New Adox ISO 50 Film

[pentaxuser]

So in summary, it is in fact a high contrast film that has been treated by Adox to make it a low contrast or normal contrast film( which one is it in the scale of low to normal?) with the capability to be successfully developed in a whole range of developers and not just a tailor-made Adox developer and still have a speed of 50? Have I got this correct?

Where does this leave Rudeofus' large potential for pushing? While a speed of 50 in N Europe might make it usable for 3 out of the 4 seasons, even a yellow filter reduces it to 25 which is borderline hand-holdable and yellow-green or orange makes hand-holding near impossible unless the aperture is f8 or bigger. However it may be that another feature of the film is its ability to produce results with a one stop yellow filter that most other films can only achieve with orange and if so then a yellow at 25 might be fine and the use of other darker filters becomes unnecessary.

Can Mirko or others with knowledge comment on its ability to render a blue sky quite a bit darker than a yellow normally manages in say the U.K.

Thanks

pentaxuser

 

[ADOX Fotoimpex]

So in summary, it is in fact a high contrast film that has been treated by Adox to make it a low contrast or normal contrast film( which one is it in the scale of low to normal?) with the capability to be successfully developed in a whole range of developers and not just a tailor-made Adox developer and still have a speed of 50? Have I got this correct?

Where does this leave Rudeofus' large potential for pushing? While a speed of 50 in N Europe might make it usable for 3 out of the 4 seasons, even a yellow filter reduces it to 25 which is borderline hand-holdable and yellow-green or orange makes hand-holding near impossible unless the aperture is f8 or bigger. However it may be that another feature of the film is its ability to produce results with a one stop yellow filter that most other films can only achieve with orange and if so then a yellow at 25 might be fine and the use of other darker filters becomes unnecessary.

Can Mirko or others with knowledge comment on its ability to render a blue sky quite a bit darker than a yellow normally manages in say the U.K.

Thanks

pentaxuser

I would not see large push processing potential here unless you accept steep gamma in the midtones. What we made here is pretty much it in respect to speed options for a given nice gamma.
I guess it depends on which look you like.
The response to filtration is excellent (which means "yes" to your question). Not only are we presenting the new film but also our new line of *SNAP ON* gel-filters and we found this material to be one of the best.
Examples will follow shortly.

Thanks,

Mirko

 

[AgX]

Very interesting !!
Why didn't I had that idea...

see here too (in the context of Kodak reintroducing Ektachrome):
https://www.photrio.com/forum/threads/kodak-reintroduces-ektachrome.143089/page-73#post-2112766

 

[Rudeofus]

Where does this leave Rudeofus' large potential for pushing? While a speed of 50 in N Europe might make it usable for 3 out of the 4 seasons, even a yellow filter reduces it to 25 which is borderline hand-holdable and yellow-green or orange makes hand-holding near impossible unless the aperture is f8 or bigger.

I would like to qualify my statement about pushing: this very long toe will allow some degree of underexposure if one is willing to accept a steep mid tone curve, but pushing will not turn this film into a high ISO emulsion. If you need high speed, proper ISO 400+ emulsions will likely give more usable results.

 

[Rudeofus]

I also have a question for Mirko: I see some kind of weak shoulder in the Agfa data sheet above D=1.5 for longer development times, but definitely not a pronounced shoulder like the one shown in Adox's data sheet. Is this due to the rather dilute developer used by Adox, or did you do some other modifications to the Agfa product? This is modified Aviphot Pan 80, yes ?

 

[AgX]

Concerning the new filters, I would like to have a full range of CC-filters in 10x10cm.
Maybe there is a market for such too.

Last time I saw such offered in Germany was at Brenner in the 90s...

 

[pentaxuser]

Thanks Mirko and Rudeofus. That clarifies matters

pentaxuser

 

[Bill Burk]

I think the scale is units of LogE, as in ... each line is 1.0

I don’t think that it is 0.5 because I often study film over 3.0 units’ of exposure and I rarely see the shoulder (because most step wedges are 3.0). I aim to have the toe on the far left of my graphs, and a little over 3.0 across the x-axis fills my graph page.

If the scale were 0.5 LogE then six lines would cover 3.0 and, as I see, you would go from toe to shoulder. It’s not 0.5

I overlaid the characteristic curve on the graph paper I usually use and see that the scale is most likely 0.3 LogE units per division (1 stop).

This is a non-distorted scale, the LogD units are drawn to the same scale.

As I see it now, this film does indeed have a very pronounced shoulder.

So you should NOT expect a wide latitude. The best exposure will be at 50. It is best NOT to overexpose the film, so if you were to err in exposure... err towards underexposure.

The long toe will make shadows open and graceful.

If you have ever wanted to see chalk and blocked highlights, you can get that with this film. I am interested in that because the film that I am most familiar with has no shoulder like this. I actually had planned on using a superproportional reducer to try to achieve this look. Now here is a film that can give it - simply by giving a slight overexposure!

But the film looks like it will give its best results at the least exposure, a slightly low-contrast to normal contrast scene, but it will block highlights with high contrast and or with overexposure.

 

[Bill Burk]

I would not see large push processing potential here unless you accept steep gamma in the midtones. What we made here is pretty much it in respect to speed options for a given nice gamma.
I guess it depends on which look you like.
The response to filtration is excellent (which means "yes" to your question). Not only are we presenting the new film but also our new line of *SNAP ON* gel-filters and we found this material to be one of the best.
Examples will follow shortly.

Thanks,

Mirko

Thanks Mirko,

This looks like an exciting film! I think it will provide great results at 50 developed as shown on your graph, and with the same development... people can try 100 since the toe is long and some shadow detail appears early.

 

[twelvetone12]

Thanks Mirko! It seems a very interesting film! Will it be released also in super8 after all?

 

[AgX]

As many others Adox use a graphic without unit for the sensitivity, also the light source is not defined. A classic wedge spectrograph that makes true comparison impossible. (What did not bother Apuggers so far...)
A manufacturer that aims at an engineering customer would would use as unit for instance J/m2, what of course would also take care of the spectral characteristic of the light source.

Actually, I wasn't really interested in any absolute numbers and units in the X axis. I'd simply like to know how many stops it translates to, in order to get an estimate of this film's latitude.

I just realized that the initial question was on the characteristic curve while I was refering to the spectral sensitivity curve...
Sorry for any confusion I started.

 

[destroya]

Will this film be available in bulk rolls?

 

[Poisson Du Jour]

Funny that I have only just seen this thread!
Currently got a roll of CMS 20 II in my EOS 1N in readiness for a weekend shoot, expected to be grey and wet, to which this film works well. Will keep the prospect of an ADOX ISO 50 film in mind even though my standard stock at that speed is Ilford's Pan F+ 50.

 

[Andrew O'Neill]

I would not see large push processing potential here unless you accept steep gamma in the midtones. What we made here is pretty much it in respect to speed options for a given nice gamma.
I guess it depends on which look you like.
The response to filtration is excellent (which means "yes" to your question). Not only are we presenting the new film but also our new line of *SNAP ON* gel-filters and we found this material to be one of the best.
Examples will follow shortly.

Thanks,

Mirko

Great idea for snap on filters. I'm hoping different sizes will be available.

 

[AgX]

Funny statement, knowing they were the first major producer who closed. Yes, I know it was Agfa Leverkusen and it was mostly color emulsion. But still funny.

No, it was NOT a statement from Agfa Leverkusen, but from Agfa Mortsel, several years after the closing of the Leverkusen plant.