[Medium Cake]

記得呢度D大哥話出面晒數碼相係以300dpi為準, 計落條數:

A4 (8.5"x11") = 300x300x8.5x11 = 841萬像
A3 (17"x11") = 300x300x17x11 = 1683萬像

咁樣即係冇Canon 1DsM2都唔洗做A3相?

Nikon D2X 1240萬像就A4有餘, A3不足? 索性買800萬像機重實際?

我?favor 16"x20" 要等到有2880萬像機至得,即係要用番菲林?

還望指教.................

[Philippe]

咁你唔係一定要晒盡300dpi的.低啲解像度都可以出大相的.

[Bus Fans]

I' ve try (accidentally) made several print at a size of 12" x 18" from JPEG images of Nikon D2H with 4M pixels only! It is of course not as crisp as D2X but still not bad. On the other hand, it's image quality is much much better than a 8" x 12" print from SONY DSC F828 with 8M pixels that I've own previously.

[hk_tf]

Medium cake,

或者你可以 download 你 target o既機 o既 sample 相去沖/print出黎睇左先

唔知道你用film 有無沖/print 過 A3 相, 我相信 135 film 都不必滿足到你

Digital 機 你可以考慮砌相, 4 張 6/8M 砌埋應該夠用, 再唔夠可以用 9張試試

TF

[Medium Cake]

"咁你唔係一定要晒盡300dpi的.低啲解像度都可以出大相的"

--- 呢樣?係沖哂店話事唔到我搞....

"唔知道你用film 有無沖/print 過 A3 相, 我相信 135 film 都不必滿足到你"

--- 我當然135 film print 過 A3 相, 品質可以. 16"x20" 就係135 film?極限, 再大要用120 film.

"Digital 機 你可以考慮砌相"

--- 砌相唔係部部機得, 映人像要砌相就不切實際


所以我覺得一部DSLR+支好??lens 都起碼過萬, 但好多都係6-700萬像, 做A4都好勉強, 真係.........如果要做大相真係用film 機不可??????

[fongbiu]

print A0 都可以,不過會降做72 dpi, 當然快途尾唔會彩你,要係印海佈既地方
先得,而且 72 dpi 質數你接唔接受到先,好似3,4R咁近睇就一定唔得,
不過出得A0 起碼都講緊距離五六尺睇全相,應該睇唔到咩野缺陷,
有興趣可以找我幫忙,我有朋友出呢D海佈, about $ 3xx . 有需要咪試下羅.

[bkfchung]

其實你可以用 Photoshop 插值把像素加大，只要你原本的照片夠sharp，把照片改為300dpi，再放大像素(size)，基本上不大看得出來。

[kcfong]

dpi 同像素係唔同架
冇一定要1dpi=1pixel 架下化?

[WSLam]

Interpolate 咪得囉。
BillBoard Size 都得，可況16x20?小兒科啦
再唔係，用 QImage。攪掂!

[Medium Cake]

WSLam,

What is Interpolate? QImage?

[Philippe]

" "咁你唔係一定要晒盡300dpi的.低?解像度都可以出大相的"

--- 呢樣?係沖哂店話事唔到我搞...."

唔係好明你乜意思,唔通唔夠300 dpi就唔肯幫你晒大?我可以話俾你聽唔係囉.