In praise of AA filters

Started 10 months ago | Discussions thread
unknown member
(unknown member)
Like?
Re: ready to see your artifacts?
In reply to rovingtim, 10 months ago

rovingtim wrote:

Basalite wrote:

rovingtim wrote:

So, here we go:

1) purple tree phenomenon

Did you just make that up?

Leaf-less trees are not this colour ... as you can see from the leaf-less trees in the foreground of your own image.

Easily correctable.

The following is a similar problem showing up in a camera with a 'weak' AA compared with a good one. Same lens, same time, same photographer.

http://www.dpreview.com/forums/post/38582026

Notice how the beach has turned 'purple' in the E5 shots (the one with the weak AA)

2) False detail

Notice how the detail on the roof suddenly changes as the angle changes. This is detail being invented out of whole cloth. There are lots of examples of this in your image.

3) Jaggies

LOL. No, those are called pixels. They make up the image. You see pixels on diagonals at high magnification. On a Sigma camera they haven't been blurred away so you see them that much easier and clearer. That's a good thing. If you don't want to see individual pixels then stop viewing images well beyond 100%.

Again, a single example of many.

If you want more fun ... see if you can spot the roof that's changed colour. See if you can find more 'invented' detail can could not possibly be right.

No, that is something that is done by people like you. People that prefer blurry images or that want to justify and defend the blurry images their cameras take.

Of course. Thank you for the education.

You're welcome. 

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 post MMy threads
Color scheme? Blue / Yellow