Cross-Hatching: Foveon vs. Bayer

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xpatUSA Forum Pro • Posts: 15,547
Cross-Hatching: Foveon vs. Bayer

I've been interested in looking at "detail" over the past week or so. Of course, that involves some serious peeping!

But first a little Humble Pie ... in the past, I've been less than complimentary about the Quattro's rendition of detail, mainly as regards cross-hatching ... an apparent lack of gradation in the horizontal and vertical directions. However, it appears that Merrills are not immune to exactly the same thing:

Quattro v Merrill

Only the micro-contrast tells us which is which, eh?

Here's another comparison which adds a low-res Merrill and a DP2 shot:

It's not an effect that I like. Some might say "serves you right for peeping".

It's a bit like my Ferrari paintwork analogy - there might be a virtually invisible scratch but you can bet that the Owner knows it's there ...

Did I mention Bayer? Here's the Merrill versus my GH1 with a Carl Zeiss Jena legacy lens on it:

Please view original size.

I declare that the m4/3 camera with old glass is the Winner, in context.

This Foveon cross-hatching has nothing to do with post-processing - top layer exports are just the same. I believe that what we are seeing is ALIASING caused by a) the lack of a blur filter and b) absence of CFA de-mosaicing.

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 xpatUSA's gear list:xpatUSA's gear list
Sigma DP2 Sigma DP2 Merrill Panasonic Lumix DMC-LX7 Panasonic Lumix DMC-G1 Sigma SD15 +17 more
Panasonic Lumix DMC-GH1 Sigma DP2
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