Comparing resolution between low and high strength anti-aliasing (E-5 vs E-30)

[Ian]

Originally Posted by joachim

My understanding was that is an ACR (Adobe Camera Raw) issue. ACR to my info ACR is used by all Adobe products (Photoshop, Lightroom, Photoshop elements) for raw conversion.

I have neither of the cameras in question and am presently not using Adobe raw converters (used them in the past) - so I have no clue whether the issue with the E-620 and E-30 got ever fixed.

I understand from discussions I followed on other web-sites that Capture One is one of or the best regarding sharpness. Some time ago I had a Capture One license and it was amasing what detail this pulled from E-300 files. Since moving into the Mac environment I am using Aperture. Mostly for its colours.

No doubt that there used to be problems with Adobe Camera RAW /Lightroom and some Olympus RAW camera formats - the E-400 for example. often resulted in what looked like micro fractures in the fine detail of an image.

But we're now on the 7th generation of Adobe Camera RAW. I haven't noticed any problems with Adobe's RAW conversions for a long time.

Ian

[whatapicture]

I certainly have never tested an E-520 [I don't have one] against my 620 or 510, but if what you say is true of the 450, I might just look for a used one.

[Ian]

On the plus side, the E-450 has the same improved TruePic III+ image processor as the E-30 and E-620 that solved the problem of high ISO dark area banding in the E520/420 and earlier. DxOMark measurements show it has about half an EV greater dynamic range than the E-510.

On the other hand the E-450 has no in-body image stabilisation. Although an E-450 is likely to be cheaper second hand, the bargain model in my view is the E-620 - not much larger, 12MP (but basically the same ISO noise and dynamic range), IS, articulating screen, bigger viewfinder and 7 AF points instead of 3, and these AF points work to 1EV less light.

Ian

[hruissen]

Maybe a silly question but is it possible to influence (switch off) the anti-aliasing filter in the E-30 or is it an in-built feature.

regards

henk

[hschnee]

The anti-aliasing filter is a hardware element--a material that sits in front of (i.e. attached to) the sensor. So there is no way to turn it off.

- Hal -

[whatapicture]

I knew some body who said they had removed or disconnected the AA filter on a 510, but I have no idea how that would be done if at all true. I think it would involve some in depth knowledge of the inner workings of the camera.

[hschnee]

Originally Posted by whatapicture

I knew some body who said they had removed or disconnected the AA filter on a 510, but I have no idea how that would be done if at all true. I think it would involve some in depth knowledge of the inner workings of the camera.

It is possible, but it's a delicate surgical procedure. A bit of searching found a company that offers the service: http://www.maxmax.com/IRCameraConversions.htm

- Hal -

[whatapicture]

Thanks Hal

It would be interesting to compare pictures with the AA filter and after it had been removed on a E-510 or any camera for that matter.