Camera can't focus


Jun 4, 2011
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#1
Ehhh, this may sounds like a stupid question to many :embrass:
But am new to SLR, so pls shed some light :)

Even when i'm using Av mode or M mode, i'm not able to focus, as such, it doesn't allow me to take a shot at all.
Issit because i'm too near the object?
I am trying to focus the object close with a low aperture to create the bokeh effect.
Even when i switch back to Auto mode, i can't focus too.
What's wrong? :confused:

Thanks
 

spree86

Senior Member
Feb 3, 2009
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Bishan
www.flickr.com
#2
Ehhh, this may sounds like a stupid question to many :embrass:
But am new to SLR, so pls shed some light :)

Even when i'm using Av mode or M mode, i'm not able to focus, as such, it doesn't allow me to take a shot at all.
Issit because i'm too near the object?
I am trying to focus the object close with a low aperture to create the bokeh effect.
Even when i switch back to Auto mode, i can't focus too.
What's wrong? :confused:

Thanks
Take note of the minimum focusing distance of a lens. If you are too close, the lens cannot focus on the subject and you will be unable to trigger the shutter.
 

Jun 4, 2011
36
0
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#4
Take note of the minimum focusing distance of a lens. If you are too close, the lens cannot focus on the subject and you will be unable to trigger the shutter.
i'm using the 18-135mm lens.
The object can be ard 10cm away from the lens; and I can't focus already.
Sometimes, you can auto focus "motor" trying very hard, but it just couldn't focus.
Similarly to the flash light. Sometimes, it flicker a few times, but just can't focus and capture the shot.
 

Cowseye

Senior Member
Mar 7, 2010
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#6
Lol, the min focus distance I ever vaguely heard of is 18cm. Assuming u calculate the front of ur lens, it still only like 20cm from sensor. It's way too short, move back another 10 to 15cm
 

bonrya

Senior Member
Dec 16, 2010
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#7
You're either too close to the subject or shaking too violently. :bsmilie:
 

shierwin

Senior Member
Dec 29, 2008
3,487
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East Coast
#8
i'm using the 18-135mm lens.
The object can be ard 10cm away from the lens; and I can't focus already.
Sometimes, you can auto focus "motor" trying very hard, but it just couldn't focus.
Similarly to the flash light. Sometimes, it flicker a few times, but just can't focus and capture the shot.
EFS 18-135mm minimum focusing distance is 45cm
 

Jun 4, 2011
36
0
0
#9
shierwin said:
EFS 18-135mm minimum focusing distance is 45cm
Oh...wow :) Thanks, this is very useful information. Now it makes sense.
 

willdoang

Senior Member
Jun 8, 2010
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#10
i'm using the 18-135mm lens.
The object can be ard 10cm away from the lens; and I can't focus already.
Sometimes, you can auto focus "motor" trying very hard, but it just couldn't focus.
Similarly to the flash light. Sometimes, it flicker a few times, but just can't focus and capture the shot.
too close la, no lens by default got min focus 10cm, the closest still date only 19cm min focus, unless u use extention tubes now that makes diff, ur lens min focus is 45cm as mentioned by other, so ya 10 cm is too too close liao lol XD
 

spree86

Senior Member
Feb 3, 2009
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#11
too close la, no lens by default got min focus 10cm, the closest still date only 19cm min focus, unless u use extention tubes now that makes diff, ur lens min focus is 45cm as mentioned by other, so ya 10 cm is too too close liao lol XD
10cm away from lens is not the same as 10cm min. focusing distance. The distance starts from the sensor. Nonetheless, its too near to focus
 

Rashkae

Senior Member
Nov 28, 2005
19,105
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#12
I see it all the time... Newbie DSLR owners in coffee shops, wanting to take a picture of their food/cake/coffee and wondering why the camera can't lock focus. :p


Oh, FYI, there is no such thing as a "bokeh effect".
 

Diavonex

Senior Member
Sep 23, 2008
3,641
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Admiralty
#15
too close la, no lens by default got min focus 10cm, the closest still date only 19cm min focus, unless u use extention tubes now that makes diff, ur lens min focus is 45cm as mentioned by other, so ya 10 cm is too too close liao lol XD
My 30mm Macro have a minimum focusing distant of 13mm without extension tube :)

http://www.sony.com.sg/product/sal30m28
 

ziploc

New Member
Jan 17, 2002
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#17
[Moderator's note]

Please refraint from too much OT, thanks.
 

evilorgi

Senior Member
Nov 9, 2007
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Tampines
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#18
i'm using the 18-135mm lens.
The object can be ard 10cm away from the lens; and I can't focus already.
Sometimes, you can auto focus "motor" trying very hard, but it just couldn't focus.
Similarly to the flash light. Sometimes, it flicker a few times, but just can't focus and capture the shot.
erm, 10cm is too near for the 18-135 lens to focus liao... trying shifting your subject further away from the cam... there is also a MFD, pay attention to that...
 

Tucksoon

New Member
Dec 15, 2003
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#19
Anyway I met the same issue when I first used 600D. That time I thought camera or lens spoilt liao :p
 

Jun 4, 2011
36
0
0
#20
Guess I'll continue to sound silly through my learning process...
Please be patient with me ;)

And thanks for the quick replies! :xmas:
 

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