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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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Daily FTU hints and tips: Image Stabilisation

Posted 6th October 2009 at 04:00 PM by Ian

No.9: Stabilise your photography

An important innovation in recent years is image stabilisation. First developed for video cameras, image stabilisation is now a common feature in all kinds of still cameras. Image stabilisation is designed to minimise the problem of motion blur in an image caused by the movement of the camera. In other words, the system uses gyro sensors to detect movement of the camera and compensates for that movement to prevent blurring of the subject being photographed....
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Daily FTU hints and tips: Olympus Supersonic Wave Drive (SWD) explained

Posted 2nd October 2009 at 03:46 PM by Ian

No.8: What's the fuss about SWD?

SWD stands for SuperSonic Wave Drive. It's Olympus' own technology and is used in three areas across the company's camera body and lens products.

Olympus has developed and patented several technologies that centre around the transmission of mechanical energy through high frequency vibrations. These vibrations are at so-called 'supersonic' frequencies in excess of around 25KHz, and they project wave forms through otherwise solid media,...
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Daily FTU hints and tips: Selective live view AF tips for E-System camera users.

Posted 1st October 2009 at 09:44 PM by Ian

No.7: Live view AF - going beyond the manual/user guide.

Note: This tip is aimed at users of Olympus E-System camera models including the E-420 and E-520 and later models.

The conventional way to move the AF point around the frame in live view mode while using Imager AF (contrast detect AF) is to select one of the 11 AF areas, as below:



...
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Daily FTU hints and tips: Why Four Thirds?

Posted 30th September 2009 at 02:54 PM by Ian

No.6: What makes Four Thirds special?

I'm often asked why I have a special interest in Four Thirds. I must emphasise that my fundamental interest is in taking pictures and photography in general, regardless of brand or system platform. But ever since Olympus introduced the OM system in the mid-1970s, I have marvelled at how Olympus has applied its engineering in a re-inventive way. That philosophy remains as true today as it has been over the last 50 years.

Although...
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Daily FTU Hints and tips: Differences between Panasonic/Leica and Olympus Zuiko lenses.

Posted 29th September 2009 at 11:33 AM by Ian

No.5: A quick look at some detail differences between Panasonic Leica and Olympus Zuiko Digital Four Thirds lenses.

Panasonic Leica lenses for Four Thirds bodies are not very common, but they are highly coveted. Designed and manufactured by Panasonic's own engineers, in Japan, Panasonic's Leica-branded lenses need to meet tight optical quality standards set by Leica in Germany.

Not all Panasonic lenses are branded Leica, indeed only one Micro Four Thirds Panasonic lens...
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Daily FTU hints and tips: Live view autofocus permutations

Posted 24th September 2009 at 03:17 PM by Ian

No.4: What you need to know about live view autofocus and which bodies work best with which lenses.

Live view means being able to see what the lens on the camera sees, viewed either via an external screen, or an eye-level electronic viewfinder. Live view is not, as far as I know, officially part of the Four Thirds standard. Panasonic and Olympus have developed their own solutions, but thankfully they do embrace the issue of compatibility - up to a point.

Olympus got the...
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Daily FTU hints and tips: Panasonic Lumix G-series shutter effect preview

Posted 22nd September 2009 at 11:00 PM by Ian

No.3: Preview the effects of the motion in your scene according to the shutter speed selected.

You are probably aware of a facility that many cameras, that have any serious pretension, offer the user, namely: depth of field preview. You press a button, the lens aperture closes up and you can see how the distance of the sharply focused area is affected. The smaller the aperture, the greater the distance is covered in focus, or the depth of field.

Applying some common...
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Daily FTU hints and tips: Figuring out image file names

Posted 22nd September 2009 at 11:59 AM by Ian

UPDATE: I missed out the fact that the Olympus E-620 and E-P1 models have a new facility to edit the first two characters of the filename for personal customisation (just the second character when shooting in Adobe RGB space).

No.2: Today we look at how Olympus and Panasonic Lumix formulate their image file names and folders on the memory card.

Olympus:

Inside the standard DCIM (Digital Camera IMages) folder, you may find one or more sub-folders which...
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Daily FTU hints and tips: Take care with Auto Gradation mode

Posted 21st September 2009 at 05:43 PM by Ian

No.1: Auto Gradation mode on Olympus E-System models can be useful but use with care, especially if you are shooting RAW.

Welcome to the first in a new daily series of concise hints and tips for Olympus and Panasonic Four Thirds (and Micro Four Thirds) camera users!

Today, I'm looking at the Auto Gradation picture mode that Olympus E-System cameras of recent years have featured. You can see the gradation mode on the camera's LCD screen settings matrix, denoted by an...
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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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