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10/24/2004 09:50:26 PM · #1 |
| Does anyone have any trouble getting tack sharp images with the 10d? This is my first dslr so i dont know if perhaps im just not using it right. But out of a series of pictures that i'll take there are probably 2 or 3 that dont really come out as sharp as i would expect them to. I dont know if like i said before, It might be that i dont know how to use the camera. |
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10/24/2004 09:53:57 PM · #2 |
Sharp images are dependent on a lot of things.
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10/24/2004 09:54:53 PM · #3 |
show us some examples.
Originally posted by namdohtem:
Does anyone have any trouble getting tack sharp images with the 10d? This is my first dslr so i dont know if perhaps im just not using it right. But out of a series of pictures that i'll take there are probably 2 or 3 that dont really come out as sharp as i would expect them to. I dont know if like i said before, It might be that i dont know how to use the camera. |
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10/24/2004 09:55:37 PM · #4 |
Without some pretty extensive information, it's hard to say, but most likely if it affects only some of a series of phtos (with the same lens) it may be focus error.
The camera may inadvertently lock on a background object that has higher contrast than the subect, or may simply misfocus slightly in poor lighting.
Another contributing factor may be the lens. If you are shooting the series and are in an automatic mode, if the camera asks for the widest aperture the result will be softer, maybe dramatically so if the lens is not of high quality. |
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10/24/2004 10:00:03 PM · #5 |
This question comes up every now and then.
DSLRs, and certainly the 10D's default sharpness setting, is purposely less sharp than what many people may be accustomed to coming from a compact digicam. The idea is, that sharpening can be better done in Photoshop (usually via Unsharp Mask) than in camera.
If you, still, feel that your 10D images are insufficiently sharp after having applied USM, it would be very helpful to know what lens you used at what settings.
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10/24/2004 10:31:39 PM · #6 |
A couple things to consider:
o As zeuszen suggested, the default sharpening setting is significantly less than the default sharpening on
most compact or prosumer digital cameras.
o The very short lens used with small sensor digital cameras provide a huge depth of field. Larger sensors
require longer lens and have a shorter depth of field. Look to see if some part of the image is in focus.
o In it's default setting the 10D will automatically select from one of it's autofocus areas, usually the one
with the highest contrast... which may not be the one that you wanted to use. I set it to always use the
center sensor so I know where it is going to focus.
o The 10D has larger autofocus sensors which may not alway focus as you expect. You'll learn to carefully
select your focus point so the area of greatest contrast is in your target focus plane.
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10/24/2004 10:40:09 PM · #7 |
Exactly: the 10D does not deliver the sharpest image at its default settings. It is best to use manual focus but if you chose the af then activate the center af and focus on subject and while holding down the shuter, recompose the image.
I do not do any in camera sharpening and do the ceremony in PS.
Message edited by author 2004-10-24 22:40:34. |
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10/24/2004 11:17:34 PM · #8 |
| This is a timely topic as I usually have the center focus point selected on my 300D, but changed it to "all" while doing some shooting this weekend. I was hoping for a deeper depth of field (I was using f16 if memory serves) and I thought maybe that more focus points would mean more in focus. But I still notice some softness sometimes and I just don't understand why. I was using the Tamron 28-75 2.8XR Di lens. So I'm thinking that using all the focus points had the opposite of my intended effect? |
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10/25/2004 02:22:42 AM · #9 |
Originally posted by digistoune:
This is a timely topic as I usually have the center focus point selected on my 300D, but changed it to "all" while doing some shooting this weekend. I was hoping for a deeper depth of field (I was using f16 if memory serves) and I thought maybe that more focus points would mean more in focus. But I still notice some softness sometimes and I just don't understand why. I was using the Tamron 28-75 2.8XR Di lens. So I'm thinking that using all the focus points had the opposite of my intended effect? |
I believe to do what you expected you'd have use A-DEP mode. This mode tries to bring objects under all focusing points into focus.
If in any other mode, when all focusing points are active, the object closest with the most contrast is usually the one chosen to focus on.
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10/25/2004 02:44:52 AM · #10 |
I keep my 10D on single point focus, I hav the *button set to move the focus point around. That way I have full control of my focus, not relying on the AI.
The 10D does produce soft images by default, but use a good lens and good sharpening tool then the results are outstanding.
The glass is probably the biggest factor though.
Message edited by author 2004-10-25 03:26:57. |
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10/25/2004 06:40:06 AM · #11 |
I can't remember if my old 10D had this, but on the 20D there is a custom function that allows you to sharpen in camera, as well as ajust the colour saturation.
However, it is not the way to go, as once done in camera you are stuck with it. As someone else stated above, it is better to do it yourself in PS or similar.
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