POLL: aa, or not to aa (5ds vs. 5dsr) ?

[torger]

Here's an example of false colors in an irregular landscape subject, the magenta and cyan pixels are not there in reality:

http://www.ludd.ltu.se/~torger/photography/img/ltr-colormoire.jpg

this requires the lens to be very sharp of course, and results vary depending on demosaicers. In general the demosiacers producing the finest details get more problems with false colors. Lightroom makes more false colors than Phase One's Capture One for example.

Water is another landscape classic where moire/false colors can show:

http://echophoto.dnsalias.net/ekr/Articles/Aliasing2/seawater_a.png

So there's more than fabrics.

When you shoot winter subjects it can be visible around sharp edges, thin tree branches on a white background for example.

The examples I've seen from the D800E when it doesn't produce any aliasing always show a pretty soft lens or much stopped down...

 

[Marsu42]

Here's an example of false colors in an irregular landscape subject, the magenta and cyan pixels are not there in reality

Riiiiiight... I guess you really have to look for this, other than moiré on the infamous cloth everybody knows from tv. Probably for many people, a softer lens (esp. on high-res 50mp) will indeed work as an aa filter substitute, giving enough blur to hide this issue. But if the Canon 5ds-r performs as your samples, it'd be a reason for me not to get it.

 

[rs]

Here's an example of false colors in an irregular landscape subject, the magenta and cyan pixels are not there in reality

Riiiiiight... I guess you really have to look for this, other than moiré on the infamous cloth everybody knows from tv. Probably for many people, a softer lens (esp. on high-res 50mp) will indeed work as an aa filter substitute, giving enough blur to hide this issue. But if the Canon 5ds-r performs as your samples, it'd be a reason for me not to get it.

This is a very divisive subject.

If a system comprising of a 5Ds R, lens, and user/conditions all combine to produce images sharp enough to reveal the extra 'detail' that would be missing with an AA equipped sensor, moire can be a very real issue. This will only bother people who are irked by the difference between real detail and false detail. And if it's next to impossible or even impossible to excite moire with this system due to ultimate sharpness being unobtainable for one reason or another, what possible advantage does removing the AA filter give anyone?

 

[RLPhoto]

With my MF system, I've seen enough moire to want an AA filter in my 35mm system. I'd want the AA filter as 50mp would be give plenty of resolution anyway.

 

[StudentOfLight]

With my MF system, I've seen enough moire to want an AA filter in my 35mm system. I'd want the AA filter as 50mp would be give plenty of resolution anyway.

Out of interest, what is the pixel pitch on the MF system? If for instance you were to take the same picture from the same spot with smaller pixels wouldn't the moire be eliminated?

 

[jdramirez]

You know what's funny... Is this entire time I didn't give a Damn that there was an as filter over my mkiii's sensor. I'm guessing I wouldn't notice... in the grand scheme of things... if I'm happy with the performance the mkiii, I'd be happy with either of the refreshers.

 

[crashpc]

The problem is, that I get AA artifact on Canon AA-filter-equipped body anyway. That way I rather get AA-filter-less body, and get rid of AA different way, and when I need sharpness, I get it. Now I can´t get it...

 

[RLPhoto]

With my MF system, I've seen enough moire to want an AA filter in my 35mm system. I'd want the AA filter as 50mp would be give plenty of resolution anyway.

Out of interest, what is the pixel pitch on the MF system? If for instance you were to take the same picture from the same spot with smaller pixels wouldn't the moire be eliminated?

I have no idea. It's a 1.1x 645 crop sensor with 39 megapixels. Maybe someone can do the calculation.

I've seen moire in my 5D3 files occasionally! It's usually a tight pattern on a suit is when I saw it. My Hassy will show it occasionally with a suit, or anything woven super tight and small. Usually you can correct it by standing a little forward or back but sometimes it's just a pain.