BW film with a clear base? Not pinkish.

berci

berci

Photographer Level: ****
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Hey fellow Addicts,

Can someone recommend a normal bw negativ that comes with a clear base?

I would like try my ide of producing bw slides using my slide copier.

#:-]

Berci
 
Gigabitfilm has an absolute clear base, Rollei R3 is clear too, but with a very light grey cast.
 
Socke said:
Lucky SHD may work, it has a very clear base.
Click to expand...

That's only because there's (almost) no anti-halation dye to wash out. The same goes for Gigabit. Lucky is probably a good choice under controlled lighting and cheap!

There is Fomapan R100 if you're looking for b/w slides. Try www.retrophotographic.com for details.

Mark
 
berci said:
Hey fellow Addicts,

Can someone recommend a normal bw negativ that comes with a clear base?

I would like try my ide of producing bw slides using my slide copier.

#:-]

Berci
Click to expand...

Berci,

Did you know you can simply develop your B&W film as a positive? If having a B&W slide is what you're after, you have a couple of options:

1) Use the DR5 service (http://www.dr5.com)

2) Process the film yourself to produce a positive image. Kodak makes a direct reversal kit for T-MAX film:

http://www.kodak.com/global/en/prof...ingOutfit.jhtml?id=0.1.20.14.18.14.7.32&lc=en

A lot of the older 'darkroom' books also contain formulae for taking any B&W neg film to a positive instead. I'm sure some work better than others, but I've never tried any of them.

Best Regards,

Bill Mattocks
 
I undestand the route you are pursuing, and a light gray base is not bad at all for "positives"... been there. I used a bellows/copy pod and a light table as my "BW slide maker"

The chinese films (Lucky and such) have clear bases, and so I understand the microfilm based ones.
Foma has a light bluish tint which is non intrusive IMHO as well, and the gray base of the EFKES may be good enough.

I used to use AGFA APX to obtain "negatives" in the print I guess the base color was not an issue.
And Kodak HCF (medical purposes) when making slides for presentations.
 
Hey guys,

Thank you for all thisinvaluable information.

Now I will have to find a place in London (or an UK webshop) where I could buy the Kodak direct reversal kit.

And I have a 50 feet tank for Super 8 too. #:-]

I can hardly wait. #:-]
 
berci said:
Hey guys,

Thank you for all thisinvaluable information.

Now I will have to find a place in London (or an UK webshop) where I could buy the Kodak direct reversal kit.

And I have a 50 feet tank for Super 8 too. #:-]

I can hardly wait. #:-]
Click to expand...

Here's the skinny on a bunch of B&W slide-making methods (from my site):

http://www.photosensitive.ca/BWslides.shtml

(If anyone has any additions or corrections to my list, please let me know.)

The standard recommendation for copying negs to make slides is to use Kodak 5302 film (a slow, blue-sensitive, clear-base film used for making motion picture positive "prints" from negative film) It comes in 100' bulk rolls but can be really hard to find -- but it works very well for the purpose. (I've used it, and the slides are great.) Tech Pan used to be another common suggestion. In any case, you'll need to develop to a pretty high contrast (paper developer works well for this.)
 
bmattock said:
There's a nice discussion on this very topic on APUG at the moment:

http://www.apug.org/forums/showthread.php?t=23233

Of course, RFF is a better forum...just saying...

Best Regards,

Bill Mattocks
Click to expand...

Grat minds think alike, Bill :)

Of course RFF is a better forum but APUG ain't half handy for things like this. I just checked the price of that TMAX reversal kit at Silverprint, 44 GBpounds, WOW.

Mark
 
markinlondon said:
Grat minds think alike, Bill :)

Of course RFF is a better forum but APUG ain't half handy for things like this. I just checked the price of that TMAX reversal kit at Silverprint, 44 GBpounds, WOW.

Mark
Click to expand...

Wow is right! What's it made of, gold dust?

Well, there is always the old-fasioned method of creating B&W reversals from standard B&W chemistry (more or less). I have a bunch of recipes in my various ancient darkroom chemistry books, if you like I can hunt them up and post them.

Best Regards,

Bill Mattocks
 
If the color of the base is a concern, stay well away from NeoPurple. I'm still not quite sure I'm washing it enough, but it seems to be the base itself.
 
How to get hold of these chemicals?

How to get hold of these chemicals?

It seems that I will go along the Ilford way of reversal processing adjusted to my available films and chemicals just because the process is well documented by Ilford.

However, I have no idea where I could buy (in London) these chemicals:

sodium thiosulphate

potassium permanganate

sulphuric acid

sodium or potassium metabisulphite

These all are mentioned in the Ilford reversal processing manual.

Berci
 
Berci,

Silverprint is the place to go. Check www.silverprint.co.uk.

Look under chemicals. You will find a ready-made Speedibrews reversal kit at £6 for 4 35mm rolls or all the raw chemicals you need. They are behind Blackfriars Road and open Monday-Friday.

They are always my first stop for traditional materials.

Mark
 
Hey Mark,

Many thanks!!!

It's not very far from where I work, I will probably dash out tomorrow at lunchtime to buy the Speedibrew thing.

Berci
 
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