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View Full Version : VPN...What Gives?

benjikan
03-30-2007, 01:08 AM
There have been many people on different forums expressing their concerns regarding VPN (Vertical Pattern Noise) in the Pentax K10D. Although I haven't experienced this anomaly, those who have done so feel that Pentax have not addressed these concerns. Can a Firmware Update resolve this issue? Is it exclusive to Pentax or does it come down to understanding the limits of the digital domain. I tend to believe that if ones exposure is correct within reason, that this issue does not crop up.

Ben
timmciglobal
03-30-2007, 02:14 PM
The issue is an issue because it happens in no other brand of camera at such low ISO's. Even ISO 100 pushed more then a stop sometimes shows it.

Tim
1ajs
03-30-2007, 03:00 PM
The issue is an issue because it happens in no other brand of camera at such low ISO's. Even ISO 100 pushed more then a stop sometimes shows it.

Tim

huh????????????
rprii
03-31-2007, 09:26 AM
The issue is an issue because it happens in no other brand of camera at such low ISO's. Even ISO 100 pushed more then a stop sometimes shows it.

Tim

I have had my K10D since 11/17/2006 . . . used it with many different lenses (I have chronic LBA) under a wide variety of conditions and never experienced the VPN phenomenon. :D
I tend to agree with Benjikan . . . maybe it is an exposure issue??? Quality of lens??? Hard to say since I have never experienced the problem.
Peleg
04-07-2007, 11:03 AM
There have been many people on different forums expressing their concerns regarding VPN (Vertical Pattern Noise) in the Pentax K10D. Although I haven't experienced this anomaly, those who have done so feel that Pentax have not addressed these concerns. Can a Firmware Update resolve this issue? Is it exclusive to Pentax or does it come down to understanding the limits of the digital domain. I tend to believe that if ones exposure is correct within reason, that this issue does not crop up.

Ben

...in situations where it was very dark, I underexposed the picture and then lightened it a lot in PP. I have never seen it under 1600 ISO. Some obsess over this but I've yet to see any actual pics w/ VPN at low ISOs.