Interpolazione e dimensioni per la stampa

[freccia_1982]

Una curiosità volevo sapere se con la F700 che ha 3mpx effettivi e 6interpolati posso stampare, come se fosse una 6mpx o devo restare nei limiti dei 3mpx (lasciando i dpi a 200).
la stampa sarebbe circa un 30 x 40.
Grazie.

[ciop71]

Dipende da che dimensioni ha la foto, moltiplichi base x altezza e sai da quanti pixel è composta.
Poi guardi qui http://www.hwupgrade.it/forum/showthread.php?t=547251 e puoi far chiudere la discussione.

[freccia_1982]

La domanda era un altra...
Per la stampa mi devo rifare ai mpx effettivi o a quelli interpolati???
Grazie.

[FreeMan]

In realtà la qustione è + complessa dato che usa 2 sensori

http://www.imaging-resource.com/PRODS/F700/F7A.HTM

Universally known for great color and performance, Fuji has also made a name for itself in the digicam arena as a technical innovator. Several years ago, they introduced their "SuperCCD" technology, which increases visually apparent resolution in digital images, relative to those captured with conventional CCDs. This year (2003), they've developed the new "SR" SuperCCD technology, which cleverly combines low- and high-sensitivity photo elements to produce an extended tonal range more akin to that of film. The FinePix F700 is the first camera to utilize the Super CCD SR technology, and my experience with it seems to validate Fuji's claims of superior tonal response. Occupying the upper midrange of Fuji's line of cameras, the F700 uses 6.2 megapixel sensors (3.1 million high-sensitivity and 3.1 million low-sensitivity) to produce files with resolution that lies somewhere between that of conventional 3- and 6-megapixel cameras. With a sharp 3x zoom lens, compact size, and straightforward user interface, the F700 is a high-end point & shoot design that should appeal to novice users and more experienced shooters alike. Read on for all the details.


Resolution/Sharpness: Resolution is the area in which we see the tradeoff that was made to achieve the exceptional dynamic range of the F700. While is sensor has 6.2 million active sensors in it, they're combined in pairs to produce the final image, so the effective resolution could be expected to look more like that of a 3.1 megapixel camera. In practice though, there's at least a little benefit gained here from Fuji's SuperCCD technology, so the net result is that the apparent resolution of the F700 lies somewhere between that of 3.1 and 6.2 megapixel cameras. Overall, the F700 performed well on the "laboratory" resolution test chart. It started showing artifacts in the test patterns at resolutions as low as 800 lines per picture height, in both horizontal and vertical directions. I found "strong detail" out to at least 1,400 lines horizontally, and perhaps 1,300 lines vertically, although you could perhaps argue for as much as another 50-100 lines higher in each direction. "Extinction" of the target patterns didn't occur until about 1,600-1,650 lines.

quindi alla fine dei conti è una via di mezzo.. la cosa migliore è provare a fare 2 stampe usando lo stesso soggetto ma fotografato una volta a 3mp e l'altra a 6mp..

cmq, per stampe "piccole" (i 30x40 da te citati) imho non c'è diff..

>bYeZ<