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Old Feb 14, 2012, 10:34 AM   #1
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Default Looking for help with an Olympus lens: ZUIKO DIGITAL 11 - 22mm f/2,8 - 3,5

Hi friends!

I hope that someone in this - Oh, so knowlegable Olympus-community would be able to help me with information on this lens and its apparent CA-problems. I postet my cry for help in the Panasonic-community first, as I am looking for an update for this lens'es FirmWare - to a Panasonic LUMIX GH2-camera.

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Would you, all-knowing Olympus-people, please take a look into this my question please, in this other forum? http://forums.steves-digicams.com/pa...-oly-lens.html

Anybody out there (sounds like Pink Flloyd-title...) with some knowledge or experience with this - Olympus ZUIKO DIGITAL 11 - 22mm f/2,8 - 3,5 lens, and its behaviour?

Thanks folks!
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Old Feb 14, 2012, 6:32 PM   #2
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Used on bodies it was designed to be used with, that's one of the better lenses you can buy for an Olympus DSLR, but it can suffer from high amount of chromatic aberrations. Always has.

http://www.lenstip.com/215.5-Lens_re...berration.html

http://www.fourthirdsphoto.com/showthread.php?t=18448

Update for the lenses firmware? This is one of the older Four-Thirds Zuikos that's still available new. I wouldn't be expecting any further development, at least not from Olympus, in terms of any type performance, including CA. It's always been there. You just have to work through it if you want to use it on your GH2.
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Old Feb 15, 2012, 7:26 AM   #3
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Thank you for your info, Greg. Appreciate the time spent here.
So I did not do good enough groundwork in finding out about this CA-problem beforehand. Well thats life for you then. It's just so unexpected for me, since I have never been exposed to such levels of CA ever, being formost a Nikon / Panasonic-man.


When I mentioned an update for the lenses firmware, I only ment (basic) FIRMWARE as such. There is non around. Did't expect an update (its an old design) but some kind of firmware only, that would tell my GH2 what to excpect with this lens. Surely there must be a firmware around somewhere. If you for instance buy this lens new and put it on your old E3 or E5, surely there must be a firmware to install to tell those cameras what to do with this lens?

Or am I totally mistaken her?

BTW - does anybody have any idea of how to "clean" a picture of this purple / green CA. I only have Ps Elements 9 so far. Is there a function or filter for this?


Thanks guys!

Last edited by Walter_S; Feb 15, 2012 at 7:32 AM.
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Old Feb 15, 2012, 8:15 AM   #4
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Might want to read through here.

http://cs5.org/?p=1075

It appears that Photoshop CS and Lightroom 3 have lens correction software. Photoshop elements has some but I have not found any for CA in my Elements 10.
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Old Feb 15, 2012, 11:50 AM   #5
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Yes, Photoshop definitely has correction tools to remove CA under the lens correction tab in Adobe Camera RAW, both an "all edges" option in addition to specific color correction options if the all edges option does not completely remove it.
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Old Feb 16, 2012, 12:25 PM   #6
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Thank you both, James and Greg, for you comments and your help in finding info for me. Unfortunately I am shooting JPEG only, so cannot use Adobe Camera Raw to "clean" CA.

Best regards,
Walter
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Old Feb 16, 2012, 12:29 PM   #7
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You might be able to. From Adobe Bridge, you can open JPEG files in ACR by right-clicking on a JPEG file and choosing "Open in ACR".
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Old Feb 17, 2012, 11:42 AM   #8
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Thanks Greg - I'll investigate this possibility.



It's a pity really, as I like the build-quality and the physical feel of this lens. Here are some test shots - who in his right mind would shoot an orchid with a widangle-zoom. But this flower was just handy.

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ISO 160 (base ISO?) - 1/60" - f/5,0 - 22mm


The yellow "stuff" is dry snow drizzeling off the tree tops.
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ISO 200 - 1/15" - f/8,0 - 11mm




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ISO 200 - 1/100" - f/8,0 - 22mm



But then...
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CA strikes. This is a 100% crop of a handheld shot (blurred) but the CA is quite visible.
ISO 160 - 1/160" - f/8,0 - 11mm
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Old Feb 17, 2012, 11:43 AM   #9
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Quote:
Originally Posted by Walter_S View Post
The yellow "stuff" is dry snow drizzeling off the tree tops.
Yeah, right!
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Old Feb 17, 2012, 11:46 AM   #10
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Quote:
Originally Posted by Greg Chappell View Post
Yeah, right!
Maybe sunlight drizzling through the trees.
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