As now we see AA filters being weakened or even "reversed" w/ the 5dSR. Thoughts on eliminating it from a 5dIII?
I can't see moire at 100%. The moire is a problem of the downsampling process for reduced size preview. Nothing an AA filter on the sensor will change.Mt Spokane Photography said:I could use a better AA filter on mine. Imagine this photo with no AA filter. That photo was the one with the least Moire, I finally gave up.
midluk said:I can't see moire at 100%. The moire is a problem of the downsampling process for reduced size preview. Nothing an AA filter on the sensor will change.Mt Spokane Photography said:I could use a better AA filter on mine. Imagine this photo with no AA filter. That photo was the one with the least Moire, I finally gave up.
crashpc said:midluk said:I can't see moire at 100%. The moire is a problem of the downsampling process for reduced size preview. Nothing an AA filter on the sensor will change.Mt Spokane Photography said:I could use a better AA filter on mine. Imagine this photo with no AA filter. That photo was the one with the least Moire, I finally gave up.
Absolutely right. Write "moire" into google, pick images, and scroll trough. You´ll see awesome optical effects on the whole display
But the question still holds. Is it possible to remove AA filter if you are friend with electronics and careful, without any harm or malfunction?
As it has been presented, many cameras use two filters stacked "against" each other. Well, if you remove these, what with empty space...
Zv said:I read something about how the AA filter is set up in the 5DS / R and that the R version actually still has one but they added an extra filter that reverses the effect as this was easier to implement than to change the design and subsequent manufacture of the camera. This leads me to believe you wouldn't be able to simply remove it from the 5DIII without mucking up the optical properties in a negative way. Maybe a solution would be to add something rather than remove it.
I'll try and find that source.
neuroanatomist said:Full removal of the AA filter from a 5DIII is technically not possible. The portions that are in the self-cleaning assembly (one sheet of lithium niobate crystal and a quarter wave plate) can be removed and replaced with clear glass. The second sheet of lithium niobate is bonded to the sensor stuck and cannot be removed.
midluk said:I can't see moire at 100%. The moire is a problem of the downsampling process for reduced size preview. Nothing an AA filter on the sensor will change.
Mt Spokane Photography said:midluk said:I can't see moire at 100%. The moire is a problem of the downsampling process for reduced size preview. Nothing an AA filter on the sensor will change.
Moire is explained by the Nyquist Theorem. Removing the AA filter just means you need to limit high frequencies in a image in a different way.
Digital cameras use a combination of a physical AA filter as well as a digital AA filter. As you get more pixels, the Nyquist frequency rises, so you can use less filtering to get needed detail.
I'm not seeing moire at 100% either.midluk said:....I can't see moire at 100%. The moire is a problem of the downsampling process for reduced size preview......
privatebydesign said:Mt Spokane Photography said:midluk said:I can't see moire at 100%. The moire is a problem of the downsampling process for reduced size preview. Nothing an AA filter on the sensor will change.
Moire is explained by the Nyquist Theorem. Removing the AA filter just means you need to limit high frequencies in a image in a different way.
Digital cameras use a combination of a physical AA filter as well as a digital AA filter. As you get more pixels, the Nyquist frequency rises, so you can use less filtering to get needed detail.
Yes, but that doesn't alter the fact that there is no moire in this image at 100%, therefore it is not sensor/AA filter induced moire. The moire visible in the smaller versions is, as midluk said, produced by the resampling process, not the initial capture.