development times (exposed 125 @ 400 ASA)

[janine_carol]

I'm a beginner photographer in need of a little help. I accidentally exposed a roll of Ilford 125 film at an ASA of 400. I usually develop for 6 minutes, any hints on how to change development time to make sure the exposure is correct? Thanks in advance...

Janie

[cesar_barreto]

Janine,

Exposure won't be correct no matter how you develop your film. The

best some pushing can do is raising the contrast from shadows,

probably very weak due to under-exposure, to medium and higher

values. As a beginner, you may not be quite sure about your metering

thecniques, so I'd suggest you a 50% increase on development time and

light a candle for some "superior help".

Don't be sad anyway, for these accidents sometimes bring real good

pictures.

Good luck!

 

<p>

 

Cesar B.

[nigel_smith2]

I would go for about 20% more.

[justin_mcmaster]

if you like you can clip a little bit off the start of the roll and

guess a time . all you will do though is increase the contrast. try

about five times longer than usual.

try rating 400 speed at 200 and process normal, 100 at 50 etc. most

b &w film appreciates over exposure a little.

just try all different ways to come up with somthing that noone else

know about.

[ron_gratz]

You might try processing in Acufine Developer. The exposure indices

are higher for that developer than for conventional developers.

 

<p>

 

I dont have a can available to give the exact values & times but they

should be on the can (available at most stores than sell

photochemicals).

[chris_topher__burton]

Too damn late to help the enquirer I know, but for those in a similiar

predicament I have successfully used another technique that offers

least possibility for error. In my case FP4 and Tri-X have been

processed with D76/ID11 as follows: Take the full strength solution

and dilute 1+4 at 20C. Agitate continuously for the first TWO minutes

and then leave untouched for five times the recommended development

time at full strength. This can be 45 minutes, or longer! It is

difficult to overdevelop because the undisturbed solution exhausts

quite quickly in the most exposed areas whilst continuing to function

in the underexposed parts. This technique does inevitably produce

some degree of tone compression, but nothing, in my experience, which

can't be effectively counteracted at the printing stage.