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Search: Posts Made By: Lostlabours
Forum: Chemical formulae 18th January 2022, 06:54 PM
Replies: 3
Views: 140
Posted By Lostlabours
Yes, ideally you need a 2% solution, so 20gms per...

Yes, ideally you need a 2% solution, so 20gms per litre.

Ian
Forum: Auctions of Interest 12th January 2022, 08:20 PM
Replies: 6
Views: 146
Posted By Lostlabours
These were Large Format enlargers, all formats up...

These were Large Format enlargers, all formats up to 5"x4". In the late 1970s I employed a consultant who had worked with Blunfield in Birmingham, also Alpa cameras and Elinchom in Switzerland -...
Forum: Darkroom 8th January 2022, 09:06 PM
Replies: 18
Views: 484
Posted By Lostlabours
Smaller doesn't mean you can't make large prints....

Smaller doesn't mean you can't make large prints. I used to do 20x16" prints with my tiny Gnome Universum 35mm enlarger, it could also be used as a projector.

Unless you want to pay a lot for an...
Forum: Monochrome Film 4th January 2022, 05:16 PM
Replies: 10
Views: 282
Posted By Lostlabours
BCG Film & Photography are a Dutch photographic...

BCG Film & Photography are a Dutch photographic supplier, they sell two B&W films branded as BCG but I've no idea who makes it.

Ian
Forum: Chemical formulae 22nd December 2021, 03:49 PM
Replies: 19
Views: 843
Posted By Lostlabours
Keith, I can't find a reference anywhere for...

Keith, I can't find a reference anywhere for Sodium Sulphate being used as a developer adjunct and aside from helping reduce emulsion swelling it will no effect on development.

Sodium Sulphite...
Forum: Chemical formulae 22nd December 2021, 12:49 PM
Replies: 19
Views: 843
Posted By Lostlabours
Keith, the Sodium tripolyphosphate is in an...

Keith, the Sodium tripolyphosphate is in an Ilford patent at 3.5g/litre in an example developer (ID-11), it's a chelating agent, like Sodium Sulphate it's used in the food industry and both have very...
Forum: Chemical formulae 22nd December 2021, 09:08 AM
Replies: 19
Views: 843
Posted By Lostlabours
Keith, Metol is the only Sulphate in ID-11 they...

Keith, Metol is the only Sulphate in ID-11 they list it as bis(4-HYDROXY-N-METHYLANILINIUM) SULPHATE

This is one of the alternative ways of naming the chemical structure. Synonyms: Metol ,...
Forum: Manufactured brews 21st December 2021, 02:50 PM
Replies: 32
Views: 1,833
Posted By Lostlabours
The Bellini Borax isn't marked as Pho Grade on...

The Bellini Borax isn't marked as Pho Grade on it's packaging, that bit maybe N & T differentiating it from the Borax Substitute - Sodium Sequicarbonate.

A quick check and I can get 1kg Borax for...
Forum: Chemical formulae 21st December 2021, 11:20 AM
Replies: 19
Views: 843
Posted By Lostlabours
The commercial versions of D76 and ID-11 are no...

The commercial versions of D76 and ID-11 are no longer exactly the same as the published formulae. Over the years the buffering has changed part of the reason for this is that far more people now...
Forum: Photography in general 20th December 2021, 08:29 PM
Replies: 21
Views: 794
Posted By Lostlabours
My late wife was under the Heart Failure nurses...

My late wife was under the Heart Failure nurses for seven years, well one in particular, so the collection at the funeral went to them and I added quite a bit more.

It's a hard balance who should...
Forum: Manufactured brews 20th December 2021, 04:47 PM
Replies: 32
Views: 1,833
Posted By Lostlabours
Well that Nick & Trick price is close to 10x what...

Well that Nick & Trick price is close to 10x what i pay for 1 kg, the laboratory grade Borax I buy is the same as or better than Photographic grade. I have the specifications for nearly all Photo...
Forum: Colour film 20th December 2021, 10:45 AM
Replies: 6
Views: 463
Posted By Lostlabours
I used to push process regularly, usually Fuji...

I used to push process regularly, usually Fuji 400 to 1600 it wasn't ideal but at the time there was no other choice when I was shooting Rock concerts. Later Kodak and Fuji released faster slide...
Forum: Chemical formulae 19th December 2021, 04:04 PM
Replies: 7
Views: 253
Posted By Lostlabours
That would be 20 years :D ID-78 is very...

