Unacceptable sporadic noise at ISO 50

Questions, comments and suggestions regarding Phase One IQ4, IQ3, IQ2 and IQ1 series digital camera backs.

Unacceptable sporadic noise at ISO 50

Postby Joris1 » Sat Sep 21, 2019 9:19 pm

Using the IQ160 on a PhaseOne body, tethered to CaptureOne, shooting in a studio at 2 sec. exposure, some images were suddenly marred with an incredible noise, resembling tiny little hairs from a colourful woollen sweater.
After switching the back off and back on, and reconnecting the cable, the noise would go away - super clean image at exactly the same settings!

I exchanged the cable for a brand new one - same problem. That seems to eliminate a cable issue.

Not a preview issue - irreparable defect in the files.

It was on a commercial job with client, had to have an assistant check every file as it came in to make sure there was no noise.

Any ideas what might cause this?
Joris1
 
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Re: Unacceptable sporadic noise at ISO 50

Postby Ulf » Fri Sep 27, 2019 10:05 am

Hi
Your best option is to contact support:
Http://support.phaseone.com
Make sure to include a RAW file.
Ulf
Crew
Crew
 
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