A Site for Photographers by Photographers

Featured Equipment Deals

Standing Out in a Sea of Competition Read More

Standing Out in a Sea of Competition

In a seemingly saturated industry such as wedding photography, how do you set your business apart and offer something truly unique? The talented Kristen Booth offers her insight to help you define...

Latest Equipment Articles

From Light to Ink: An Exhibit Using Canon's imagePROGRAF printers Read More

From Light to Ink: An Exhibit Using Canon's imagePROGRAF printers

"From Light to Ink" featured the work of Canon Inspirers and contest winners, all printed using Canon's imagePROGRAF printers. The gallery show revolved around the discussion of printing photographs...

Latest Learning Articles

Getting It Right in the Camera: The Imagination Game, Part 3 Read More

Getting It Right in the Camera: The Imagination Game, Part 3

Getting photographs right in the camera is a combination of using your imagination, creativity, art, and technique. In Part 3 of this three part series, we focus on shooting strategy and the role of...


old panchromatic film developing

Dean Kondziolka , Sep 03, 2002; 10:53 p.m.

Anyone recommend a developing time for old panchromatic film. All it had on it is 620. I have d-76 deveoper

Responses

Chris Eve , Sep 04, 2002; 04:31 a.m.

My "default" for old films like this that turn up in cameras for my collection is 10 minutes in D76. Most older "standard" films had a dev time around this figure. I've never had a complete failure, though the base fog and "print through" from the ink on the backing paper can be excessive if the film has been stored badly.

Chris Waller , Sep 04, 2002; 04:42 a.m.

I once developed a roll of Ilford Selochrome Pan which was about 40 years old. Work on the basis that film wil lose 1/2 stop of speed per 5 years. So if you film is 20 years old assume 2 stops loss and increase dev time accordingly. I work on the basis of 50 percent increase in dev time per stop. Fog levels will be high and you may need to intensify the negs as well.

Pete Andrews , Sep 04, 2002; 06:51 a.m.

Well, 620 is just the size of the film, and nearly all the B&W film made in the past 50 years has been panchromatic. 'Panchromatic' simply means that the film is sensitive to red light, as well as blue and green.<p>You haven't given anyone much information to go on, and films have quite widely varying developing times in D-76. Older, obsolete, films could vary even more than they do today.<p>If the film is really important, then I'd suggest you do a clip-test on it. The first and last inch or so of the film should be blank.<br>If you take a small clip of film from the end of the roll, you can then see, in the light, how long it takes to develop to a good black density, and this gives you at least a starting point for a reasonable developing time. (if you have access to a densitometer, aim for a density of around 2.5 to 3D, after fixing the film.)<p>Better to err on the side of too much development, rather than too little, in any case.

Dean Kondziolka , Sep 05, 2002; 01:19 a.m.

Thanks for all the feedback, I developed at 77 degrees for about 9 minutes and the images are as good as any I have seen!

Back to top

Notify me of Responses