Thanks for reply, I allready check (I think) all the post from HWC, about digital camera.
I know this Kodak DC - 280 has a good reputation here on this forum. Maybe not only.
I want to ask you what is mean exactly this sensivity and where is usefull for, becouse this camera has only ISO 70, compare with some other brand name (from ISO 100 to 400).
I'm interesting if I can take some pic during the night time.
------------------ If some one betrays you one, it his fault; If he betrays you twice it is yours
If some one betrays you one, it his fault; If he betrays you twice it is yours
I'd imagine it'd be fairly expensive, but my favourite would most certainly have to be the Olympus Camedia E-10.
The new CamediaTM E-10 is the world's first 4-megapixel filmless digital SLR for under $2,000 and combined with an 11+ MB file size, TruePicTM technology and the first ED glass fully multi-coated lens.
It is rated #1 in digital cameras under $500.
It is rated among the best in color testing.
It is rated among the best in outdoor shooting.
It is rated among the best in indoor shooting.
And it is under $500. (including a battery charger, 32MB of flash memory, ZOOM, for a 2.3Mpixel)
Olympus digital cameras are a$$ when you do indoor shooting. Otherwise they are good candidates also. But the built quality is not always good.
ISO does refer to the film sensitivity - in effect it gives you a relative measure of how much light will be needed to capture the frame. IE, using ISO 400 film requires 1/4 the amount of light as ISO 100, and 1/2 the amount as ISO 200.
This means that you can use higher shutter speeds with faster film if you want to capture fast movement like sports action, or night-time shots where there is very little light. This is also why the ISO rating is also referred to as the film speed.
The other advantage is that under the same conditions (light level, focal length, etc.) the higher-rated ISO film will allow you to set a smaller aperture (higher number), which gives you a larger depth of field. This just means what % of the photo is in focus. Say you're on holiday & you want to take a photo of your wife, with the mountains in the background. Using a really large aperture (small number) will get your wife in focus and leave the background blurred, whereas a small aperture will get both in focus. A large aperture is used most often with portraits, a small one with landscapes. The faster film allows you to do both more effectively, without having to change the film.
Note though that faster is not alwas better. With faster film you will find it very difficult to maintain the image quality when you try to enlarge the image. This is simply because the film has had less time to take in the image detail and so when you enlarge the pic by more than about 200%, it will get noticeably grain which can really spoil an otherwise-awesome photo.
In the case of digital cameras, the principal is still the same, but since you're not using film but rather an aray of pixels, I would expect the grain effect with faster ISO settings to be accentuated.. simply because you're already transferring an image into little dots.. this is just a guess though, I haven't had enough experience with digital cameras yet to say for sure.
As far as I'm aware, most of the more modern digitals give you the option of manually selecting the ISO.. which can be very useful indeed.. say you want to take a photo with the mountains in the background, just like before. You set a high ISO (~400) and take a flly focused shot. Then you change your ISO to 100 and take a close-up portriat of your wife, which you can then blow up to poster size with minimal graining effect. Of course enlargements are always a bit trickier with digitals, but you get the idea.
Anyway hope that helps!!! (Sory about the rambling!! )
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