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Old August 21st, 2011, 01:21 AM   #1
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New 5DmkII anti alias optical filter

I don't know if this was already posted but heres a link to a newly developed optical anti alias filter that is said to control one of the main problems of the canon dslrs.;

VAF-5D2 Optical Anti-Aliasing Filter
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Old August 21st, 2011, 10:17 AM   #2
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Re: New 5DmkII anti alias optical filter

I hadn't seen it before. I'd like to read a user review.

Early on with the 5DII I recall one user trying to set up a conventional anti-alias filter but I don't think he got too far. The Mosaic Engineering web site doesn't explain their technical approach, but the few images they show look promising. This is a major issue with the 5DII, and the filter could be very useful.
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Old August 21st, 2011, 02:45 PM   #3
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Re: New 5DmkII anti alias optical filter

Hmm, promising. I'll be interested to see the uptake on this.
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Old August 21st, 2011, 05:08 PM   #4
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Re: New 5DmkII anti alias optical filter

Philip Bloom blogs about in on his website and he was able to test a prototype and really liked it. I think that they run around $385 or so if I remember correctly. The only downside is that you need to remove it to shoot stills. It also messes up your backfocus and so your lens markings will be off.

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Old August 21st, 2011, 06:24 PM   #5
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Re: New 5DmkII anti alias optical filter

According to the filter maker, you can still get infinity focus. So if we use follow focus or eyeball our focus on monitor or lcd in video then its still ok.
What the tests show is that focus wont hit the numbers and markers on the lens barrel. but we dont use that anyway in video.

Most of us on these forums bought the 5D for video anyway so, even if they disable photo function to get quality video from 5D this is still ok for a lot of us.
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Old August 22nd, 2011, 01:36 AM   #6
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Re: New 5DmkII anti alias optical filter

I wonder if it interferes with adapters for my Nikon lenses ??
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Old August 22nd, 2011, 02:44 AM   #7
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Re: New 5DmkII anti alias optical filter

Something to bear in mind, although many people will already own a 5D, is that buying this filter and a Z finder brings the 5D within approx $1,700 of a Sony FS100. That's still a big difference to some people, but it should be a consideration as you add more accessories to the 5D.
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Old August 22nd, 2011, 06:41 AM   #8
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Re: New 5DmkII anti alias optical filter

My thinking exactly Brian. I love my 5D MkII but at some point you have to do the math and decide what makes more sense. I'm on the fence about adding any more accessories since I use it for both video and photography. Relegating it to photography only and going in a different direction for video will probably make more sense at some point.
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Old August 22nd, 2011, 11:34 AM   #9
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Re: New 5DmkII anti alias optical filter

Do you have to remove it for stills if you use live view mode for stills?
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Old August 22nd, 2011, 01:26 PM   #10
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Re: New 5DmkII anti alias optical filter

The issue with stills is that it will significantly soften them down to where you will get a sharper photo with an iPhone.
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Old August 22nd, 2011, 03:55 PM   #11
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Re: New 5DmkII anti alias optical filter

Yeah, I tend to think this gizmo is just a wee bit too late to market. Between Sony - who's just having an amazing year - and the Mark III (if and when) - I think most pro/high end users of the Mark II will simply upgrade.

Whatever technical negatives there are - softening, lack of stills function, back focus thrown off, unknown effects - using this gizmo would void your warranty (and God help you if you somehow scratch the sensor). Personally, I don't like cramming anything into the middle of my expensive equipment.

Two years ago, this would have been killer. Now, I think it might has some market for all those used Mark IIs that are getting ready to hit the market - but not at $350. $99 sounds about right.
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Old September 4th, 2011, 10:01 PM   #12
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5D Mark II solution for 1080p moiré and aliasing.

Not sure if this has been mentioned before (if so, let me know and I'll merge threads):

VAF-5D2 Optical Anti-Aliasing Filter

-- Optically corrects most aliasing and moiré artifacts in 5D Mark II HD video.
-- No reduction of 5D Mark II 1080p video resolution for most lenses.
-- True optical correction before video image capture – no postproduction software filters or processing.
-- Easily installed or removed in less than 20 seconds.
-- 5Dmk2 H.264 codec compresses with better quality with the VAF-5D2, because false, high-frequency, aliased image components are eliminated before compression.
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Old September 4th, 2011, 10:35 PM   #13
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Re: 5D Mark II solution for 1080p moiré and aliasing.

Posted here Chris:

http://www.dvinfo.net/forum/canon-eo...al-filter.html
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Old September 4th, 2011, 10:43 PM   #14
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Re: New 5DmkII anti alias optical filter

D'oh! I didn't look down the index page far enough. Merged -- thanks,
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Old September 4th, 2011, 11:46 PM   #15
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Re: New 5DmkII anti alias optical filter

The charts posted over at Philip blooms site on the tests he has done with a production version looks promising.

Surprisingly, the filter looks like its able to squueze a little more resolution due to its ability to minimize significantly aliasing and moire.

Click on the charts to get full res.

Moire and Aliasing no more?! A solution for the 5DmkII | Philip Bloom
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