Parity in Neat Image

[symes]

I have a bunch of shots from a theatre perfomance put on by a local group. Now I have shots at ISO's ranging from 100 - 1600...I am fixing these images in Neat Image and would like some sort of parity that is more acurate than my Eye

It is easy enough with a constant ISO but is there some sort of percentage I could use to achieve this with multiple ISO's?

Cheers...

[robertwgross]

Parity?

Please clarify.

---Bob Gross---

[symes]

Parity?

Please clarify.

---Bob Gross---

Sorry I mean similar results...funtional similarity...

I am sorry i am at work and the names on the sliders aren't sitting in front of me but I am wondering if there is any correlation I could work out

Ie if one is set at 100% noise reduction for ISO 1600 would an image at 50% noise reduction and ISO 800 be the same?

I certainly understand there are a lot of outside elements but given a very similar setting (in this case more/less lighting on the theatre stage) is there anything I can do, aside from eyeing it and comparing the ISO 400 results to the ISO 800 results?

Cheers...

[symes]

any ideas?

[MTalley]

I think if you group the photos by ISO and analyze one image from each ISO range, you can save the results per ISO and apply those settings to all the photos in that ISO range. Does that make sense?

[symes]

I think if you group the photos by ISO and analyze one image from each ISO range, you can save the results per ISO and apply those settings to all the photos in that ISO range. Does that make sense?

Indeed it does make sense and I have used the same settings for the same ISO. What I am looking for is:

Pictures that will have the same level of noise given different ISO levels...

The reason I am asking is some photos required ISO 1600 to get the action while others required 800 even down to 200. What I was curious about is something more I can do to ensure similarity after they are processed through NeatImage?

Cheers,

[MTalley]

I see your point, too. Seems that if an ISO-400 image had a particular amount of specular red noise from certain sensor elements, then ISO-800 would probably have some increasing amount of specular red noise, probably from the same sensor elements, and so on.

I'm not sure how predictive this theory would be, but it seems like it might be somewhat linear in nature for any given pixel element. Check the NeatImage site. I know some folks have posted entire sets of noise profiles for various camera types by camera setting, etc.

OTOH, I was under the impression that each camera's sensor probably had its own unique noise patterns for any given setting, so I haven't tried that route yet. Also, I've primarily been shooting at ISO 100 - 200 so far and haven't had to fall back to NeatImage for my DRebel yet.

[PhotosGuy]

I think "eyeing it" would be the best way to do it.
(If it had been me, I'd shoot RAW & use RawShooter to apply settings from similar ISOs to other pics in the same group as a starting point for conversions. )

[symes]

I think "eyeing it" would be the best way to do it.
(If it had been me, I'd shoot RAW & use RawShooter to apply settings from similar ISOs to other pics in the same group as a starting point for conversions. )

Well then I guess we are on the same page there...that is exactly what I did...very close to the same settings for the same ISO's...but I guess eyeing it is the way to go...

Cheers everyone