Why Ilford printing paper has not the 3/2 ratio in dimensions like of a 35mm film

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Don_ih

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...and, regardless of geography, we all refer to 35mm as 35mm. Not 1.3779527", so most of us should be able to visualize (visualise) how large 24mm and 35/36mm are.

Or 1 3/8" ... although it's not that, since it's half of 70mm (just a bit more than 1 3/8"). Edison wanted 1 3/8 but got 70mm split in half.
 

Sirius Glass

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Haha, the same would apply to 120 of course. 😄

No need. Hasselblad advertized for years that "Square is the perfect format." Being perfect means one does not have to say "I am sorry."
 

DREW WILEY

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That 1-3/8" thing drove me crazy. It might seem like just a tiny bit different than 35mm; but when you've got a line bore machine matched to actual 35mm European round hinge bases, substituting a 1-3/8" Forstner bit can cause many hours of extra installation tweaking in a large kitchen. If they griped due their own fault, I told them to buy a metric crowbar, a rubber mallet, and rubber nails.
 

Don_ih

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That 1-3/8" thing drove me crazy. It might seem like just a tiny bit different than 35mm; but when you've got a line bore machine matched to actual 35mm European round hinge bases, substituting a 1-3/8" Forstner bit can cause many hours of extra installation tweaking in a large kitchen. If they griped, I told them to buy a metric crowbar, a rubber mallet, and rubber nails.

You need to buy a 1 9/16 and spin it against a grind stone to cut it down. That's what we had to do about 25 years ago.
 

foc

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Changing from one system of measurement or currency to another can be fairly easy.

I often wonder why the USA can't get its' head around the metric system since their $ is based on it (100c = $1)

In National school I learned money maths in £ s d. That changed to metric (100p = IR£) in 1971. Then miles feet and inches changed to metre, cm, mm. And by 2005 all our road signs and speed limits were in kilometre and kph.

I know it's off topic but here is an example of £ s d maths.

pound shilling pence jpeg.jpg
 
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Sirius Glass

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Changing from one system of measurement or currency to another can be fairly easy.

I often wonder why the USA can't get its' head around the metric system since their $ is based on it (100c = $1)

In National school I learned money maths in £ s d. That changed to metric (100p = IR£) in 1971. Then miles feet and inches changed to metre, cm, mm. And by 2005 all our road signs and speed limits were in kilometre and kph.

I know it's off topic but here is an example of £ s d maths.

View attachment 332405

What about Farthings and Ha' Pennies?
 

Don_ih

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Imperial has one advantage over Metric. Fractional notation is faster and easier to work with than decimal. And everyone knows that fractional notation is completely rational.
 
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My public school and university time coincided with the time when much of the everyday metrification started really happening in Canada.
As a result, my ability to mentally see and estimate in either system is probably impaired :smile:.
I just wish that we would finish the job - stop advertising prices per pound and then having both on the shelf sign, but only the metric on the receipt.
We don't see miles per hour anymore on our road signs or speedometers - and we survived!
By the way, my then young nieces were confounded by clock faces when they visited our home - they were only comfortable telling the time using digital clocks.
And as for the answer to your question Alan, just tell your Tesla to get you there, and you can stop worrying about it 😇

You have bigger problems in Canada as all the signs and government papers are in two languages French and English. At least we both drive on the right side of the road instead of the wrong side like those Brits. :wink:

Speaking of road signs reminds me of the time my wife and I were driving in the thickest fog at night trying to find our way back to our cabin in New York's Catskill Mountains. After about ten minutes of driving what seemed like in circles, I realize that the Highway 35 sign I was following was actually the MPH speed limit sign.
 
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Not a reason. Not even a worthwhile excuse. Everywhere else people were able to make the change without a brouhaha. People in the US just need to get over themselves.

You may want to do some research about the metric system before posting about converting to a decimal clock. That has never been seriously considered.

I never said it was. Maybe you ought to read my posts first before criticizing what they didn't say.
 

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You have bigger problems in Canada as all the signs and government papers are in two languages French and English. At least we both drive on the right side of the road instead of the wrong side like those Brits. :wink:

Very few signs are in French at this end of the country. And as for driving on the right side, only since 1920 :smile:.
 

Sirius Glass

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You have bigger problems in Canada as all the signs and government papers are in two languages French and English.

I never found multiple languages on signs a problem. Especially when I am in a country were English is not the dominate language. One should be tolerant of others and their ways and they will be tolerant of us.
 

snusmumriken

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You may want to do some research about the metric system before posting about converting to a decimal clock. That has never been seriously considered.

I never said it was. Maybe you ought to read my posts first before criticizing what they didn't say.

But in fact it was actually implemented for 12 years in revolutionary France. To quote Wikipedia:

<<
Decimal time was introduced in the decree of 5 October 1793 under which the day was divided into 10 "decimal hours", the "hour" into 100 " decimal minutes" and the "decimal minute" into 100 "decimal seconds". The "decimal hour" corresponded to 2 hr 24 min, the "decimal minute" to 1.44 min and the "decimal second" to 0.864 s.

