[alt-photo] Re: NuArc UV units question

[Greg Franco]

I also just purchased a used 26-1k so not sure of the bulb age... but 120 
units exposes for 3:54...  so just under 4 minutes.  I had an older 
Amergraph V28-1200 unit before this... and I replaced the bulb on that when 
I first got it and the exposure times basically dropped in half with the new 
bulb.


> 2010/4/10 Paul Viapiano <viapiano at pacbell.net>:
>> Hi all...
>>
>> Just got around to playing with a NuArc 26-1K I picked up a while back. 
>> It's
>> in beautiful shape, everything works well but I have a question.
>>
>> I took at least 120 units (120.0 on the readout) to get a decent ball 
>> park
>> gum exposure, but it took 9 1/2 minutes to reach that level. That seems
>> awfully long to me. My sun exposures with the same negs are 2 - 2 1/2
>> minutes.
>>
>> Now, I know they're not going to be the same but I'm wondering about the 
>> age
>> of the bulb here. So can anyone tell me how long an exposure in UV units 
>> is
>> so I can compare? Anyone with a fresh, or close to it, bulb? Any process 
>> at
>> all, doesn't matter. I just want to see what 120.0 units times out to on
>> another machine...
>>
>> Thanks everyone...
>>
>> Paul