Smartsharpen question - DPChallenge Forums

Canon EF 100mm f/2.8 USM Macro

09/21/2006 12:35:16 PM · #1

When I use smart sharpen with the motion blur function, it looks like it working in the preview dialogue box, but when I apply the filter, nothing (or very little happens).

Does this happen to anyone?

TechnoShroom

Canon EOS-30D

09/21/2006 12:37:03 PM · #2

Are you looking at the photos in the same view level? The dialogs usually have the view set at 100% If your main view is not set to 100% you may see only slight differences or none at all depending how small the view is.

Canon EF 100mm f/2.8 USM Macro

09/21/2006 09:23:10 PM · #3

I just checked that. That doesn't seem to be the problem. I'm almost certain the preview calibration is off when using motion blur. Any thoughts?

TechnoShroom

Canon EOS-30D

09/21/2006 11:01:05 PM · #4

Just checked this out... wow, completely off. I don't normally use smart sharpen and when I do use tools with previews I generally ignore the preview in the dialog and work from the image itself so I wouldn't really notice slight variations but this is way off.

Louis

Nikon D800

Nikon AF Nikkor 85mm f/1.8D

09/21/2006 11:03:14 PM · #5

Originally posted by bvoi:

I use smart sharpen exclusively (PS CS2), and I've never had a problem. I know it sounds dumb, but you wouldn't happen to be applying the filter on an adjustment layer, would you? :)

09/22/2006 12:53:19 AM · #6

Originally posted by Louis:

Originally posted by bvoi:
When I use smart sharpen with the motion blur function, it looks like it working in the preview dialogue box, but when I apply the filter, nothing (or very little happens).

Does this happen to anyone?

I use smart sharpen exclusively (PS CS2), and I've never had a problem. I know it sounds dumb, but you wouldn't happen to be applying the filter on an adjustment layer, would you? :)

I don't think so. I use apple j, to duplicate the layer and then I open the smart sharp dialogue box and go at it. I also tried applying it to the background layer and the same thing happened. In regards to using the preview box or looking at the original with the preview check box...I do both and they both look good until I apply the filter, then it goes back to normal.

?????what to do????????

Nikon AF-S Zoom-Nikkor 28-70mm f/2.8D IF-ED

09/22/2006 02:28:52 PM · #7

bump
Anyone else with this problem?
Thanks,
bvoi

Nald

Nikon D700

09/22/2006 02:57:55 PM · #8

I use smart sharpen all the time in CS2. I rarely use motion blur when applying this technique. I either use gaussian blur or lens blur with good results.

When you use motion blur you need to apply an angle at which the mask is applied to the photograph. Have you attempted this?

Nikon AF-S DX NIKKOR 18-200mm f/3.5-5.6G ED VR II

09/22/2006 11:59:59 PM · #9

Originally posted by naldslc:

Not sure what you mean by the mask being applied at an angle. Aren't masks just straight over the image. Secondly, I still have a problem when I apply to the background layer.

Would someone try sharpening with lens blur selected and then test a few different angles to see if the preview looks the same as the result?
Thanks

zardoz

Nikon D200

09/23/2006 12:36:55 AM · #10

I just tried it with motion and with lens blur at several angles and the preview matched the result. I could not find any problems.

Canon EF 24-105mm f/4.0L IS

09/23/2006 03:02:16 AM · #11

Oh no. Sounds like I have a problem then.

Artifacts

Canon EOS-5D Mark II

09/23/2006 06:24:29 AM · #12

Originally posted by bvoi:

I know that this sounds like a dumb question, but WHY would you chose to sharpen with 'motion blur'? I always use 'lens blur', even when I have already applied a motion blur filter. (filter->blur->Motion blur) You will find that for CS2 most everyone online recommends using 'lens blur' for best sharpening.

Brad

Olympus OM-D E-M1

Olympus 40-150mm f/2.8 PRO M.Zuiko

09/23/2006 06:28:52 AM · #13

The motion blur smart sharpen works if an image has a very small amount of motion blur in it, and often can help by kinda' taking the image and appearing to paste a layer on top of itself but moved over a pixel or more. If the unintentional motion blur was horizonatal, adjusting the "compass" to match the direction of motion is how it works. Really does help.
Another method I have found to work is to run one light pass horizontally, then followed by another, with the compass direction changed 90 degrees.
Smart sharpen preview window doesn't always really reflect the sharpening at times when clicking on/off preview window to see changes. Probably due to such a small preview window.

Message edited by author 2006-09-23 06:31:29.

Artifacts

Canon EOS-5D Mark II

Canon EF 24-105mm f/4.0L IS

09/23/2006 06:53:10 AM · #14

Originally posted by BradP:

I stand corrected. As always, BradP gives great advice. Even though the smart sharpen window is larger than in previous PS versions there are many factors that conspire to making the preview differ from what you actually get, not the least of which is your screen resolution.