Unicolor drum

Eric Mac · Jan 8, 2006

Oops, sorry about that. I am using Hc110b with Arista edu ( Forte). Doing the fim tests in trays gave me 5.25 minutes @ 68F. I just shot some zone viii test sheets to run tonite.

nworth · Jan 8, 2006

My experience is that the recommended times for tank development apply well to the Unidrum and Uniroller. Those are longer than the recommended times for tray development. (I usually use 125 ml of developer in the Unidrum.) Of course, different developers and different techniques may give different results. You will no doubt eed to experiment a bit to find the right times for your setup. Your first try may not be definitive. In general, the Unidrum works well.

Eric Mac · Jan 9, 2006

Just ran my first 4x5's through my newly acquired unicolor drum and motor. The negatives came a little dense, well actually real dense. I assume it is over developed due to the different agitation method. My old method was rocking them in an open tray. My google research shows I need to reduce the time by 15 to 20 percent. However this will put me under the 5 minute mark. I know in reels and tanks you try to stay over 5 minutes, but does this apply to the drum and motor method?

It is a joy using this method. No more hands in the soup and bumping around in the dark.

Thanking all in advance.

Eric

bobfowler · Jan 9, 2006

You didn't say which developer/film you're using, but... Try a more dilute developer solution for longer dev time, then knock off the 15-20%.

seadrive · Jan 20, 2006

Hi guys,

Is the Unicolor 8x10 film drum 8" long, or 10" long?

I'm trying to figure out if I could use it to develop two 5x7 sheets at a time. If the tube is 10" long, then I should be able to; if it's 8" long, then I can't.

Also, the solutions enter and exit the drum from the cuplike spout that's built into one of the caps, right?

TIA!

Steve

SteveH · Jan 20, 2006

For the unicolor drum and roller, take the times listed for tank development, and subtract 15% or so to begin with. I've found even this to make the negs abit dense, but it is a good starting point.
Im not sure what size the 8x10 Drum is. I have the 11x14 print drum, and it is 12" long. If someone needs the 12" long drum and has the 8x10 drum, I would be more than happy to trade, as I shoot 4x5 and this drum is too large.

bobfowler · Jan 20, 2006

seadrive said:
Hi guys,

Is the Unicolor 8x10 film drum 8" long, or 10" long?

I'm trying to figure out if I could use it to develop two 5x7 sheets at a time. If the tube is 10" long, then I should be able to; if it's 8" long, then I can't.

Also, the solutions enter and exit the drum from the cuplike spout that's built into one of the caps, right?

TIA!

Steve

You can do 2 5X7 sheets or 4 4X5 sheets in an 8X10 Unidrum. I do it all the time.

seadrive · Jan 20, 2006

bobfowler said:
You can do 2 5X7 sheets or 4 4X5 sheets in an 8X10 Unidrum. I do it all the time.

Thanks for the info, Bob.

Am I correct about the one-way-in, one-way-out solution path of the drum? I ask because I want to have the option to stand the drum on its base, without any of the developer spilling out the other end.

Regards,

Steve

SteveH · Jan 20, 2006

Steve,
You are correct in the fact that its a 1 way in/1 way out. However, the light trap has a 90' bend in it. Basically what this means is that the drum needs to be on its side to pour in/pour out the solution. But yes, if you stood it on its end, nothing will come out.

Regards,

bobfowler · Jan 20, 2006

seadrive said:
Thanks for the info, Bob.

Am I correct about the one-way-in, one-way-out solution path of the drum? I ask because I want to have the option to stand the drum on its base, without any of the developer spilling out the other end.

Regards,

Steve

Yup, it's exactly the way were glad our own bodies are not, one opening for both directions! Well, drink too much and... never mind...

Unicolor drum

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