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What am I doing wrong in this picture? - Page 2

post #11 of 34
No the ring is foccus. To change your DoF you need to change your aperature.
    
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post #12 of 34
Quote:
Originally Posted by iCrap View Post
No the ring is foccus. To change your DoF you need to change your aperature.
Actually DOF is controlled by a combination of Shutter Speed, Aperature, and Focal Length, but if he's using the stock lense for T2I, its an 18-55f3.5-5.6 which is not going to be good for depth of field shots that close up.

To the OP you'll want to get a good fast lense f2.8 or below, what you could do for now is get the "nifty 50" which is Canon's 50mm F1.8 prime lense, you can get excellent DOF with this lense, its inexpensive (can be had for 90-100bux) and sharp as all hell. The lense you're using right now just isn't fast enough to get good DOF shot's like you're attempting without huge amounts of light.
post #13 of 34
For instance this shot, shot @ iso200, f2.8, 1/125th @75mm

post #14 of 34
Quote:
Originally Posted by JeremyFr View Post
Actually DOF is controlled by a combination of Shutter Speed, Aperature, and Focal Length, but if he's using the stock lense for T2I, its an 18-55f3.5-5.6 which is not going to be good for depth of field shots that close up.

To the OP you'll want to get a good fast lense f2.8 or below, what you could do for now is get the "nifty 50" which is Canon's 50mm F1.8 prime lense, you can get excellent DOF with this lense, its inexpensive (can be had for 90-100bux) and sharp as all hell. The lense you're using right now just isn't fast enough to get good DOF shot's like you're attempting without huge amounts of light.
Uh yes... to fix his picture he should buy a new lens -.-

OP, yes when you make your shutter speed faster, you reduce the amount of blurring from camera shake. That, or you can use a tripod so you wouldn't have any camera shake at all.

As for the focusing, make sure you select the right AF point for the subject you want to focus on. If not, make sure what you want is in focus in your viewfinder when using manual focus.
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post #15 of 34
Quote:
Originally Posted by JeremyFr View Post
Actually DOF is controlled by a combination of Shutter Speed, Aperature, and Focal Length, but if he's using the stock lense for T2I, its an 18-55f3.5-5.6 which is not going to be good for depth of field shots that close up.

To the OP you'll want to get a good fast lense f2.8 or below, what you could do for now is get the "nifty 50" which is Canon's 50mm F1.8 prime lense, you can get excellent DOF with this lense, its inexpensive (can be had for 90-100bux) and sharp as all hell. The lense you're using right now just isn't fast enough to get good DOF shot's like you're attempting without huge amounts of light.
The 50mm f1.8 is an FD lens. The T1i takes EF/EFS lenses...
post #16 of 34
Quote:
Originally Posted by kiwiasian View Post
The 50mm f1.8 is an FD lens. The T1i takes EF/EFS lenses...
There is an EF version that I'm sure 80% of Canon photographers have/have had. I'm looking at mine right now.

OT: maybe OP is trying to focus too close? I can't see anything that is in focus. That or the camera isn't still/the shutter speed is too low.
Edited by cgg123321 - 6/3/11 at 4:27pm
 
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post #17 of 34
looks like the image is either too close or you missed focus, and theres some motion blur cause you shot at 1/10.

Quote:
Originally Posted by JeremyFr View Post
Actually DOF is controlled by a combination of Shutter Speed, Aperature, and Focal Length, but if he's using the stock lense for T2I, its an 18-55f3.5-5.6 which is not going to be good for depth of field shots that close up.
actually DOF has nothing to do with shutter speed.
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post #18 of 34
Quote:
Originally Posted by mz-n10 View Post
actually DOF has nothing to do with shutter speed.
This
But everything else he said was correct.
Oh you also have to take into account sensor size.
post #19 of 34
Thread Starter 
Well thanks for all the input thus far guys. How the heck can you tell my shutter speed was at 1/10? The reason I had it low is anything higher and I had to increase the ISO and/or aperture and heard anything above 1600 ISO has poor image quality. The lighting was darker, and the stock flash looked horrible on it.
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post #20 of 34
Quote:
Originally Posted by JeremyFr View Post
To the OP you'll want to get a good fast lense f2.8 or below, what you could do for now is get the "nifty 50" which is Canon's 50mm F1.8 prime lense, you can get excellent DOF with this lense, its inexpensive (can be had for 90-100bux) and sharp as all hell.
Without extension tubes, the nifty is a terrible choice for macro shots.

Quote:
Originally Posted by kiwiasian View Post
The 50mm f1.8 is an FD lens. The T1i takes EF/EFS lenses...
As was previously mentioned, there is a 50/1.8 in EF mount, as well as a 1.4 and 1.2L. All of them suck for macro.
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