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sent on February 07, 2014 (12:03) | This comment has been automatically translated (show/hide original)
could you explain what is the noise? I'm sorry but are inexperienced on the terms potresti spiegarmi cosa è il rumore? Scusa ma sono inesperto sui termini
sent on February 07, 2014 (14:23) | This comment has been automatically translated (show/hide original)
See the colored dots and non-visible especially in the darker areas? is a disorder called "noise" or "grain", caused by the light sensitivity of the sensor. This sensitivity is set via the digital in the ISO value, the value is higher, the sensor is sensitive, so it is most impressed by the light and shutter speed and aperture settings you can use more calm in spite of the lack of light (in fact, the ISO is raised when there is little light). The downside of it is that the shape of the noise in the image. It 's like that in the film instead of digital noise, there was grain (obviously preset from the film). In digital, at the time of development (what many call post-production) using decompleted programs like Lightroom, you can go to remove this trouble to make the picture more clear. Eye that if you overdo the colors blend in and be a mess.
I hope I was helpful bona Vedi quella puntinatura colorata e non, visibile sopratutto nelle aree più scure? è un disturbo chiamato "rumore" o "grana", causato dalla sensibilità alla luce del sensore. Questa sensibilità nel digitale viene impostato tramite il valore ISO, più il valore è alto, più il sensore è sensibile, per cui viene impresso maggiormente dalla luce e puoi usare impostazioni tempo e diaframma più tranquilli nonostante la poca luce (infatti il valore ISO viene alzato quando c'è poca luce). Il lato negativo della cosa è che si forma del disturbo nell'immagine. E' come nella pellicola che al posto di rumore digitale, c'era della grana (ovviamente preimpostata dalla pellicola). Nel digitale, al momento dello sviluppo (quella che molti chiamano post-produzione) utilizzando determinati programmi come Lightroom, puoi andare a rimuovere questo disturbo per rendere l'immagine più pulita. Occhio che se si esagera i colori si impastano e viene un macello.
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