K20D, don't like cold temperatures?

Started Nov 15, 2008 | Discussions thread
Philippe Leroux New Member • Posts: 15
Re: K20D, don't like cold temperatures?

i know what the banding looks like, i do get it too
exactly the same 4 pixel wide horizontal frequency
that is 2 pixels whiter 2 pixels darker

in the previous picture i posted, there is also vertical banding, very different i agree. nevertheless, it is the same type

do an fft on the picture and you'll see there exist an horizontal high frequency, which shouldn't exist

i've done fft one both types of banding and there appears a spike at that particular vertical frequency on both images

to be sure, i've also compared shots wihtout problems
and then there is no spikes....
so yes i believe the problems are related

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