Microphen with kentmere 100 asa

[derek andrews]

Hi again, after some disappointing results with Rodinal, I've decided to try it with microphen. I have looked up the times in the massive dev chart, but I'm still concerned about the amount of agitation. Any advice. I'm looking for fine grain and tonality (aren't we all)

 

[Willyekerslike]

Any advice..........Yes visit the Ilford web site and download the data sheet for Microphen, it will give you all the info you are looking for and more.

Hope this helps

Regards...W

 

[derek andrews]

Thanks. I never thought of the obvious!

 

[pentaxuser]

Kentmere 100, by most accounts I have seen, isn't the finest grain 100 film made, nor as I understand it, is Microphen the finest grain developer. So maybe not the best combo. If Kentmere is your choice and it is certainly cheaper than say Delta 100 then as it is a fairly low speed film I'd be tempted to try Perceptol, given your desired objectives.

pentaxuser

 

[MattKing]

Thanks. I never thought of the obvious!

Makes for a good signature line!

 

[David Luttmann]

Kentmere 100, by most accounts I have seen, isn't the finest grain 100 film made, nor as I understand it, is Microphen the finest grain developer. So maybe not the best combo. If Kentmere is your choice and it is certainly cheaper than say Delta 100 then as it is a fairly low speed film I'd be tempted to try Perceptol, given your desired objectives.

pentaxuser

Agreed. I want Microphen when I desire more pronounced grain. Depends on what the OP is after

 

[Pixophrenic]

Hi again, after some disappointing results with Rodinal, I've decided to try it with microphen. I have looked up the times in the massive dev chart, but I'm still concerned about the amount of agitation. Any advice. I'm looking for fine grain and tonality (aren't we all)

If you really want to reduce the grain considerably, Moersh Finol 1:100, 15 min at 20 C. The film will have an apparent EI of about 160. Just an opinion, as this developer is hard to get in North America.

 

[pentaxuser]

If you really want to reduce the grain considerably, Moersh Finol 1:100, 15 min at 20 C. The film will have an apparent EI of about 160. Just an opinion, as this developer is hard to get in North America.

Can you say where the information about the apparent increase in speed from 100 to 160 comes from? I note you say apparent increase. Your explanation may cover this but if not amplification of the meaning of "apparent" would be helpful.

Thanks

pentaxuser

 

[Pixophrenic]

I did bracketed exposures (+1, 0 and -1 stop) on several motives and visually the best negatives seem to be one stop underexposure, but not quite. "Correct" exposure was measured off a grey card. As I have no device to measure exact EI, thus I am saying "apparent".

 

[Ian Grant]

As pointed oot check the datasheet.

You're reading too much into all this,

Can you say where the information about the apparent increase in speed from 100 to 160 comes from? I note you say apparent increase. Your explanation may cover this but if not amplification of the meaning of "apparent" would be helpful.

Thanks

pentaxuser

According to the Moersch websiite Finol gives 1.3 less speed than Tannol-speed bit that only claims increased speed with extended devlopment.

One comment I'd make was I was surprised how well Staining developers like Pyrocat HD so Tanol-speed are for push processing, I had no option two years ago when shooting a moving train in failing light at 1/25th full aperture f5,5 (360mm Tele-Xenar) and around 1600 EI.

Ian

 

[pentaxuser]

I did bracketed exposures (+1, 0 and -1 stop) on several motives and visually the best negatives seem to be one stop underexposure, but not quite. "Correct" exposure was measured off a grey card. As I have no device to measure exact EI, thus I am saying "apparent".

Thanks for that. In the meantime I was able to find the Moersch website and get a translation into English. In the case of Finol his information suggests that you get one third of a stop less than box speed which for a fine grain developer sounds about right. I am not saying that your best speed isn't just over half a stop better than box speed but if this were to translate to a genuine one third of a stop increase, this sounds as if Herr Moersch has squared elusive circle of finer grain with better speed. If he has then I am surprised he doesn't make more of it in his description of Finol

pentaxuser

 

[Pixophrenic]

Thanks for that. In the meantime I was able to find the Moersch website and get a translation into English. In the case of Finol his information suggests that you get one third of a stop less than box speed which for a fine grain developer sounds about right. I am not saying that your best speed isn't just over half a stop better than box speed but if this were to translate to a genuine one third of a stop increase, this sounds as if Herr Moersch has squared elusive circle of finer grain with better speed. If he has then I am surprised he doesn't make more of it in his description of Finol

pentaxuser

Mr Moersch is very peculiar about conditions that achieve straight or near straight characteristic curve. Cannot say anything about that, but my negatives appear to have normal contrast. In the leaflet that comes with the developer films are rated both above and below rated speed when developed under recommended conditions. There is none for K100, so I made an educated guess. Somewhat shorter time may be better.