-
Welcome to the new forums! Please read this first. For known issues we are working to resolve, click here.
A4?
- Thread starter Andres
- Start date
J
JP Scherrer
Guest
A4 is 21 x 29.7 centimeters ! ...wich is the usual letter format in Europe.
Cheers,
Jean-Pierre
Geneva, Switzerland
http://www.pbase.com/scherrer/geneva
Cheers,
Jean-Pierre
Geneva, Switzerland
http://www.pbase.com/scherrer/geneva
J
JP Scherrer
Guest
on that : this format is a bit strange, but once you get use to it, the different europeans formats are simples :
A4 beiing 21 x 29.7 cm., you have A3 wich is the double = 42 x 29.7 cm., then A2 is again the double, and so on...
you also have A5 wich is half A4, so 21 x 14.85 cm.
Cheers,
Jean-Pierre
Geneva, Switzerland
http://www.pbase.com/scherrer/geneva
A4 beiing 21 x 29.7 cm., you have A3 wich is the double = 42 x 29.7 cm., then A2 is again the double, and so on...
you also have A5 wich is half A4, so 21 x 14.85 cm.
Cheers,
Jean-Pierre
Geneva, Switzerland
http://www.pbase.com/scherrer/geneva
Hansplast26
Senior Member
Right, excellent;-)
the official name is DIN-A4, where DIN stands for "Deutsche Industrie Norm". It means that its an official german industry standard.
Regards,
Hans
http://www.pbase.com/hansaplast26
the official name is DIN-A4, where DIN stands for "Deutsche Industrie Norm". It means that its an official german industry standard.
--
Regards,
Hans
http://www.pbase.com/hansaplast26
Bob Hoch
Active member
J
JP Scherrer
Guest
Do you know WHY "they" have chosen this strange format ? 29.7 cm. x 21 cm. doesn't have any logical sense to me...
Haaaaa ! just thought of one possibility : the proportion of A4 paper is 1.414:1, wich is the proportion of the transversal axis of a square versus the side of this square... could it be that ?
Cheers,
Jean-Pierre
Geneva, Switzerland
http://www.pbase.com/scherrer
MarcV
Senior Member
J
JP Scherrer
Guest
...I thought that it was also the square root of 2, but it isn't quite that... On my calculator, when I ask the square root of 2 I get :
1.414213562373095048801688724209
but when I divide 29.7 by 21 I get :
1.4142857142857142857142857142857
How come ???
Cheers,
Jean-Pierre
Geneva, Switzerland
http://www.pbase.com/scherrer
1.414213562373095048801688724209
but when I divide 29.7 by 21 I get :
1.4142857142857142857142857142857
How come ???
Cheers,
Jean-Pierre
Geneva, Switzerland
http://www.pbase.com/scherrer
I don´t know about the history of the "A" formats, all I can say is that it is THE standard here (The Netherlands). Everything is printed on A4, magazines are in A4, newspapers in A2, etc. etc.
Funny... I work for a US-company, here some people print in "your" letter-format and the printers here don´t understand it ;-)
Greetings from (at the moment) sunny Netherlands.
Funny... I work for a US-company, here some people print in "your" letter-format and the printers here don´t understand it ;-)
Greetings from (at the moment) sunny Netherlands.
E
Ed Nazarko
Guest
J-P, you frighten me...
Ed
Make pictures, don't take them - it leaves more for others.
--
Ed
Make pictures, don't take them - it leaves more for others.
E
Ed Nazarko
Guest
As someone who travels through and has lived in both A-sized and "other" sized paper areas, and has notebooks and files in both formats, it makes for an awful mess in files, and I'm forever the guy causing the printer to pause because I've asked it to print in a format that it KNOWS it doesn't have paper for.
On topic for this site, though - I loved A4 paper for printing scans of 35mm slides, but it's an unnatural crop from the 5700, and from other prosumer cameras I've owned. Now that I'm in the US, with "letter size" paper (does anyone write letters anymore?) I curse the paper sizes when I have to print my carefully composed scans of 35mm images, but find that my 995 and 5700 images all fit quite nicely.
