[madmanchanNew Member Join Date: Sep 2011 Posts: 7 Offline]

Hi all,

An update: I have now written a free software utility (Mac only) to fix this problem for affected images — that is, images you've already shot which exhibit these artifacts.

Here's some informal documentation (overview, limitations, instructions, examples, etc.):

http://people.csail.mit.edu/ericchan/tmp/FixBadPixels.pdf

And here's the software package, in case you want to give it a try:

http://people.csail.mit.edu/ericchan/tmp/FixBadPixels.zip

Eric

[madmanchanNew Member Join Date: Sep 2011 Posts: 7 Offline]

[madmanchanNew Member Join Date: Sep 2011 Posts: 7 Offline]

Mark Gowin;1684 wrote: Hi Eric,

I had the same problem with my sensor and I pretty much just wrote off those images. Now that I know you have a software tool to correct the image I would like to go back through my affected images to see if if I have any I want to get you to fix for me if you don't mind.

No problem, Mark. Please email me at [email]madmanchan2000@yahoo.com[/email] and we can follow up. (Good thing you saved the files!)

[madmanchanNew Member Join Date: Sep 2011 Posts: 7 Offline]

[madmanchanNew Member Join Date: Sep 2011 Posts: 7 Offline]

Arif, I may also be able to help you regarding your current affected images (i.e., images that you've already shot that show the purple line). I have a software tool which I can use to patch bad (partial) columns/rows in the raw data. Let me know if you're interested.

Eric Chan
Camera Raw Engineer

[madmanchanNew Member Join Date: Sep 2011 Posts: 7 Offline]

[madmanchanNew Member Join Date: Sep 2011 Posts: 7 Offline]

Hi David, I will be at Photo Plus and will likely drop by the S Studio sometime on Thurs afternoon. Hopefully we'll get a chance to catch up.

[madmanchanNew Member Join Date: Sep 2011 Posts: 7 Offline]

[madmanchanNew Member Join Date: Sep 2011 Posts: 7 Offline]

Hi Bobby, I have printed S2 images on an Epson 7900 without seeing the offset/crop issue you describe. I have printed from both Lightroom 3 and CS5 on Mac 10.6.8. So it should be possible … but it seems strange that this problem only occurs with your S files!

Out of curiosity, what is your page size for the S2 image that you're trying to print? In the CS5 “Print” dialog box, do you see the full image previewed within that window?

[madmanchanNew Member Join Date: Sep 2011 Posts: 7 Offline]

[madmanchanNew Member Join Date: Sep 2011 Posts: 7 Offline]

David Farkas;734 wrote: Eric,
I am curious about the relationship between radius and sharpening amount. For high detail scenarios, where you suggest reducing the radius to 0.5 or 0.6 (I use 0.8 by default), would you turn up the sharpening amount as well?

Not necessarily. I think of Amount as a “volume” control and hence it's for seasoning to taste. In contrast, Radius and Detail are more for adapting the type of sharpening to the scene content.

[madmanchanNew Member Join Date: Sep 2011 Posts: 7 Offline]

[madmanchanNew Member Join Date: Sep 2011 Posts: 7 Offline]

You can use high Detail amounts (even 100) with S2 files, but please do so carefully. High Detail means ACR/Lr will do its best to extract every ounce of detail & texture available in the file. This is almost always undesirable for portraits or perhaps even general-purpose use where a smoother result is preferred. But for extremely fine detail (pixel-sized features like blades of grass, twigs, leaves, etc.) and texture + low ISO cases, a high Detail setting can be appropriate and highly effective. For such scenarios I also suggest reducing the Radius setting from its default value of 1, to something like 0.5 or 0.6.

Eric Chan
Camera Raw Engineer

[madmanchanNew Member Join Date: Sep 2011 Posts: 7 Offline]