PIX 2015

Confirmed: No practical advantage to removing D7100 AA filter

Started Apr 25, 2013 | Discussions thread
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What if increased resolution was not the design goal.
In reply to Jared Huntr, Apr 27, 2013

Jared Huntr wrote:

Not that it is surprising, but it seems the cheerleading squad from the Cameralabs D7100 review mega-thread here:

Those cheerleaders can now be added to my 'less credible' folder for future reference.

While it may have been a design goal for the D800e. What if they are just trying to save money and removed the filter. Nikon states with the D4 they were able to reduce aliasing using a thinner OLPF and use processing to remove the rest of the aliasing artifact.

What if it is just a logical progression, they depended on a piece of glass (silica) to remove aliasing  and now they are doing it in software or processing. The processing chip has gotten fast enough that they can add the task for alias removal to the process of producing a jpg image and not slow down FPS, writing to card which would have happened in the past due to limited speed and processing of the chip

Could be a cost saving measure that they may or may not pass on to us. If they do actually remove it one more piece of glass removed from in front of the sensor could be a good thing.

If the anti alias filter is using polarization to do this process, perhaps removing the silica increased the amount of light to the sensor which is sort of suggests in this demontration.


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