300 or 600 DPI?

Shaun Roemich · July 14th, 2010, 11:15 AM

Quote:

Originally Posted by Robert Turchick

Here's your test.... in Photoshop make two pics 1920x1080 as the document size and set one to 150 and the other to 72. Pull them into FCP and you will see what the original context of this thread is about.

Did just that. They look exactly the same in FCP. I know that PS used to handle DPI flat wrong when it came to video (v. 5.5 if memory serves) and it may still allow you to mess things up yourself by resizing photo components incorrectly but if your workflow is solid, there are no issues with dpi in PS going to FCP anymore.

And I remember exactly what you are talking about. I just haven't seen the issue since v5 of PS. (I'm running CS3 right now)

Paul Shapiro · July 14th, 2010, 11:27 AM

Quote:

Originally Posted by Robert Turchick

Since you're taking it from a magazine, make sure to run the denoise type filters (I think it's despeckle) you have available in PS or similar to get rid of the inkjet dots before you bring them in to FCP.

Actually, you need to use the descreen filters in your scanning software while capturing the image (experiment with the amount used), otherwise you'll find horrible moire patterns caused by the printed dots. You'll find it much easier than trying to remove the patterns in Photoshop. If at all possible, you'll be much better off scanning from originals.

And you have permission to use this pre-published material, of course?

Oliver Darden · July 22nd, 2010, 12:01 PM

The images I will be using are either from a magazine or original 4 x 6 pictures taken with a 35mm camera. I am also receiving some negatives.

I don't think my scanning software has any kind of "descreen filters", I will have to check.

YES I have permission! lol.

Chris Korrow · July 22nd, 2010, 05:57 PM

If your scanning 4x6 and want to zoom in FC, scan at 600dpi. If you don't have a descreen filter and you are having a moire problem in FC, you can try in PS to add a gaussian blur and then unsharp mask to sharpen it back up. Can't really give specifics as every pic is different, A lot of times I'l blow them up to double the size & then blur. sharpen & then resize down again, Works more often than not. On some occasions, I'll blow it up x2-x3 and then apply the dry brush filter, very large files with a dry brush applied, ends up looking like a picture, but the dry brush kinda scrambles the pixels & color just a bit.

I've just finished a project with thousands of 15 mp stills and my 2.93 quad handles it very well, even with 3-5 layers.

July 22nd, 2010, 05:57 PM	#19
Chris Korrow Major Player Join Date: Aug 2002 Location: Whidbey Is, WA Posts: 326	If your scanning 4x6 and want to zoom in FC, scan at 600dpi. If you don't have a descreen filter and you are having a moire problem in FC, you can try in PS to add a gaussian blur and then unsharp mask to sharpen it back up. Can't really give specifics as every pic is different, A lot of times I'l blow them up to double the size & then blur. sharpen & then resize down again, Works more often than not. On some occasions, I'll blow it up x2-x3 and then apply the dry brush filter, very large files with a dry brush applied, ends up looking like a picture, but the dry brush kinda scrambles the pixels & color just a bit. I've just finished a project with thousands of 15 mp stills and my 2.93 quad handles it very well, even with 3-5 layers. __________________ www.breathedeepproductions.com

July 22nd, 2010, 12:01 PM	#18
Oliver Darden Major Player Join Date: Feb 2007 Location: USA Posts: 522	The images I will be using are either from a magazine or original 4 x 6 pictures taken with a 35mm camera. I am also receiving some negatives. I don't think my scanning software has any kind of "descreen filters", I will have to check. YES I have permission! lol.