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AA filter on Nikon D780?
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Jan 7, 2020 12:03:55   #
User ID
 
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.


You didn't read carefully. Read again "above
the pixel density of 24mp FF".

Pixel density is not sensor size, and neither is
it pixel count. When we say human population
per square mile, it's just a frame of reference.
It tells us how closely packed the people are.

But we could just as well refer to population
per square kilometer or per hectare, yet refer
to the exact same population density despite
different frames of reference.

OTOH, if the number of persons living in one
square mile are transplanted into one square
kilometer, the population density rises.

When you take 24 million pixels that were all
living on a FF sensor and transfer them onto
an APSC sensor, the pixel density rises.


============================


FWIW, optional FYI stuff :-)

24mp FF is 4000x6000 pixels in a 24x36mm
frame. The pixel density is 6000 per 36mm
[linear], or 1000 per 6mm, or 166 pixels per
1mm. What's the pixel density of your D7100 ?

Easy enuf to calculate using the above model.

But without bothering to calculate, we can say
that a D7100 has 24mp stuffed into much less
space than a 24mp FF camera ... so clearly its
pixel density is higher than a 24mp FF camera,
so there'd be no problem eliminating the filter.

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Jan 7, 2020 12:38:54   #
AndyH Loc: Massachusetts and New Hampshire
 
drmike99 wrote:
Understood, but does it have the AA Filter? I had thought it did not.


You are quite correct. The lack of an AA filter was one of the reasons I chose the D7100 in the first place. I have never encountered a moiré problem.

Andy

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Jan 8, 2020 10:57:44   #
Ira
 
Z6 and D750 both have a filter. They are both 24MP full frame cameras like the D780. The D780 looks like it uses the same sensor as the Z6. I would think it has a AA filter.

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Jan 8, 2020 11:38:54   #
camerapapi Loc: Miami, Fl.
 
I can only speak in my behalf when I express my opinions. Having a AA filter to me it is not a deterrent to buy a camera.

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Jan 8, 2020 12:03:44   #
Ira
 
I agree, I have a D750 and it thake beautifully sharp images. I don't think that having a AA makes that much difference.

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Jan 8, 2020 12:22:33   #
henryp Loc: New York, NY
 
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?

The D780 does have an AA filter.

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Jan 8, 2020 12:37:14   #
redlegfrog
 
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?


I'm also waiting for the word from Nikon. Do I have a great reason for not wanting the filter? No!

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Jan 8, 2020 12:42:36   #
Hamltnblue Loc: Springfield PA
 
The 780 is a hybrid based on the Z6, which has the filter.

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Jan 8, 2020 13:22:59   #
dmeyer Loc: Marion, NC
 
henryp wrote:
The D780 does have an AA filter.


Thanks, Henry--I appreciate the definitive answer.

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Jan 8, 2020 13:37:18   #
Murray Loc: New Westminster
 
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.


Correct

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Jan 8, 2020 13:56:47   #
AirWalter Loc: Tipp City, Ohio
 
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 it was me I think I would ask Nikon. CRAP, sorry. I should have read all the replys first.

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Jan 8, 2020 17:30:13   #
smf85 Loc: Freeport, IL
 
Moire in a digital camera is produced when the two pixel transistor wells are intermittently activated by photons hitting between them and falling into both wells. If the wells are small enough, e.g. high enough pixel density, there isn't any between - they all go into only one well so no moire. At which point no filter is needed.

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Jan 8, 2020 23:05:35   #
Ched49 Loc: Pittsburgh, Pa.
 
What I don't understand is why Nikon saw fit to produce the D780 without an on board flash. Fill flash being such an important part of still photography.

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Jan 9, 2020 07:13:39   #
mas24 Loc: Southern CA
 
I met two women photographers, who owned the D750, and both had the expensive Nikon 24-70mm f2.8 lens on them. I knew the D750 had an AA filter, as well as the D800. The D750 Sales, did well, knowing the camera had an AA filter. The D750 was labeled as one of the best cameras for Weddings. AA filter or not? I'm sure the D780, will continue that label.

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Jan 9, 2020 07:58:13   #
Bill_de Loc: US
 
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?


According to this (for what it's worth) the D780 does have an aa filter.

https://www.imaging-resource.com/PRODS/nikon-d780/nikon-d780DAT.HTM
--

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