Unknown Film in Bulk Loader

[wallacjm]

I received an Alden 74 daylight bulk film loader with film in it. What steps do I take to find out if the film is color or B&W? If is it B&W what are the steps to figure out the ISO? I can develop B&W film in only.

 

[xkaes]

#1 -- send us a COLOR photo of an inch of the stuff -- both sides!

 

[AnselMortensen]

*Generally*, if the emulsion side of the film is tan, it is a color film...if gray, B/W.
Fastest way to find out would be to spool off a 10-12 exposure roll into a cassette, and without exposing the film, process it in black & white chemicals for 10 minutes @68°F.
You should get an answer after the film is fixed. You can read the film edge printing, whether it's color or B/W film.

 

[wallacjm]

*Generally*, if the emulsion side of the film is tan, it is a color film...if gray, B/W.
Fastest way to find out would be to spool off a 10-12 exposure roll into a cassette, and without exposing the film, process it in black & white chemicals for 10 minutes @68°F.
You should get an answer after the film is fixed. You can read the film edge printing, whether it's color or B/W film.

So I used my Canon EOS 620 to take photos at ISO 100, 200, 400 on automatic with the same scene. I just finished developing the film as ISO 400 with Arista chemicals and I have images! So I believe it is B&H. Now how do I determine the ISO of the film?

 

[Marcelo Paniagua]

So I used my Canon EOS 620 to take photos at ISO 100, 200, 400 on automatic with the same scene. I just finished developing the film as ISO 400 with Arista chemicals and I have images! So I believe it is B&H. Now how do I determine the ISO of the film?

I assume You mean b/w. I suggest taking different exposures with different ISO on the same roll and develop for your usual developer /time. Check which ISo give you the image you like better. I usually do D-76 stock for 7 minutes.

 

[Christiaan Phleger]

Is there any edge codes, frame numbers or other markings? Its possible to deduce the film type from those. You may have either something really normal like Foma 100 or maybe something interesting like Panatomic-X. Good luck and let us know!

 

[AnselMortensen]

Can you post a photo of the negatives, (taken back-lit against a light box or the sky), showing the sprocket holes and film edges?

 

[pentaxuser]

Even if there is no evidence of edge markings, the fact that you took same scene shots at 3 different speeds should indicate, if not ascertain what its ISO is or so I'd have thought

pentaxuser

 

[mshchem]

Easy to check for remjet, a little warm water rubs off between your fingers.

 

[Romanko]

As others suggest, shoot several frames (preferably of a low-contrast scene) bracketing your exposures at say EI 50, 100 and 200 and develop the film. If there are no edge marks you'll still know the approximate speed of the film.

 

[Romanko]

Now how do I determine the ISO of the film?

You post a photo of the negative on the light table (computer monitor) and wait for the reply.

 

[wallacjm]

So I used my Canon EOS 620 to take photos at ISO 100, 200, 400 on automatic with the same scene. I just finished developing the film as ISO 400 with Arista chemicals and I have images! So I believe it is B&H. Now how do I determine the ISO of the film?

Thank you! It is Ilford HP5 plus ISO 400.

 

[wallacjm]

As others suggest, shoot several frames (preferably of a low-contrast scene) bracketing your exposures at say EI 50, 100 and 200 and develop the film. If there are no edge marks you'll still know the approximate speed of the film.

Thank you! It is Ilford HP5 plus ISO 400.

 

[wallacjm]

I assume You mean b/w. I suggest taking different exposures with different ISO on the same roll and develop for your usual developer /time. Check which ISo give you the image you like better. I usually do D-76 stock for 7 minutes.

Thank you! It is Ilford HP5 plus ISO 400.

 

[wallacjm]

I received an Alden 74 daylight bulk film loader with film in it. What steps do I take to find out if the film is color or B&W? If is it B&W what are the steps to figure out the ISO? I can develop B&W film in only.

Thank you for your assistance. When I developed the film, I found that it was Ilford HP5 Plus ISO 400.

 

[pentaxuser]

Thank you! It is Ilford HP5 plus ISO 400.

The great thing about Ilford films and some other makes is that even if the negs have been wrongly developed there is always edge markings to tell you what it was

pentaxuser