645D II hi-ISO low noises?

VoiceOfReason · 02-17-2014, 08:07 PM

Originally posted by i83N

160 maybe 200

I would have figured much lower than that.

Ryan Tischer · 02-17-2014, 08:32 PM

Why wouldn't the ISO go down to 100 like the 645D?

If it's 50mp, has a beautiful file like the original 645D and can shoot at higher ISO allowing me to do some longer exposures and capture images of the Milky Way I'll probably get it. I've been thinking about getting a D800 or Sony a7r to compliment my 645D gear, but this would fulfill most needs for me (except being lightweight and compact like the a7r could be). I'd probably have to sell my 645D first though to afford/justify it!

Pepe Le Pew · 02-17-2014, 08:50 PM

Originally posted by RonHendriks1966

Thanks for quoting me. Well using hi-iso dose make a difference.

I took last year the 645D also with me to a Muah Thai fightnight, and only the 55mm lens with me.

In 2012 a serie with lots off equipement:
645D userreview with 85 images

Well as far as I know it is the combination off larger sensor and large pixels that will give great low noise with hi iso.

Looking at the performance for the current camera's:
http://www.dxomark.com/Cameras/Compare/Side-by-side/Sony-A7R-versus-Nikon-D4-versus-Canon-EOS-1Dx___917_767_753

So I guess that when the difference between aps-c and full frame is the same as between 645D and full frame comparing sensor size then the sports low light hi iso performance will be around iso 5000 in this same messurement. Unless offcourse there is a new technological advantage created that is not yet present in current sensors. If so, maybe the new D4s will get that same boost. Even so there will be more noise coming in at hi iso, but maybe even iso 25.600 will be very well to clean up.

Love this pic

VoiceOfReason · 02-17-2014, 10:54 PM

Originally posted by Ryan Tischer

Why wouldn't the ISO go down to 100 like the 645D?

If it's 50mp, has a beautiful file like the original 645D and can shoot at higher ISO allowing me to do some longer exposures and capture images of the Milky Way I'll probably get it. I've been thinking about getting a D800 or Sony a7r to compliment my 645D gear, but this would fulfill most needs for me (except being lightweight and compact like the a7r could be). I'd probably have to sell my 645D first though to afford/justify it!

With a CMOS sensor I would think they could pull off 50.

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02-17-2014, 08:07 PM	#16
VoiceOfReason Site Supporter Join Date: Jun 2010 Location: Mishawaka IN area Photos: Albums Posts: 6,124	Originally posted by i83N 160 maybe 200 I would have figured much lower than that.

02-17-2014, 08:32 PM	#17
Ryan Tischer Veteran Member Join Date: Feb 2012 Location: Duluth, Minnesota Photos: Albums Posts: 458	Why wouldn't the ISO go down to 100 like the 645D? If it's 50mp, has a beautiful file like the original 645D and can shoot at higher ISO allowing me to do some longer exposures and capture images of the Milky Way I'll probably get it. I've been thinking about getting a D800 or Sony a7r to compliment my 645D gear, but this would fulfill most needs for me (except being lightweight and compact like the a7r could be). I'd probably have to sell my 645D first though to afford/justify it!

02-17-2014, 08:50 PM	#18
Pepe Le Pew Veteran Member Join Date: Jan 2013 Photos: Albums Posts: 591	Originally posted by RonHendriks1966 Thanks for quoting me. Well using hi-iso dose make a difference. I took last year the 645D also with me to a Muah Thai fightnight, and only the 55mm lens with me. In 2012 a serie with lots off equipement: 645D userreview with 85 images Well as far as I know it is the combination off larger sensor and large pixels that will give great low noise with hi iso. Looking at the performance for the current camera's: http://www.dxomark.com/Cameras/Compare/Side-by-side/Sony-A7R-versus-Nikon-D4-versus-Canon-EOS-1Dx___917_767_753 So I guess that when the difference between aps-c and full frame is the same as between 645D and full frame comparing sensor size then the sports low light hi iso performance will be around iso 5000 in this same messurement. Unless offcourse there is a new technological advantage created that is not yet present in current sensors. If so, maybe the new D4s will get that same boost. Even so there will be more noise coming in at hi iso, but maybe even iso 25.600 will be very well to clean up. Love this pic

02-17-2014, 10:54 PM	#19
VoiceOfReason Site Supporter Join Date: Jun 2010 Location: Mishawaka IN area Photos: Albums Posts: 6,124	Originally posted by Ryan Tischer Why wouldn't the ISO go down to 100 like the 645D? If it's 50mp, has a beautiful file like the original 645D and can shoot at higher ISO allowing me to do some longer exposures and capture images of the Milky Way I'll probably get it. I've been thinking about getting a D800 or Sony a7r to compliment my 645D gear, but this would fulfill most needs for me (except being lightweight and compact like the a7r could be). I'd probably have to sell my 645D first though to afford/justify it! With a CMOS sensor I would think they could pull off 50.