That would be 20 years :D

ID-78 is very similar to Harman Warmtone and Agfa Neutol WA. it was originally sold as an Ilford powdered developer.

Ian
Forum: Chemical formulae 19th December 2021, 03:21 PM
Replies: 7
Views: 253
Posted By Lostlabours
Look at it another way Terry. If you mix the...

Look at it another way Terry.

If you mix the published formula then take 250ml and mix at 1+3 to give 1 litre of working developer that contains 3g of Hydroqinone.

A litre of the stock...
Forum: Chemical formulae 19th December 2021, 02:05 PM
Replies: 7
Views: 253
Posted By Lostlabours
Logic, the published formula is used 1+3 (total...

Logic, the published formula is used 1+3 (total 4) the concentrate 1+9 (total 10) 10 divided by 4 is 2.5. So the concentrate has to be 2.5x stronger/more concentrated. However Sodium Carbonate...
Forum: Chemical formulae 19th December 2021, 09:45 AM
Replies: 7
Views: 253
Posted By Lostlabours
I use ID-78 which is essentially just a slight...

I use ID-78 which is essentially just a slight variation of ID-62 and it lasts well over a year. ID-78 is the warm tone developer essentially it has no Benzotriazole and increased Potassium Bromide....
Forum: Sale or Wanted 14th December 2021, 04:52 PM
Replies: 15
Views: 333
Posted By Lostlabours
There was a 300mm f5.6 Scneider Xenar, they were...

There was a 300mm f5.6 Scneider Xenar, they were once being sold off new quite cheaply by Robert White here in the UK and Badger Graphics in the US. However the SH prices are much higher now than...
Forum: Manufactured brews 14th December 2021, 03:16 PM
Replies: 32
Views: 1,833
Posted By Lostlabours
An Update

From the 15th Edition of the Wellington Photographic Handbook as posted earlier:

Wellington Box M-Q Fine Grain Developer

Metol 2g
Sodium Sulphite (anhyd) 10g
Hydroquinone 2g
Borax 20g
Water...
Forum: Sale or Wanted 14th December 2021, 01:42 PM
Replies: 15
Views: 333
Posted By Lostlabours
When I bought my 300mm f9 Nikkor M new from...

When I bought my 300mm f9 Nikkor M new from Robert White around 30 years ago he had to ordered it from Japan. They are quite rare here in the UK.

Don't forget the Import Duty and then VAT assume...
Forum: Sale or Wanted 14th December 2021, 12:58 PM
Replies: 15
Views: 333
Posted By Lostlabours
They do, that's what they are designed for. ...

They do, that's what they are designed for.

Ian
Forum: Darkroom 13th December 2021, 04:37 PM
Replies: 2
Views: 188
Posted By Lostlabours
It unscrews anti-clockwise. Ian

It unscrews anti-clockwise.

Ian
Forum: Photography in general 12th December 2021, 10:00 PM
Replies: 3
Views: 219
Posted By Lostlabours
Some years ago I went on a course to learn...

Some years ago I went on a course to learn Albumen printing at Dimbola House. Steve Smith of this Forum and APUF/Photrio had mentioned it and was also there.it was a free 2 day course on the Isle of...
Forum: Photography in general 12th December 2021, 07:21 PM
Replies: 3
Views: 219
Posted By Lostlabours
Multigrade 3rd generation

Just acquired some Multigrade postcard sized and Half plate, MG 1K & 26K,luckily also a set of the 3 filters Hard, Medium, Soft.

There's also some Ilford Contact paper, and Kodak Bromide and...
Forum: Manufactured brews 8th December 2021, 08:55 AM
Replies: 32
Views: 1,833
Posted By Lostlabours
Well with a tenth of the Sodium Sulphite of D32...

Well with a tenth of the Sodium Sulphite of D32 or D76 there's not the solvency effects so expect sharper grain. The BJP Almanacs used to include it occasionally for historic reasons,

If you...
Forum: Manufactured brews 8th December 2021, 08:40 AM
Replies: 32
Views: 1,833
Posted By Lostlabours
Mike and Terry are both right, Borax is not...

Mike and Terry are both right, Borax is not supposed to be sold to consumers as as an aid alonside soaps for washing clothes etc. It was also used in bath salts.

What you see on the shelves in...
Showing results 1 to 25 of 500

 
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