Thin Negatives with Fomapan 200 in HC-100

[zachsilvey]

I developed some Fomapan 200 in HC-110 dilution B today. I know that this isn't recommended because of the short development time of 3.5 min.

My question is would I get better results if I double the dilution and development time?

 

[sublimeone101]

I don't know about doubling the developing time but diluting it to force a longer dev time is a good idea.

 

[brucemuir]

What ISO/ASA did you rate the film for.
I find I can squeeze out 125 okay but 160-200 is pushing things a bit if you like meat in your shadows.

 

[zachsilvey]

Doesn't HC-110 have a linear development curve?

I rated it at box speed so, 200.

 

[brucemuir]

Longer development won't get good shadow detail, it will just increase the contrast that was exposed to begin with so I'd recommend trying 100-125 and see if you like it better.

 

[DLM]

At the photo lab at my school, we use HC-110, and one of the instructors recommends the Arista .EDU film to the class. He had a sheet up on the door with development times since they are a bit harder to find compared to the other larger film companies. I've used the Arista .edu/Fomapan 100 quite a bit, and the development time for it was 6 minutes. Is it possible that the 3.5 minute time just isn't correct?

 

[Ian Grant]

Fomapan 200 needs some care & testing as it behaves badly at box speed and my experiences with HC-110 is that too tends to drop effective film speed slightly.

You need to do your own test but a starting point is bracket fro 50EI to 200 EI, many of us use this film at 100EI but there are som that drop the speed even lower. Fomapan 100 & 200 need slightly shorter development times than most others or the contrast goes through the roof but I'd think 3.5 mins at Dil B 20C is a little short, I'd go for about 5 mins initially @100 EI + bracketing.

Once you get your own effective EI & development time nailed down it's an excellent film.

Ian

 

[zachsilvey]

Maybe I'll just stick to TMAX then.

 

[mikebarger]

good plan.

Mike