The implementation of decimal time proved an immense task and under the article 22 of the law of 18 Germinal, Year III (7 April 1795), the use of decimal time was no longer mandatory. On 1 January 1806, France reverted to the traditional timekeeping.
>>
 

Sirius Glass

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But in fact it was actually implemented for 12 years in revolutionary France. To quote Wikipedia:

<<
Decimal time was introduced in the decree of 5 October 1793 under which the day was divided into 10 "decimal hours", the "hour" into 100 " decimal minutes" and the "decimal minute" into 100 "decimal seconds". The "decimal hour" corresponded to 2 hr 24 min, the "decimal minute" to 1.44 min and the "decimal second" to 0.864 s.

The implementation of decimal time proved an immense task and under the article 22 of the law of 18 Germinal, Year III (7 April 1795), the use of decimal time was no longer mandatory. On 1 January 1806, France reverted to the traditional timekeeping.
>>

And it died. Never to be resurrected again.
 

DREW WILEY

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One reason decimel time failed is that there would have been a revolution against the Revolution if the work week were extended to ten day instead of seven, along with all the religious holidays, with those times off, being cancelled.

In my picture framing area, I keep a simple inch-fractional to metric length calculator, since my high-quality rulers and straightedges are of both styles. My tape rules are metric/English, and my Mitutoyo electronic caliper shows either at the push of a button. Even my high-end Starrett combination squares in my woodworking shop have interchangeable metric and English blades. Sometimes thinking in English units is easier, sometimes metric instead. Even most plywood these days is actually mfg metric in thicknesses. The bulk of serious woodworking machinery is calibrated metric too, even saw blade diameters. The whole Euro method is more intuitive in general.

But one still has to think in English units too because it's the common denominator of ordinary construction in this country, and even entrenched into land use, surveying, and legal boundaries. And it's darn annoying if you're going from Point A to B in the wilderness, starting out with a USGS map with elevations in feet, spliced to another map showing meters instead. My little GPS watch has a built in altimeter which allows either, with the push of a button; but I rarely use it because it has so damn many features that it's confusing to remember all of the commands. It was given to me as a retirement present.
 
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Vaughn

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You have bigger problems in Canada as all the signs and government papers are in two languages French and English. At least we both drive on the right side of the road instead of the wrong side like those Brits. ...
I understand that Japan is considering going to right-side driving. During the pilot program all cars will start driving on the right in 2024. If it works out smoothly, trucks will be added to the program later in the year.
 

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Sirius Glass

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I never found multiple languages on signs a problem. Especially when I am in a country were English is not the dominate language. One should be tolerant of others and their ways and they will be tolerant of us.

In case you're not aware, it's not road signs that are the real issue. It;s that every Federal government document is printed bilingually in English and French.
 
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But in fact it was actually implemented for 12 years in revolutionary France. To quote Wikipedia:

<<
Decimal time was introduced in the decree of 5 October 1793 under which the day was divided into 10 "decimal hours", the "hour" into 100 " decimal minutes" and the "decimal minute" into 100 "decimal seconds". The "decimal hour" corresponded to 2 hr 24 min, the "decimal minute" to 1.44 min and the "decimal second" to 0.864 s.

The implementation of decimal time proved an immense task and under the article 22 of the law of 18 Germinal, Year III (7 April 1795), the use of decimal time was no longer mandatory. On 1 January 1806, France reverted to the traditional timekeeping.
>>

I suppose their cameras operated in decimal too. No more 1/4, 1/125, etc.
 
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I understand that Japan is considering going to right-side driving. During the pilot program all cars will start driving on the right in 2024. If it works out smoothly, trucks will be added to the program later in the year.

But all the steering wheel are on the right so they can drive on the left. When I was stationed in Japan in the mid 1960's I owned an American 1948 Buick for driving on the right brought over from the USA. Its hard driving on the left side of the road as I had to do in Japan at the time. I would ask my Jaoanese frioend who was sitting in the passenger seat on the right to check for oncoming traffic before I could pull out. So if they change in 2024, the drivers will all have the same problem I had only in reverse.
 

MattKing

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In case you're not aware, it's not road signs that are the real issue. It;s that every Federal government document is printed bilingually in English and French.

You might be amazed at how infrequently we encounter this in everyday life :smile:
The requirement for bilingual information on packaging is much more of an everyday thing - but it really is something you only notice when you need to turn the container to read the directions - about 50% of the time.
It can be a challenge for people who sell small packages - e.g. it was tough to fit everything in on a box of film.
There are, of course, large parts of the country where a lot more French is commonly used. Including one province (Quebec) where in many/most areas it is the primary language.
 
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You might be amazed at how infrequently we encounter this in everyday life :smile:
The requirement for bilingual information on packaging is much more of an everyday thing - but it really is something you only notice when you need to turn the container to read the directions - about 50% of the time.
It can be a challenge for people who sell small packages - e.g. it was tough to fit everything in on a box of film.
There are, of course, large parts of the country where a lot more French is commonly used. Including one province (Quebec) where in many/most areas it is the primary language.

Most instructions for things today are in multi languages because of international trade including Kodak film which I believe some of which is made in Mexico, or maybe packaged there.
 
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