Hi,
I'm interested in Photoshop Lightroom 3.
Advertising says it has also lens correction.
Does someone knows more about it?
And, is it only for use with digital cameras or also for work with large format lenses?
Thanks for any answers,
Andi
Hi,
I'm interested in Photoshop Lightroom 3.
Advertising says it has also lens correction.
Does someone knows more about it?
And, is it only for use with digital cameras or also for work with large format lenses?
Thanks for any answers,
Andi
I don't know the answer, but you can download a fully functional 30 day trial at adobe.com
Jon
my black and white photos of the Mendocino Coast: jonshiu.zenfolio.com
What lens problems are you wanting to correct? It is set up with profiles for most modern DSLR lenses and it works very well with those (except....see below). Otherwise you can adjust it manually. BUT it assumes lens issues are symmetrical-with lenses that shift off axis it doesn't work so well because lens problems like barrel distortion CA etc. are only symmetrical when the lens is on axis. So it doesn't work well with Tilt/Shift DSLR lenses when shifted or LF lenses when shifted. If that makes any sense.
Thanks,
Kirk
at age 73:
"The woods are lovely, dark and deep,
But I have promises to keep,
And miles to go before I sleep,
And miles to go before I sleep"
The automated lens corrections work only with digital cameras, chromatic aberration, barrel distortion, vignetting etc. You can apply fixes manually to lenses that are not available automatically, i.e. LF images from a scan.
Its a free trial download.
Thanks Kirk,
here's one photo. I asume it's distortion, it's made with a Nilkkor W 75
and I shifted. I couldn't make it with a longer lens because there were parking cars in front of the Café and I didn't want them in the frame.
With the 47 XL the problem is more obvious, especially when I get closer to the buildings.
OK photo with Nikkor W 75:
Enuma by andi_heuser, on Flickr
Last time I wanted to download a trial version from Adobe (Photoshop Elements)
it was a real hassle and it feeled like driving in a circle
it's pretty subtle but I see a little convergence and a little pincushioning.
Both of these you can correct with the photoshop (not lightroom) lens correction filter, it's definitely in CS3 and above.
Thats when it shows up, wide lenses and close buildings. IMO I'm seeing some off axis barrel distortion (see curvature out at top corners?). An easy fix in PS (not LR). >Select All>Edit>Transform>Warp-drag out center and bottom of sides till it fixes the top curvature. I fix it all the time with DSLR T/S images where there has been a fair amount of rise.
Thanks,
Kirk
at age 73:
"The woods are lovely, dark and deep,
But I have promises to keep,
And miles to go before I sleep,
And miles to go before I sleep"
Kirk, have you tried the lens correction filter? It's pretty sweet.
Yes, it is a great tool, but it too assumes the issues are symmetrical and centered in the image-when you shift a lens the issues are no longer symmetrical and centered. The "center" of the issues shift in the direction of the shift. That is why on a lens that has allot of chromatic aberration and you shift the lens up-you will have more CA at the top of the image.
Last edited by Kirk Gittings; 23-Aug-2011 at 12:58.
Thanks,
Kirk
at age 73:
"The woods are lovely, dark and deep,
But I have promises to keep,
And miles to go before I sleep,
And miles to go before I sleep"
... I never thought a LF lens (with a symmetrical design I assume) would produce barrel distortion! But it obviously does.
Personally I haven't encountered any barrel distortion on my 90 Grandagon-N
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