Steve'sDigicams

bugshutter · Jan 30, 2005, 7:52 PM

If a camera only has a iso 1600 capability, how do you push it up to 3200?

Wildman · Jan 30, 2005, 8:35 PM

Which camera?

bugshutter · Jan 30, 2005, 9:58 PM

Wildman,

Nikon D-70

José A. · Jan 30, 2005, 10:17 PM

bugshutter wrote:

Quote:

If a camera only has a iso 1600 capability, how do you push it up to 3200?

Can you? How? Why?
:?::?::?:

(Does it work with Panasonic Lumix DMC-FZ10):-)

BillDrew · Jan 31, 2005, 9:55 AM

Use levels to expand the histogram. Since that increases the noise, almost certainly find the noise level to high to use the image for anything but very small prints and/or small web images.

marokero · Jan 31, 2005, 11:14 AM

Just shoot however you want under ISO 1600. Take the image into a photo editor like Photoshop and duplicate the background layer and use the duplicate in "screen mode". Everything will get lighter. If it's still not light enough you can stack layers, making copies of the first duplicate. There are more nuances in doing this, but that's the gist of it.

DBB · Jan 31, 2005, 12:12 PM

The best way to do this is to shoot in RAW. RAW gives you two extra stops in either direction. The noise may or may not be objectionable. Certainly pushing it one stop will not significantly increase noise, although at 1600 you have inherent noise anyway.

This is MUCH better than editing later in Photoshop where you are not actually adding an F stop, merely chanbging the existing levels.

Dave

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Jan 30, 2005, 7:52 PM	#1
bugshutter Senior Member Join Date: Jan 2005 Posts: 106	If a camera only has a iso 1600 capability, how do you push it up to 3200?

Jan 30, 2005, 8:35 PM	#2
Wildman Senior Member Join Date: Oct 2002 Posts: 544	Which camera?

Jan 30, 2005, 9:58 PM	#3
bugshutter Senior Member Join Date: Jan 2005 Posts: 106	Wildman, Nikon D-70

Jan 31, 2005, 9:55 AM	#5
BillDrew Senior Member Join Date: Jun 2002 Location: Hay River Township, WI Posts: 2,512	Use levels to expand the histogram. Since that increases the noise, almost certainly find the noise level to high to use the image for anything but very small prints and/or small web images.

Jan 31, 2005, 11:14 AM	#6
marokero Senior Member Join Date: Jun 2002 Posts: 769	Just shoot however you want under ISO 1600. Take the image into a photo editor like Photoshop and duplicate the background layer and use the duplicate in "screen mode". Everything will get lighter. If it's still not light enough you can stack layers, making copies of the first duplicate. There are more nuances in doing this, but that's the gist of it.

Jan 31, 2005, 12:12 PM	#7
DBB Senior Member Join Date: Jan 2004 Posts: 2,483	The best way to do this is to shoot in RAW. RAW gives you two extra stops in either direction. The noise may or may not be objectionable. Certainly pushing it one stop will not significantly increase noise, although at 1600 you have inherent noise anyway. This is MUCH better than editing later in Photoshop where you are not actually adding an F stop, merely chanbging the existing levels. Dave