Just exposed Delta 100 at 400 iso - Help

[Johnmcd]

Hi,

Still getting used to my M4 with vc meter. Made a beginners mistake today. Changed films without changing iso on the meter. So how should I best develop Delta 100 exposed at 400? The developers at hand are Ilfosol 3 and Rodinal.

Any advice gladly accepted

Thanks - John

[Fotohuis]

Rodinal development will cause in general 1/3F stop speed loss on most films, so not the best choice for a +2F stop push processing.

The best choice would be a speed enhancing type developer like Microphen, DD-X or an equivalent type.

Back to your developers: Ilfosol-3

+2F: time x 1,33 x 1,33

is a general rule to calculate approx. the new developing time. But maybe you can find in the Ilford data sheet a more precisely developing time for push processing.

Best regards,

Robert

[Fotohuis]

Just a few clicks:

http://www.ilfordphoto.com/Webfiles/...0204272065.pdf

http://www.ilfordphoto.com/Webfiles/201062894918374.pdf

Page 4: Microphen 10 minutes E.I. 400

If 100 DELTA Professional has been inadvertently exposed at settings below EI 50/18 or above EI
200/24, the following guide will ensure usable negatives are obtained. Obviously, the quality of negatives processed in this way will not be so high as conventionally processed ones.

Manual processing (min/20ºC/68ºF) –
accidental exposure only

Dilution Meter setting
EI 25/15 EI 400/27
and below and above
MICROPHEN stock – 10
PERCEPTOL stock 9 –

　

[fidget]

I have regularly exposed D100 at ISO200 and have had good results.
I went by guidelines in the "Massive Developer chart" here

Bookmark this site, it's a useful resource.
The above link (for example) shows D100 exposed at up to 800 using Xtol.
Good luck....

Dave

[Rob-F]

Microphen would be my first choice. I would also consider T-Max developer. DD-X would not be out of the question if the others are not available. I don't think Ilfosol is a good choice for this, and Rodinal is out.

[Johnmcd]

Thanks for all the replies. I'll swing by and pick up some Microphen first chance I get. Sorry if I'm appearing a little lazy (I do use the iphone app of the the massive developer chart), just looking for some experience based comments.

Cheers and thanks again - John

[Melancholy]

I did the same "mistake" some months ago, developed as iso 400 in Xtol 1:1 and got nice results from it, at least in my opinion.

[gns]

Just a thought...what would flashing the film do in this situation? Kind of a Post-flash instead of Pre-flash? Would that help bring up the shadows, or not?

Roger could probably weigh in on this with some good advice.

I'm not sure how you could do this with roll film, though. If you put the film through the camera again, the frames wouldn't register. Easy with sheet film.

Gary

[ChrisN]

John, if you can't find Microphen, I have a pack in the darkroom I'm not likely to need any time soon.

[Johnmcd]

Thanks for the offer Chris but I should be able to pick some up at Vanbar in Sydney next week. If not I know where to go

Cheers - John

Originally Posted by ChrisN

John, if you can't find Microphen, I have a pack in the darkroom I'm not likely to need any time soon.

[Johnmcd]

Thanks for the advice guys.

Delta 100 at 400 iso developed in Microphen 1:1 for 10 mins

[robert blu]

Same mistake here, I only increased the developing time of about 40% with a reasonable good result, more details here. In my case the photo were made in a soft light which helped not to have a too strong contrast due to longer developing time. I hope this helps,
robert

[Chris101]

Looks like it worked pretty well John!

[Johnmcd]

Originally Posted by Chris101

Looks like it worked pretty well John!

Sure did Chris. Bit more contrast perhaps but very fine grain. I must decide to accidentally do this again

John