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What's the point of an AA filter (on the a7II) if I get this?
The thing to realize is that the AA filter (or more resolution) help with reducing the chances and severity of moire but ultimately with any bayer array based sensor there's always the chance of both normal interference pattern moire and also the moire caused by the demosaicing from the sensor. I've had both before (bayer pattern moire is much worse btw - think geometric patterns) and ultimately we're just in the business of pushing the effects off to the more and more extreme situations.
Btw, the C1 Pro moire reduction tool works well but ultimately will soften the moire portion of the image. Selective edits and masking are your friend.
Sony try to minimize these in many ways.What's the point of an AA filter (on the a7II) if I get this?
It's Solms I ought to use the Canon 500L instead.3. Use a lens that is not APO and wetzlar.
Sony try to minimize these in many ways.
NEX-5 had an AA filter stack. The shutter was secured by 3 screws. But the shot gun shutter still had an impact on sharpness.
Nex-5N did not have a AA filter stack, the shutter was screwed in by a single solitary screw. (There was No room for the top 2 screws and the slots were left vacant). This is to offset the newly introduced EFCS that minimized the vibrations. The NEX-6 had EFCS and 3 screws. It also had an AA stack (like the NEX-7). All these were engineered with a plastic mount to add a little play so that a lens is not secured too well. These continued on with the A7/7R.
All the loud noises demanding "better" everything led to a metal mount, EFCS, SSS (that increases the thickness of the body, so something jas to be trimmed down to make it compact) and thinner filters with less epoxy.
AFAIK, this is the first demonstration of moire (I saw an example from the A7RII and Otus) with the A7II.
The next iterations will take care of them if there is enough demand for it.
To mitigate this issue at the moment:
1. Turn the SSS off.
2. Turn the EFCS off.
3. Use a lens that is not APO and wetzlar.
If I think of more, I will add them later.
What's the point of an AA filter (on the a7II) if I get this?
Hi,Hi,
The A7rII is prone to moiré. Actually, even the kit 28-70/3.5-5.6 lens is good enough to produce moiré. It is not that bad as I expected, tough. A lot better than my Hasselblad V-series/P45+ combo. Just to say, I discovered moiré on a few of my first dozens of shots. On the other hand I have not seen it on any of a lot of carefully executed shots. It is very subject dependent.
The presence of moiré indicates that the lens outperforms the pixel size. It is as simple as that. The amount of moiré that Doug's lens produces indicates that it is very sharp and that the sharpness is native and not a result of excessive sharpening. I might start saving for one of those lenses…
I don't think sensor size is a problem, the optical package is probably equivalent to about 2 mm on all Sony cameras. Replacing two costly components with a piece of optical glass and getting applause from pixel peepers is incentive enough to leave OLP filtering out.
Best regards
Erik
The A7R probably is better.Using an A7rII rather than an A7II might help somewhat when using an APO-R 280/4. :grin:
Thanks Vivek? Why?The A7R probably is better.
You might have to save for a while. As others have noted I used the Leica 280mm f/4 APO-Telyt-R.Which lens did you use? I may start saving up for it!
Shake = defocus, the trick that Guy posted about but in different directions.Thanks Vivek? Why?
Thanks Vivek.Shake = defocus, the trick that Guy posted about but in different directions.
(What I referred to in my earlier post about NEX and the shot gun shutter)
You might have to save for a while. As others have noted I used the Leica 280mm f/4 APO-Telyt-R.