Times and dilution for Kentmere 400 @ EI200 in HC-110?

[philipus]

Hello everyone

I have a few rolls of Kentmere 400 that I shot at 200 quite a while back. I haven't got around to developing them but thought I should do so soon. The problem is that I haven't developed Kentmere at EI200 before using HC-110.

The MDC has one entry for Kentmere 400 at box speed - 16 min at 20C in Dil F.

I checked filmdev.org and found an entry for stand development but it's not entirely on point.

To further complicate things, I need to develop at 18C. So can anyone advise on the times for this film, shot at 200, and developed at 18C?

A great many thanks in advance
Cheers
Philip

 

[Mablo]

I have just one note in my own dev chart for Kentmere 400 in HC-110. It says: @400, HC-110B, 20C, 8 minutes, normal agitation (OK). OK means the recipe has been tested by me but I can't say when. You want to decrease my dev time for one stop more exposure but your lower temperature choice will counterbalance that so I'd say 8 minutes could be there or thereabout.

 

[philipus]

Tack mablo, much appreciated. This is very helpful. I will give it a go.

 

[Filzkoeter]

I think that 8 minutes will be MUCH too long in HC110 dilution B...
Some hours ago I developed some RPX400 in HC110 (some people claim that rpx is relabled kentmere... I'm not sure about this, looks different to me... but I have no experience with Kentmere in HC110).
I shot it at 800 und developed it for 7 1/2 min. in dilution B at 20°C. The negatives look good to me & scan nice.
(click me, I'm an example)

Found that list: http://www.photostock.fr/site/HC110.pdf it says 5 minutes for Kentmere400 @ 400 in HC110 B; that's also the same time on the RPX400 sheet.

I would try it for 5 minutes in dilution B at 18°

 

[sjgslack]

With HC110 B kentmere times are just under those of tri-x in my experience. 5:30 at 20 degrees would suit perfectly in my opinion... Maybe adjust slightly for 18 degrees.

 

[philipus]

So, let's see if I understand all of this, having read around a bit more.

Assuming I can base myself on Tri-X times, then dilution B times at 20C for ISO 400 would be 6 mins.

Using the time/temp conversion charts on Digitaltruth or on Covington's site, at 18C the time would be approx. 7,5mins, perhaps a bit less.

Then, as I understand it from googling a bit, since I shot at EI 200 I should shorten the times by around 20% (right?). I would then land on about one minute shorter, or say 6-6,5 mins.

Does that make sense for dilution B?

Many thanks
Philip

 

[sjgslack]

That sounds pretty reasonable to me - I for one would be very interested to see the result. I regularly push Kentmere to 1600 (which works very well), I have even pushed it to 3200, but I have never pulled it.

So, let's see if I understand all of this, having read around a bit more.

Assuming I can base myself on Tri-X times, then dilution B times at 20C for ISO 400 would be 6 mins.

Using the time/temp conversion charts on Digitaltruth or on Covington's site, at 18C the time would be approx. 7,5mins, perhaps a bit less.

Then, as I understand it from googling a bit, since I shot at EI 200 I should shorten the times by around 20% (right?). I would then land on about one minute shorter, or say 6-6,5 mins.

Does that make sense for dilution B?

Many thanks
Philip

 

[philipus]

Thanks Silas. I'll certainly post back the results.