Bill... I think both terms have been used, for many many years. In Canada,
western Canada at least, "hypo" is the more common one, but both are used. I
suspect the older one is, the more likely "hypo" would be used. But I'm not
sure of that.
David.
It may have been a local language quirk, but we used to call hypo "fixer".
Bill in Denver
On Thu, Nov 3, 2016 at 10:00 AM, David Young <dsy@xxxxxxxxxxxxxxx> wrote:
Hi Bill!
Thanks, I never knew that.
It's amazing what you learn when you do research for an e-book on the history
of photography.
And my youngest son did Cibachrome and C-41 when he was in high school, in a
carefully blacked out bathroom.
I home processed both colour neg films and Ektachrome slides (then the C-22 &
E4 processes) back in the late 1960's --- but Cibachrome! Now, I am
impressed! That's a tricky one!
I have a number of lovely Cibachrome prints on my walls, but all done by
pro-labs. Sadly, the last run of Ilfochrome (previously called Cibachrome)
papers was made in 2012.It is no longer available, anywhere. Like many
things, killed off by the rise of digital.
So we are, or were, a "wet chemistry" family.
I think the record for "wet development" belongs to a friend of mine in
Vancouver, BC. He has a freezer stockpiled with something like 12,000 feet of
35mm Double-X Kodak B&W movie stock (5222 - ISO:200), and enough dry
chemicals to make developer for it all. Enough to last him a lifetime!
David.
On Nov 2, 2016, at 11:49, David Young <dsy@xxxxxxxxxxxxxxx> wrote:
Bill, Rich.
As a young lad, getting into photography, I always wondered why fixer
(Sodium Thiosulphate) was called "hypo".
Only later did I find out that, back in the day, Sodium Thiosulphate was
called "hyposulphite of soda", or simply "hypo", for short.
In fact, Sir John Herschel discovered that this "hyposulphite of soda"
would dissolve previously insoluble silver salts (thus, making it an ideal
photographic fixer) as far back as 1819.
But it was not used for photography until Fox Talbot's Talbotypes (the
first process to "develop" a latent image) in 1841, as earlier processes
yielded too weak an image to use with "hypo", as the hypo also dissolves a
wee bit of the image.
Just so's ya know...
Glad you enjoyed the link.
David.
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