In praise of AA filters

Started Oct 23, 2013 | Discussions thread
Shop cameras & lenses ▾
Tom Axford OP Senior Member • Posts: 2,652
Re: Pro AA filter users forget Sigma's Foveon sensor
1

rovingtim wrote:

Example:

In the middle of this crop, look at how the detail dissolves in patterns that do not exist in the fabric. In other words, the sensor is trying to resolve detail with partial information. The software constructing the missing 'detail' is getting it wrong.

Thanks, I see what you mean. I was thrown by the use of the word 'moire' which I think perhaps should be reserved for the larger-scale patterns produced by aliasing.

These effects seem to be fairly well muted, however. I think Sigma must have taken steps to alleviate the problems or they could be far worse.

 Tom Axford's gear list:Tom Axford's gear list
Panasonic Lumix DMC-GM1 Olympus OM-D E-M10 II
Reply   Reply with quote   Complain
Post (hide subjects) Posted by
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow