I blew the original up on screen by a factor of at least 12, and confess all I 
saw was the equivalent of very fine grain in the image - rather like 
Panatomic-X developed in Microdol!  I would have been pretty pleased with that 
if I had taken that shot.

John in Brisbane



-----Original Message-----
From: PDML <[email protected]> On Behalf Of Larry Colen
Sent: Thursday, 6 June 2019 7:28 AM
To: Pentax-Discuss Mail List <[email protected]>
Subject: Re: Noisy K-3??

While sky is where I'll most often see noise, even at relatively high ISO (my 
K20 was horrible for that), when I took a look at it under magnification, that 
was pixelation noise rather than sensor noise.

I was worried about noise going from the K-5 to the K-3, and while noise per 
pixel may be higher, noise per area is at least as good, if not better.  It is 
only in the most adverse of conditions that even my K-1 shows significant noise 
advantage over my K-3s.

Granted, I seem to spend most of my time shooting in the most adverse of 
lighting conditions, so for me the K-1 is well worth it.

I suspect that some of the newest aps bodies will outperform the K-3 in raw 
sensor performance, they may even approach the K-1, being a couple of years 
newer.  That being said, a used K-3 is likely your best performance for the 
dollar in the K-mount world.

jtainter wrote on 6/5/19 1:34 PM:
> I am looking at a K-3 image over at dpreview. Here's the image:
> 
> https://www.dpreview.com/forums/post/62749887
> 
> Go down to my comment on it. If you enlarge the image (click on it after 
> opening it) the sky and clouds strike me as very noisy for ISO 100. Some of 
> that is oversharpening, but even the unsharpened image seems noisy to me.
> 
> This level of noise surprises me for ISO 100. Is this characteristic of the 
> K-3 sensor?
> 
> I stayed away from the K-3 because I was concerned about high ISO noise. But 
> ISO 100??
> 
> Thanks,
> 
> Joe
> 
> 
> 


--
Larry Colen           [email protected]          http://red4est.com/lrc 
https://www.flickr.com/photos/ellarsee/collections/72157612824732477/

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