EXPOSURE SPEED FOR BROMIDE PAPER??

tonyowen34 · May 12, 2017

I've a pack of Kodak Bromide single weight paper (code WSG .2S)
Does anyone know (or can give best guesstimate of ) the ISO speed of this paper if used as a paper negative?

Alternatively would it be faster or slower than an assumed ISO rating of multigrade paper when used for making paper negatives?

I know I can use it on a guess and by-golly basis but if there is any reasonable data out there I'd be grateful for the information.

regards
Tony

pdeeh · May 12, 2017

Slooooow

ced · May 12, 2017

Try ISO 3 for starters and that will give you an idea after the first test print.

removed account4 · May 12, 2017

hey tony

what conditions will you be shooting ?
outdoors? indoors/ambient light/flash/hot light?
different situations have a different amount of blue light.
you might consider loading a film holder ( or even a 35mm camera ) with a rectangle of
your paper and make a "test strip"

pdeeh said:
Slooooow

yes !

tonyowen34 · May 13, 2017

Thank you all.
I use multigrade at ISO 6, which with Ilford's PQ Universal developer works okay. So the suggestion of ISO 3 (or less) makes sense - especially considering the [unknown, but possibly ancient] age of the material.
I'll use ISO 6 as a datum and immediately expose subsequent sheets at 2x, 4x & 8x exposure which should cover ISO 6, 3, 1.5 and 0.75 - for the same subject and the same conditions.
regards
Tony

removed account4 · May 13, 2017

tony

sometimes graded paper is extremely slow. i was using some old agfa graded paper,
and instead of 4 second exposures it was with ilford vc,
they were 45 second exposures ( same light, same conditions, same image )
vc paper is "speedy" by comparison ..

some here expose ilford rc mg@ iso 25

(there was a url link here which no longer exists)

tonyowen34 · May 13, 2017

[QUOTE="jnanian,some here expose ilford rc mg@ iso 25 [/QUOTE]
Thanks for update
regards
Tony

pdeeh · May 13, 2017

jnanian said:
some here expose ilford rc mg@ iso 25

I think they must live in sunnier climes than me coz I have to rate mine at 3 or less!

tonyowen34 · May 13, 2017

QUOTE="jnanian,some here expose ilford rc mg@ iso 25 [/QUOTE]

pdeeh said:
I think they must live in sunnier climes than me coz I have to rate mine at 3 or less!

I'm using MKIV rc de luxe that works at ISO6 (with yellow filter, no pre- or post- flashing) and using Ilford PQ Universal developer in jobo tank for 1 minute
Perhaps jnanian can explain further? Also for info only where is 'here'?

regards

Tony

NedL · May 13, 2017

I think that might have been PE, but of course it depends greatly on metering and lighting. I use ~12 when the paper is pre-flashed and no filter. ( And ~3, pre-flashed w/ a yellow filter outdoors ). We're all in the same "ballpark".

I sort of like "by guess and by golly" too, but that's just me!

tonyowen34 · May 13, 2017

[QUOTE might have been PE, rt of like "by guess and by golly" too, but that's just me! [/QUOTE]
Ned what is PE?????
Glad you like to "guess and by golly" expression
regards
Tony

removed account4 · May 13, 2017

hi tony

PE is ron mowrey, retired KODAK emulsion scientist
the thread is in the link that i posted, its an interesting read ...

the "here" i referred to was " here on apug "
i'm no were in particular, but i'm local..

pdeeh · May 13, 2017

tonyowen34 said:
Also for info only where is 'here'?

There's a clue right next to every post I make

tonyowen34 · May 14, 2017

pdeeh said:
There's a clue right next to every post I make

Yes I know you're in the UK.
However, we've a set of crossed messages - the FIO where is 'here' was in response to message #6
regards
Tony

removed account4 · May 14, 2017

tonyowen34 said:
... the FIO where is 'here' was in response to message #6

the "here" i referred to was " here on apug "

and you can follow this link for more information: (there was a url link here which no longer exists)

lsk · Jul 10, 2017

tonyowen34 said:
I've a pack of Kodak Bromide single weight paper (code WSG .2S)
Does anyone know (or can give best guesstimate of ) the ISO speed of this paper if used as a paper negative?

Alternatively would it be faster or slower than an assumed ISO rating of multigrade paper when used for making paper negatives?

I know I can use it on a guess and by-golly basis but if there is any reasonable data out there I'd be grateful for the information.

regards
Tony

I used to play with Ilford no 2 paper in the 60's and I remember I set my exposure meter to ASA 3. This worked very well in my old folding camera.

EXPOSURE SPEED FOR BROMIDE PAPER??

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