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agc828 Nov 29, 2009 12:06 AM

High ISO NR 101
Do you guys have "High ISO NR" set to normal, low or off? I had mine set to "normal" but read that you do loose some detail. While if set to "low" most of the detail is retained with a little NR active. So I set my D300 to "low". Will test tomorrow. Should see a difference in high ISO shots (e.g. ISO 2000-3200).

I have Lightroom but haven't had a chance to really play around with it. I think it has noise reduction ability. Might buy a copy of Noise Ninja later.

TCav Nov 29, 2009 6:50 AM

I have the HIGH ISO NR set to OFF, and I use the ISO sensitivity settings to limit the ISO to 1600. That's the point at which the noise starts getting noticeable on my D90.

I've been very pleased with the detail in my photos.

agc828 Nov 29, 2009 8:04 AM

Morning TCav,

Why "off" and a max ISO of 1600? Did you still notice some detail loss with your High ISO NR set to "low"? And is the max inspec ISO on your D90 3200?

TCav Nov 29, 2009 8:25 AM

When I shoot horses, I was losing a lot of detail in the horse's fur with HIGH ISO NR at Normal, but with it off I was getting noise in out of focus woodgrain at ISOs over 1600.

My D90 goes up to ISO 6400, but I've never tried it. For what I shoot, 3200 was unuseable. It's possible that, with HIGH ISO NR at Low, I could have used a higher ISO, but I haven't tried. I have large aperture lenses, so light isn't usually an issue.

agc828 Nov 29, 2009 8:50 AM

With the High ISO NR set to "normal" I did notice some noise in the background at ISO's over 2000. But I have managed several at ISO 3200 that weren't objectionable. The subject was in focus with quite a bit of detail.

But will experiment more with the NR set to either "low" or "off" today.

Your D90's "inspec" (useable or "recommended) ISO is 3200 like my D300's. While the max inspec ISO is still useable at 3200 it is better to keep the ISO Sensitivity set to one stop below. Or so I've been reading in the past. Which is where you have your D90 set to. Not sure where I'll keep my D300 set to yet.

peripatetic Nov 29, 2009 9:10 AM

If you are using Lightroom then shoot RAW. Doesn't matter where you set the NR then (I think - not being a D90 owner), and you will have more wiggle room.

Lightroom has pretty decent NR from 2.5 onwards, but a specialist plug-in will do even better.

agc828 Nov 29, 2009 12:06 PM

I always shoot RAW. :)

And I would assume that even if you are shooting in RAW it's better to start off with a cleaner and more detailed image. So I will likely leave High ISO NR "off". Not sure if I would ever want to even set it to "low". Or why any one would unless shooting in JPEG.

Presently, I'm running out of HD space on my MacBook Pro laptop. So I removed Lightroom and CS4 as part of my efforts to free up some space (along with backing up NEFs onto DVDs and removing them from my HD). Will install them on my iMac when I buy one. Will order with the 2TB HD. Funny how fast the HD space fills. :D

TCav Nov 29, 2009 12:12 PM


Originally Posted by agc828 (Post 1023504)
... Funny how fast the HD space fills. :D

Not really.

The bigger HDDs get, the more space on them S/W publishers like to waste.

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