As I mentioned elsewhere, I have marked paper-size crop marks on the LCD screens (actually on the plastic surrounding the screens) to help me in composing images. Too many times I've found that I composed full frame, and then have to either print with weird borders, or crop out things I carefully placed in the image.
Ed
Make pictures, don't take them - it leaves more for others.
On topic for this site, though - I loved A4 paper for printing scans of 35mm slides, but it's an unnatural crop from the 5700, and from other prosumer cameras I've owned. Now that I'm in the US, with "letter size" paper (does anyone write letters anymore?) I curse the paper sizes when I have to print my carefully composed scans of 35mm images, but find that my 995 and 5700 images all fit quite nicely.
As I mentioned elsewhere, I have marked paper-size crop marks on the LCD screens (actually on the plastic surrounding the screens) to help me in composing images. Too many times I've found that I composed full frame, and then have to either print with weird borders, or crop out things I carefully placed in the image.
--
Ed
Make pictures, don't take them - it leaves more for others.
S
Steve Dean
Guest
J-P,
I believe the limited number of places shown on your calculator may be fooling you into thinking the error is less than it truely is. The difference might be staggering if you could carry it out to perhaps 50 or 60 decimal places. LOL
Steve
I believe the limited number of places shown on your calculator may be fooling you into thinking the error is less than it truely is. The difference might be staggering if you could carry it out to perhaps 50 or 60 decimal places. LOL
Steve
MarcV
Senior Member
Would it really matter if you had a sheet of 21x29,7mm or a sheet of 21x29,698484809834996024835463208404mm?
Marc Vandenhende
CP995, CP4500
http://web.wanadoo.be/marc-v
ICQ#100237811
--
Marc Vandenhende
CP995, CP4500
http://web.wanadoo.be/marc-v
ICQ#100237811
S
Steve Dean
Guest
Ed,
I appreciate the tip on marking the LCD panel. I think I'll place some tape along the edges, and put the marks on the tape.
Steve
I appreciate the tip on marking the LCD panel. I think I'll place some tape along the edges, and put the marks on the tape.
Steve
S
Steve Dean
Guest
MarcV
Senior Member
J
JP Scherrer
Guest
As you can see, my calculator gives me up to 30 numbers AFTER the decimal, and the actual result changes totally after ONLY 4 numbers after the decimal ! See :
1.414213562373095048801688724209 and
1.4142857142857142857142857142857
...I guess it's not as important as all that, but it's just for the sake of being precise... after all, I'm Swiss ; ) ...so we're known for precision !?!
Cheers,
Jean-Pierre
Geneva, Switzerland
http://www.pbase.com/scherrer
J
JP Scherrer
Guest
...than this !!!
Just think of the tons of sheets of A4 paper used in the world, and the economy it could be if one could save a 0,00000000001 milimeter of paper on each sheet !!!
All the trees in the world would certainly be thankful !
Cheers,
Jean-Pierre
Geneva, Switzerland
http://www.pbase.com/scherrer
Just think of the tons of sheets of A4 paper used in the world, and the economy it could be if one could save a 0,00000000001 milimeter of paper on each sheet !!!
All the trees in the world would certainly be thankful !
Cheers,
Jean-Pierre
Geneva, Switzerland
http://www.pbase.com/scherrer
J
JP Scherrer
Guest
...and if it's not so serious, at least it made me have a few funny moments..
I think ANY EXCUSE for a good laugh is valid these days...
Cheers,
Jean-Pierre
Geneva, Switzerland
http://www.pbase.com/scherrer
I think ANY EXCUSE for a good laugh is valid these days...
Cheers,
Jean-Pierre
Geneva, Switzerland
http://www.pbase.com/scherrer
Keyboard shortcuts
- f
- Forum