Is there any reason to use shutter+aperture+iso?

robkar97 · April 15th, 2008

When using mr Photographic Exposure Control, is there any good reason to use Aperture + Shutter Speed + ISO and not just a single EV input!?

The manual states that shutter speed has no effect on motion blur, and ISO has no affect on image grain - so why bother fiddling with 3 values when you can do the same (?) with 1?

Robert

AJLynn · April 15th, 2008

It's to give it an analogue to the real world - a lot of people understand those values, where EV is made up.

Justin Hunt · April 15th, 2008

Also you can really fine tune the exposure where as EV is more robust.

jhv

mattclinch · April 16th, 2008

and if you know the camera setup of a photo you are matching you can quickly match the exposure using the physical sun and sky... from experience its pretty damn good at that.

SandmanNinja · April 16th, 2008

Quote:

Originally Posted by mattclinch

and if you know the camera setup of a photo you are matching you can quickly match the exposure using the physical sun and sky... from experience its pretty damn good at that.

I had never considered that aspect of it, but that's a very good point!

My (tiny) Preview window doesn't seem to work when I switched from Log to Photographic - am I alone?

MasterZap · April 16th, 2008

As said above, it's mostly for familiarity. There is no "functional difference" between tweaking the EV and changing the others.

If you want that, though, you can try this link

/Z

crazy homeless guy · April 16th, 2008

It sounds sexier to mess with the Aperture + Shutter Speed + ISO than the EV. Sex sells.

April 15th, 2008	#1 (permalink)
robkar97 Member Join Date: Sep 2007 Location: Goteborg Posts: 88 Name: Robert Karlsson	Is there any reason to use shutter+aperture+iso? When using mr Photographic Exposure Control, is there any good reason to use Aperture + Shutter Speed + ISO and not just a single EV input!? The manual states that shutter speed has no effect on motion blur, and ISO has no affect on image grain - so why bother fiddling with 3 values when you can do the same (?) with 1? Robert __________________ architect/visualiser i2 STUDIOS, Sweden http://www.i2studios.com

April 15th, 2008	#2 (permalink)
AJLynn Moderator Join Date: Aug 2004 Location: Beantown Age: 29 Posts: 4,426 Name: Andrew Lynn	Re: Is there any reason to use shutter+aperture+iso? It's to give it an analogue to the real world - a lot of people understand those values, where EV is made up.

April 15th, 2008	#3 (permalink)
Justin Hunt Veteran Member Join Date: Jan 2005 Location: Brisbane Age: 33 Posts: 1,361 Name: Justin Hunt	Re: Is there any reason to use shutter+aperture+iso? Also you can really fine tune the exposure where as EV is more robust. jhv

April 16th, 2008	#4 (permalink)
mattclinch Senior Member Join Date: Jun 2007 Location: W. London Age: 25 Posts: 307 Name: Matt Clinch	Re: Is there any reason to use shutter+aperture+iso? and if you know the camera setup of a photo you are matching you can quickly match the exposure using the physical sun and sky... from experience its pretty damn good at that. __________________ Matt Clinch Arch Viz Artist @ Hayes Davidson http://www.hayesdavidson.com

April 16th, 2008	#6 (permalink)
MasterZap Member Join Date: May 2006 Location: Eskilstuna Posts: 70 Name: Håkan Andersson	Re: Is there any reason to use shutter+aperture+iso? As said above, it's mostly for familiarity. There is no "functional difference" between tweaking the EV and changing the others. If you want that, though, you can try this link /Z __________________ mentalraytips.blogspot.com - mr Zap Andersson - a completely mental shader guy

April 16th, 2008	#7 (permalink)
crazy homeless guy Moderator Join Date: Nov 2002 Location: San Francisco Posts: 2,895 Name: travis schmiesing	Re: Is there any reason to use shutter+aperture+iso? It sounds sexier to mess with the Aperture + Shutter Speed + ISO than the EV. Sex sells. __________________ travis schmiesing

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