Tema: Re: Q: canon 50D ir ISO?
Autorius: Tomas HVAC
Data: 2010-01-12 16:37:14
nu vat  vat matau ne man vienam maišo tai kd nėra
viršutinės ribos ISO.

bet manau kd dar geriau - privers išmokti.



"Katinas" <gymark@yahoo.com> wrote in message news:hihujs$78k$1@trimpas.omnitel.net...
> Čia truputį... apie tai...
> 
> New to this class of Canon is an Auto ISO setting. It works perfectly 
> for use for scenic photos, but poorly for action. Better than Nikon, 
> Canon's Auto ISO is simply another option in the ISO menu. Worse than 
> Nikon, it cannot be adjusted for desired shutter speeds, which is why 
> Canon's Auto ISO doesn't work for people photos, just scenic photos.
> 
> Canon's Auto ISO, while not adjustable, is much smarter than Nikon's 
> because it automatically shifts itself based on your zoom setting. It 
> doesn't know if you have IS on or off.
> 
> Canon's Auto ISO is optimized to choose lower, cleaner ISOs in exchange 
> for the slowest shutter speed you can hold safely — if your subject 
> holds still, too. If shooting people, kids or action, it will usually 
> result in shutter speeds that are too slow in dim light.
> 
> For most people, this Canon Auto ISO system is superior because it's 
> easier to use. For myself and the minority of you who learn Nikon's more 
> complex system, Nikon's system is superior for people and action photos 
> because the lowest desired shutter speed can be set to 1/125 (or 
> anything else), and the Nikons will then use higher Auto ISOs than Canon 
> to try to maintain 1/125 in lower light so people don't get smeared. 
> Canon's Auto ISO will be perfectly happy shooting indoors at 1/30 at 
> wider angles, and your non-flash people photos will be blurred.
> 
> Canon's "Highlight Tone Priority," a trick to prevent bright highlights 
> from blowing out to white, and Auto Lighting Optimizer, a trick to keep 
> shadows from getting too dark, really work¨.
> 
> The Auto Lighting Optimizer is always on by default, but you have to 
> activate the Highlight Tone Priority manually in C.Fn II 6 (MENU > click 
> left or right to the Wrench with three dots > Custom Functions > click 
> right to #6 > SET > Click down to ENABLE > SET).
> 
> Highlight Tone Priority never lets the ISO go below 200 or above 3,200. 
> If you have it ON, you'll see "D+" in the finder and on the LCD on 
> playback if you're looking at shooting data.
> 
> Tomas HVAC rašė:
>> kaip Tv, Av rėžimuose ant AUTO iso  uždėti viršutinę ribą?
>> tarkim aš pageidaučiau iki 800 maks. 
>> o kartais nors ir blicas + softboxas auto ISO susiskaičiuoja 1600...
>> žiauriai nervina
>> objektyvas 28-75 / f2,8 Tamrono taigi šviesus pakankamai.
> 
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