2009年9月5日 星期六

Paper Size 紙張大小 - International Standard 國際標準

我肯定不定我一個人記不牢A4紙到底有多大?
我還老是記不住相片4R的比例!




Photocopier Paper Size
Size Code Size (mm) Size (inch)
A4 210mm x 297mm 8-1/4" x 11-3/4"
A3 297mm x 420mm 11-3/4" x 16-1/2"
F4A 216mm x 343mm 8-1/2" x 13-1/2"
F4B 216mm x 330mm 8-1/2" x 13"
F4C 210mm x 330mm 8-1/4" x 13"
L/S 216mm x 279mm 8-1/2" x 11"
LGA 216mm x 356mm 8-1/2" x 14"
B4 257mm x 364mm 10-1/8" x 14-3/8"

The "A" Series is for General Printed Matter
Size Code Size (mm) Size Code Size (mm)
A0 841mm x 1,189mm A6 105mm x 148mm
A1 594mm x 841mm A7 74mm x 105mm
A2 420mm x 594mm A8 52mm x 74mm
A3 297mm x 420mm A9 37mm x 52mm
A4 210mm x 297mm A10 26mm x 37mm
A5 148mm x 210mm

The "B" Series is for Posters, Wall Charts
Size Code Size (mm) Size Code Size (mm)
B0 1,028mm x 1,456mm B5 182mm x 257mm
B1 728mm x 1,028mm B6 128mm x 182mm
B2 514mm x 728mm B7 91mm x 128mm
B3 364mm x 514mm B8 64mm x 91mm
B4 257mm x 364mm

The "C" Series is for Folders, Post Card, Envelopes
Size Code Size (mm) Size Code Size (mm)
C0 917mm x 1,297mm C5 62mm x 229mm
C1 648mm x 917mm C6 114mm x 162mm
C2 458mm x 648mm C7 81mm x 114mm
C3 324mm x 458mm C8 57mm x 81mm
C4 229mm x 324mm


資料來源/參考資料:
http://www.walkerpaper.com/paper_size.htm
http://en.wikipedia.org/wiki/Paper_size

2009年9月4日 星期五

相片尺寸的「R」制度


基本上,無論橫度定直度,長闊比例大概是3:2,這就是每張135菲的比例 (36mm x 24mm) (多謝讀者Vincent指正)。R前面的數字是較短一邊的尺寸(英吋做單位),所以4R就應該係4″ X 6″,5R就應該係 5″ X 6.6665″,但由於計起來長的一邊未必是整數,相紙製造商就round up/down尺寸,久而久之大家公認了這標準。

3R = 3.5″ X 5″
4R = 4″ X 6″
5R = 5″ X 7″
6R = 6″ X 8″
8R = 8 X 10″
16R = 16″ X 20″

其實2R和3R短的一邊分別係2.5″同3.5″,但為了方便只稱為2R和3R,而不是2.5R和3.5R。

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MEGAPIXELS AND MAXIMUM PRINT SIZE

# of Megapixels Maximum 3:2 Print Size
at 300 PPI:at 200 PPI:
25.8" x 3.8"8.7" x 5.8"
37.1" x 4.7"10.6" x 7.1"
48.2" x 5.4"12.2" x 8.2"
59.1" x 6.1"13.7" x 9.1"
610.0" x 6.7"15.0" x 10.0"
811.5" x 7.7"17.3" x 11.5"
1214.1" x 9.4"21.2" x 14.1"
1616.3" x 10.9"24.5" x 16.3"
2219.1" x 12.8"28.7" x 19.1"

===================================================

4R - 1600x1200 (2.0M)
A4 - 2274x1704 (4.0M)
A3 - 3072-2048 (6.3M)
A3+ - 3504x2336 (8.0M)

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設計4R相紙的的尺寸和分辨率

分辨率大於180dpi以上為佳


1X1.5 (1) 2.6*3.9 一寸2.5*3.5

1.5X2 (2) 3.8*5.1 大二寸3.5*5.0 小二3.5*4.5

5*3.55/3R)  12.70*8.89

6*46/4R)   15.24*10.16

7*57/5R)   17.78*12.70

8*68/6R)   20.32*15.24

10*810/8R)  25.40*20.32

10*12(12)     25.40*30.48

12*14(14寸)    30.48*35.56

12*16(16)    30.48*40.64

14*18(18)    35.56*45.72

16*20(20)    40.64*50.80

20*24(24)    50.80*60.96

24*30(30)    60.96*76.20

24*36(36)    60.96*91.44


1.身份証(22mm*32mm)

2.駕駛証(22mm*32mm)


3.黑白小一寸(22mm*32mm)

4.彩色小一寸(27mm*38mm)

5.彩色大一寸(40mm*55mm)

6.普通証件照(33mm*48mm)

=================================================================

1M = 1024*768

3M = 2240*1680

5M = 2688*2016

7M = 3136*2352

10M = 3648*2736



顯示解析度 http://zh.wikipedia.org/zh-tw/%E6%98%BE%E7%A4%BA%E5%88%86%E8%BE%A8%E7%8E%87

資料來源/參考資料:

http://blog.avantbiz.com/2006/09/05/photo-size-2r-3r-4r-5r/

http://www.cambridgeincolour.com/tutorials/digital-camera-pixel.htm