AA filter on Nikon D780?
Jan 7, 2020 08:23:55 #
Read all the specs and highlights on the new D780 but could find no mention of whether the Anti-aliasing filter has been removed or minimized. Did I miss it or is Nikon just being coy about providing that information?
Jan 7, 2020 08:52:42 #
dmeyer wrote:
Read all the specs and highlights on the new D780 but could find no mention of whether the Anti-aliasing filter has been removed or minimized. Did I miss it or is Nikon just being coy about providing that information?
If they didn't mention removal, then I would assume it's still there.
Jan 7, 2020 08:57:46 #
mas24
Loc: Southern CA
I wondered about that too. I read an old article, that Nikon was going to abandon the AA filter altogether. It was removed on their D800E model. That camera went over well. If Nikon did not mention the removal of the AA filter. One can only guess? The camera will be available on January 25, 2020.
Jan 7, 2020 09:08:03 #
With Nikon up to 24MP full frame the AA filter has been used. Above 24MP it is not. Seems Nikon feels that above the pixel density of a 24mp FF it is not (effective?)needed to prevent moire'.
Jan 7, 2020 09:24:15 #
Rich1939 wrote:
With Nikon up to 24MP full frame the AA filter has been used. Above 24MP it is not. Seems Nikon feels that above the pixel density of a 24mp FF it is not (effective?)needed to prevent moire'.
Jan 7, 2020 09:24:55 #
Rich1939 wrote:
With Nikon up to 24MP full frame the AA filter has been used. Above 24MP it is not. Seems Nikon feels that above the pixel density of a 24mp FF it is not (effective?)needed to prevent moire'.
I didn’t think FF was a requirement to eliminate the AA filter. My D7100 is a DX and I am pretty sure it has no AA filter.
Jan 7, 2020 09:29:52 #
drmike99 wrote:
I didn’t think FF was a requirement to eliminate the AA filter. My D7100 is a DX and I am pretty sure it has no AA filter.
The DX sensors have a higher pixel density than a FF sensor of the same pixel count.
Jan 7, 2020 10:02:32 #
Rich1939 wrote:
The DX sensors have a higher pixel density than a FF sensor of the same pixel count.
Understood, but does it have the AA Filter? I had thought it did not.
Jan 7, 2020 10:05:11 #
Jan 7, 2020 10:15:25 #
drmike99 wrote:
Understood, but does it have the AA Filter? I had thought it did not.
The D7100's 24 mp sensor has a pixel density equivalent to a FX 36mp sensor and it does not have an AA filter.
I wasn't correct! It seems the D7100 has an even more densely packed sensor than I thought. If you do the math the number of pixels per sq. mm on the D7100 exceeds that of a FX 36mp
Jan 7, 2020 10:42:55 #
jerryc41 wrote:
If they didn't mention removal, then I would assume it's still there.
The only case where we could reasonably say the AA filter was "removed" is in the update from the D800 to the D800E.
You can't remove something unless you put it there in the first place. The D780 may seem like it's an upgrade from the D750 but it's still a new model.
The AA filter either there or it isn't - neither added nor removed. But that's a quibble.
We have gotten mixed messages from Nikon where they tried to explain why the D800 with the filter might be a better choice for most photographers over the D800E without it. Then they released the D810 without it. Does that make the D810 an upgrade from the D800 or the D800E? Go figure.
Jan 7, 2020 10:48:26 #
Jan 7, 2020 10:53:45 #
selmslie wrote:
The only case where we could reasonably say the AA... (show quote)
Nikon said they found that a filter wasn't needed for high density sensors. I think the 'need' with "HD" sensors might have been obviated somewhat by the lack of effectiveness
Jan 7, 2020 11:06:22 #
Rich1939 wrote:
Nikon said they found that a filter wasn't needed for high density sensors. I think the 'need' with "HD" sensors might have been obviated somewhat by the lack of effectiveness
I don't normally photograph fabrics so I have never felt I needed the filter.
I have come across only a single case of moire - a window screen taken with a Fuji X100T (no AA filter). It was hard to correct so I just discarded the image.
Incidentally, 16MP with APS-C is the same pixel density as full frame 36MP.
Jan 7, 2020 11:26:56 #
[quote=selmslie]
Incidentally, 16MP with APS-C is the same pixel density as full frame 36MP
When I decided to do the math the results shocked me! That old (2013) D7100 has a sensor density of a 50MP+ full frame sensor
Incidentally, 16MP with APS-C is the same pixel density as full frame 36MP
When I decided to do the math the results shocked me! That old (2013) D7100 has a sensor density of a 50MP+ full frame sensor
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