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So the Olympus OM-D E-M5 sensor isn't a Panasonic, but does it really matter?

Posted 22nd February 2012 at 03:11 PM by Ian


Olympus has found a new source of sensor for the OM-D E-M5

As I revealed on the forum earlier in this week after a tip-off from a highly trusted contact in the camera industry based in Japan, I am completely convinced that the Olympus OM-D E-M5 sensor is not made by Panasonic, so marking an end to the exclusive use of Panasonic sensors in Olympus Four Thirds and Micro Four Thirds cameras since Olympus' last Kodak...
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The new E-M5, GH2, GX1 and G3 and diffraction limits

Posted 9th February 2012 at 08:56 AM by Ian

Over at our sibling site I covered the issue of diffraction limiting digital cameras some time back. If you reduce the aperture setting in your lens beyond a certain point that relates to the pixel pitch of your camera's sensor and your images will get softer because of diffraction.

With 12.3 megapixel Four Thirds and Micro Four Thirds cameras the theoretical diffraction threshold is almost exactly f/8 although in practice I find that f/7.1 is the aperture to aim for. Users of Micro...
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Welcome to blogging on Four Thirds User

Posted 21st September 2009 at 01:00 PM by Ian

From today, any registered forum member on Four Thirds User can start their very own blog, right here.

Blogs and forums
So what is the difference between a blog and the forum? Think of a forum as a place to discuss things. It's a place where many talk to many.

A blog is different. A blog is about you talking to many; the focus is on you and your subject. Although you can respond by commenting on a blog, fundamentally a blog is about you and what you have to say;...
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