Film Reticulation

Film Photography & Darkroom discussion

Moderator: Keith Tapscott.

Terry
Posts: 3
Joined: Mon Nov 07, 2005 5:08 pm
Location: Seattle, WA

Film Reticulation

Postby Terry » Mon Nov 07, 2005 5:15 pm

Many years ago I was able to easily reticulate Tri-X 35mm with alternating hot/cold water baths after the stop bath. This no longer seems possible.

Does anyone out there know of a film - development combination that will reticulate? For certain images, the effect is wonderful.

Thanks!


Digitaltruth
Site Admin
Posts: 264
Joined: Mon Aug 16, 2004 8:24 pm
Contact:

Postby Digitaltruth » Mon Nov 07, 2005 6:57 pm

Modern emulsions are very hard to affect with differential temperature baths. Although there may be evidence of increased grain, it is minor compared to the full reticulation that you could formerly achieve with a film such as Tri-X.

You could try increasing the differential temperature, but even with boiling and freezing water, you may not achieve reticulation before damaging the emulsion.

Hopefully someone will have experience of reticulating a modern emulsion and can add to these comments, but my best suggestion would be to experiment with old-fashioned films such as those made by Efke, Foma, Forte etc... as these may be less resistant to temperature change. You can buy these films from JandC Photo whose link is on the home page at http://www.digitaltruth.com
--Jon Mided

Digitaltruth Photo
http://www.digitaltruth.com

tornredcarpet
Posts: 21
Joined: Thu Sep 15, 2005 1:46 pm

Postby tornredcarpet » Mon Nov 07, 2005 7:53 pm

what's the temperature difference? you could try a 20 degree C difference by using 30 degree stop bath and 10 degree fixer (ice bath)

Terry
Posts: 3
Joined: Mon Nov 07, 2005 5:08 pm
Location: Seattle, WA

Film Reticulation

Postby Terry » Fri Nov 18, 2005 2:40 am

Thank you Jon Meded. I ordered film from J and C which was delivered within a week. I shot and processed a roll yesterday and made prints today and the film is clearly reticulated!

Like you wrote - it feels and acts like "old-fashioned" film. And like the films I learned on years ago, the film base is so thin that it can easily pop out of focus in the negative carrier. A minor problem.

My students are going to have fun with this assignment.

-Terry

clarita
Posts: 5
Joined: Fri Oct 28, 2005 11:10 am

Postby clarita » Mon Nov 21, 2005 4:35 pm

can someone explain what reticulation is a=excatly or direct me somewhere I can learn more? Ive no idea but it sounds exciting.

Terry
Posts: 3
Joined: Mon Nov 07, 2005 5:08 pm
Location: Seattle, WA

Postby Terry » Mon Nov 21, 2005 5:08 pm

Reticulation is a repeated pattern in the film grain - like interlinking puzzle pieces. When a small section of 35mm film is blown up considerably, the pattern is most obvious. Of course, it doesn't necessarily look good on all subjects (like portraits) but the crackle effect can be subtle and interesting.

My method is to develop film at the regular time & temperature then rinse in water to stop development. Next rinse in very hot (140+ F) for 1 minute followed by a rinse in very cold ice water for 1 minute. Finally - stop, fix, wash, etc. at normal temperatures. Be careful with the film while it dries because emulsion is pretty delicate when it's wet.

Give it a try!

clarita
Posts: 5
Joined: Fri Oct 28, 2005 11:10 am

Postby clarita » Tue Nov 22, 2005 3:53 am

thanks, will try this when I take some suitable pics.

tornredcarpet
Posts: 21
Joined: Thu Sep 15, 2005 1:46 pm

Postby tornredcarpet » Wed Nov 23, 2005 5:30 am

Reticulation is caused by a swollen emulsion (be it from long periods in water or in very warm water) suddenly shrinking by exposure to very cold water.
i.e. try reticulating glass. =P It shatters into a very distinct pattern.

pentaxpete
Posts: 86
Joined: Thu Jan 12, 2006 7:19 am
Location: BRENTWOOD,Essex,(UK)

Reticulation

Postby pentaxpete » Thu Jan 12, 2006 7:52 am

Hi folks! A Newbie on this site but an OLD snapper!
Some years ago I was getting reticulation with a batch of Ilford FP4 I was using for local press work; it was supplied by the newspaper. I found it was a bad batch out of the Ilford factory. I got it using Crawley's FX18 formula, which seems to have vanished now. I wonder if the alkalinity of the dev. had any effect as well?
Got COMPUTERISED and 'slightly Digitised Pentax K10D' but FILM STILL RULES !


Who is online

Users browsing this forum: Google [Bot] and 1 guest