would go a long way! :)
 

kklee

New Member
Aug 13, 2004
403
1
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#6
I would think it is quite typical for lenses i.e. the sharpness is best at the centre and tapers off (less sharp) towards the edges. Darkening of the corner/edges (vignetting) also occurs which might be perceived by some to be "blur". Both of these can be different at the various f/stop. Probably you might want to experiment with a smaller f/stop like f/11 to confirm.
 

catchlights

Moderator
Staff member
Sep 27, 2004
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Punggol, Singapore
www.foto-u.com
#7
Hi guys. I would like to ask why is it that all my pictures turn out slightly blur even when my shutter speed is fast enough and I am holding very still? When I say blur I meant the edges are "soft". I would say I have rather steady hands but all the picture still turns out slightly blur! Care to share? Thanks!
post a couple of photos if exif intact, so we able tell what kind of issue more or less.
 

ZerocoolAstra

Senior Member
Mar 13, 2008
9,522
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rainy Singapore
#8
It may well be a DOF issue.
Perhaps the objects at the corners are away from the plane of focus.


Anyway just making wild guesses here. No photo no talk! ;)
 

Diavonex

Senior Member
Sep 23, 2008
3,641
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Admiralty
#10
Things will improve dramatically if you zoom to 24mm and stop down to F5.6 (see vignetting chart).
 

Octarine

Moderator
Staff member
Jan 3, 2008
12,548
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Pasir Ris
#11
Could also be a that the AF sensors locks on something else instead of what you have in mind. Do you use a single AF point or let the camera select (Auto AF point selection)? Please provide more details, we are running out of tea leaves :)
 

NoS77

Senior Member
May 19, 2008
724
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#12
Can it possibly be front back focusing issues?
 

Jeronleow

New Member
Mar 11, 2008
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Bukit Batok
#14
Hi guys thanks alot for the replies! I will post some pics when I get home currently at work :bsmilie:

I am using EFs 18-200mm F3.5-5.6 now. When I see sample pics in this forum with the same lens I am astonished by their sharpness so I bet it must be me :embrass:
 

Diavonex

Senior Member
Sep 23, 2008
3,641
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Admiralty
#15
Hi guys thanks alot for the replies! I will post some pics when I get home currently at work :bsmilie:

I am using EFs 18-200mm F3.5-5.6 now. When I see sample pics in this forum with the same lens I am astonished by their sharpness so I bet it must be me :embrass:
Not the best lens in Canon's stable. See verdict.

"The Canon lens has a couple of weak spots. At 18mm the border resolution is soft and heavy vignetting, extreme barrel distortion and CA problems don't help either. The situation improves significantly at 24mm and 50mm before deteriorating again towards the long end of the range."

http://www.photozone.de/canon-eos/400-canon_18200_3556is?start=2
 

ZerocoolAstra

Senior Member
Mar 13, 2008
9,522
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rainy Singapore
#16
Not the best lens in Canon's stable. See verdict.

"The Canon lens has a couple of weak spots. At 18mm the border resolution is soft and heavy vignetting, extreme barrel distortion and CA problems don't help either. The situation improves significantly at 24mm and 50mm before deteriorating again towards the long end of the range."

http://www.photozone.de/canon-eos/400-canon_18200_3556is?start=2
awaiting TS' photos.
No doubt the superzoom isn't the sharpest lens in the line-up, but it shouldn't be too shabby either. I suspect there are things that can be done to improve sharpness, either prior to image capture, or during post processing. If all fails then can blame equipment :devil:
 

Apr 26, 2010
727
0
0
34
Telok Blangah
#17
Hi guys. I would like to ask why is it that all my pictures turn out slightly blur even when my shutter speed is fast enough and I am holding very still? When I say blur I meant the edges are "soft". I would say I have rather steady hands but all the picture still turns out slightly blur! Care to share? Thanks!
You shoot in RAW?
 

Jeronleow

New Member
Mar 11, 2008
82
0
0
33
Bukit Batok
#20
Sorry I am a noob how do you post a pic with the EXIF? Do you printscreen the picture with the properties or there's a proper way to do?

Anyway for the time being I will post the EXIF manually.



F-Stop - f8
Shutterspeed - 1/13
ISO - 500
Focal length - 28mm



F-Stop - f8
Shutterspeed - 1/400
ISO - 100
Focal length - 100mm



F-Stop - f8
Shutterspeed - 1/40
ISO - 100
Focal length - 120mm

I realised after reading the EXIF that the last pic may be too slow a shutter speed for the focal length. Thank guys and please don't laugh at my pics!! :)
 

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