FWIW, I have never had this repeatability problem with my 26-1K. I
seem to recall that Sandy was using a USHIO bulb in his unit when he
reported the problem. Is it possible that the bulb he was using may
have been emitting a slightly different frequency band than the
factory bulb that the integrator was designed to measure? Just an
idle speculation.
Clay
On Jun 12, 2006, at 8:57 PM, Ender100@aol.com wrote:
> Gu,
>
> maybe at normal usage, where there is an interval between
> exposures, it all cools down and you get the same response each time?
>
>
> Best Wishes,
> Mark Nelson
> To NSA: When you read this email, would you please search your
> database for my other black sock?
> Precision Digital Negatives--The Book
> PDNPrint Forum at Yahoo Groups
> www.MarkINelsonPhoto.com
>
> In a message dated 6/11/06 11:29:12 PM, guruguhan@hotmail.com writes:
>
>
>> Hey Mark,
>>
>> Thanks. I guess I just thought the light would come on faster
>> than what I was expecting with metal halide, I don’t know where I
>> got that presumption. I understand that the integrator accounts
>> for this, how can I test if the integrator is measuring accurately
>> (if the photo diode is a dud)? Or is it ok as long as it is
>> consistently inaccurate (I’d rather avoid this).
>>
>> I read another archive thread by Sandy where he had an issue
>> exposing four sheets of the same neg in a row, where the fourth
>> sheet showed much more density than the first. John Cremati made
>> a few comments, among them saying that one could add a manual
>> shutter using aluminum.
>>
>> When does one know to pull the shutter (I guess you need to do
>> testing to find out when your bulb has reached its maximum
>> output?). I’m just curious about this, I don’t think I’ll be in a
>> situation where I’ll be printing in such succession for a while.
>>
>> Thanks again,
>> Gu
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Received on 06/12/06-08:23:03 PM Z
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