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#1
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why are some images sharp and others not
i'm shooting my artwork with an fz30. settings are extra fine jpg, iso
80 etc etc,,, and i tried to set everything thing else i could to get the best sharpness. 1...with ZOOM + MF, i am able to focus on the weave of the canvas(as seen through enlarged focus assist window which i have set to full screen)....very nice and sharp, about as sharp as i can get it. "P" is set for exposure. 2...i zoom out to get the whole painting.....and shoot 3...i place the other paintings up and shoot. i don't change anything on the camera, except zooming in or out to accomodate a different size canvas. 4..the result,,,,,, two paintings are sharp, one is ok, one is not, imo. in fact the least sharp image is really unacceptable at the normal image size. it is most definitely a soft image. the point being,,,SHOULDN'T THEY ALL BE FOCUSED THE SAME AT LEAST??? or do i have to focus on each painting seperately(doesn't seem right to me),,,or is there a better way to do what i'm doing. |
#2
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why are some images sharp and others not
You might need to focus after you zoom out.
-- Joan http://www.flickr.com/photos/joan-in-manly wrote in message ups.com... : i'm shooting my artwork with an fz30. settings are extra fine jpg, iso : 80 etc etc,,, and i tried to set everything thing else i could to get : the best sharpness. : : 1...with ZOOM + MF, i am able to focus on the weave of the canvas(as : seen through enlarged focus assist window which i have set to full : screen)....very nice and sharp, about as sharp as i can get it. "P" is : set for exposure. : : 2...i zoom out to get the whole painting.....and shoot : : 3...i place the other paintings up and shoot. i don't change anything : on the camera, except zooming in or out to accomodate a different size : canvas. : : 4..the result,,,,,, two paintings are sharp, one is ok, one is not, : imo. in fact the least sharp image is really unacceptable at the normal : image size. it is most definitely a soft image. : : the point being,,,SHOULDN'T THEY ALL BE FOCUSED THE SAME AT LEAST??? or : do i have to focus on each painting seperately(doesn't seem right to : me),,,or is there a better way to do what i'm doing. : |
#3
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why are some images sharp and others not
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#4
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why are some images sharp and others not
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#5
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why are some images sharp and others not
wrote in message
ups.com... i'm shooting my artwork with an fz30. settings are extra fine jpg, iso 80 etc etc,,, and i tried to set everything thing else i could to get the best sharpness. Hi. I am a little surprised, (very little), that the advocate for the absolute superiority of this camera, has not contributed any usefull hints about how you should be using it to obtain the quality you need. If you change the Zoom setting the lens will need to be re focussed, each and every time. Are you using a Sturdy Tripod? Are you using some sort of remote release or delayed action? Are you and everyone else in the room staying still, before and during the exposure? If not then there will be a very strong possibility of Camera Shake, as well as your poor focus. You are aware, I hope, that there will be some optimum settings of the lens, for both Zoom and Aperture. You should be using those settings and moving the camera to get the correct framing, and adjusting the shutter speed to get that optimum aperture. You will also, of course, not be using the full frame, because any lens faults will be more evident at the edges. Roy G |
#7
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why are some images sharp and others not
Two things spring to mind....
First, not all zooms retain focus through their zoom range... Second, are all the paintings mounted the same and exactly the same distance from the camera? With a longish lens and available light you may be using a wide aperture - this will give very little depth of field. Half an inch out will make a difference here. Use a solid tripod, a small aperture (f11 ish) and a cable release... Best to focus on each picture individually - are you sure the autofocus is off? Guy wrote in message ups.com... i'm shooting my artwork with an fz30. settings are extra fine jpg, iso 80 etc etc,,, and i tried to set everything thing else i could to get the best sharpness. 1...with ZOOM + MF, i am able to focus on the weave of the canvas(as seen through enlarged focus assist window which i have set to full screen)....very nice and sharp, about as sharp as i can get it. "P" is set for exposure. 2...i zoom out to get the whole painting.....and shoot 3...i place the other paintings up and shoot. i don't change anything on the camera, except zooming in or out to accomodate a different size canvas. 4..the result,,,,,, two paintings are sharp, one is ok, one is not, imo. in fact the least sharp image is really unacceptable at the normal image size. it is most definitely a soft image. the point being,,,SHOULDN'T THEY ALL BE FOCUSED THE SAME AT LEAST??? or do i have to focus on each painting seperately(doesn't seem right to me),,,or is there a better way to do what i'm doing. |
#8
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why are some images sharp and others not
wrote:
the point being,,,SHOULDN'T THEY ALL BE FOCUSED THE SAME AT LEAST??? or do i have to focus on each painting seperately(doesn't seem right to me),,,or is there a better way to do what i'm doing. Unless you paintings are precisely positioned the same each time, you need to precisely focus each time. Precision placement is probably not as easy as precision focus, so go for the latter. Other things can help too, but I'm not familiar with your camera, so some of this may or may not be possible. You want adjust lighting and shutter speed to allow using the optimum f/stop of your lense. Generally that will be about f/8. Some lenses will also be sharp at f/5.6, and some might even be at f/11 too. But the farther down you stop, the less critical the focus is! Hence while f/5.6 might well be as sharp as the lense gets, at f/8 or even f/11 the depth of field is greater and therefore things like edges (where the lense exhibits curvature of field) will likely be in better focus. Obviously the benefits, and the specifics, vary from one lense to another. Hence try shooting a few at f/5.6, some at f/8.0, and some at f/11 and see if it makes a difference. Another point is that if you happen to be using shutter speeds that end up down in the 1/10 to 2 second range, your images are more suseptable to vibration from the shutter mechanism of the camera. Once again, this is very specific to your particular setup, and you may or may not actually see or be able to control any effects. Whatever, solid tripods are wonderful things! (On that note I might add that if you do a lot of this, investing in an old Majestic tripod might be well worth your trouble. They are not suitable for backpacking, and hence old ones sell relatively for peanuts.) -- Floyd L. Davidson http://www.apaflo.com/floyd_davidson Ukpeagvik (Barrow, Alaska) |
#9
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why are some images sharp and others not
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#10
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why are some images sharp and others not
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