New 5DmkII anti alias optical filter at DVinfo.net

Ted Ramasola · August 21st, 2011, 12:21 AM

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

Charles W. Hull · August 21st, 2011, 09:17 AM

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.

Steve Nelson · August 21st, 2011, 01:45 PM

Hmm, promising. I'll be interested to see the uptake on this.

Daniel Weber · August 21st, 2011, 04:08 PM

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.

Daniel Weber

Ted Ramasola · August 21st, 2011, 05:24 PM

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.

Chris Barcellos · August 22nd, 2011, 12:36 AM

I wonder if it interferes with adapters for my Nikon lenses ??

Brian Drysdale · August 22nd, 2011, 01:44 AM

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.

Steve Nelson · August 22nd, 2011, 05:41 AM

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.

Bill Pryor · August 22nd, 2011, 10:34 AM

Do you have to remove it for stills if you use live view mode for stills?

Chris Medico · August 22nd, 2011, 12:26 PM

The issue with stills is that it will significantly soften them down to where you will get a sharper photo with an iPhone.

John Vincent · August 22nd, 2011, 02:55 PM

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.

Chris Hurd · September 4th, 2011, 09:01 PM

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.

Chris Barcellos · September 4th, 2011, 09:35 PM

Posted here Chris:

http://www.dvinfo.net/forum/canon-eo...al-filter.html

Chris Hurd · September 4th, 2011, 09:43 PM

D'oh! I didn't look down the index page far enough. Merged -- thanks,

Ted Ramasola · September 4th, 2011, 10:46 PM

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

August 21st, 2011, 12:21 AM	#1
Ted Ramasola Trustee Join Date: May 2005 Location: Allen, Texas U.S.A Posts: 1,117	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 __________________ Ted Ramasola http://ramasolaproductions.com

August 21st, 2011, 09:17 AM	#2
Charles W. Hull Major Player Join Date: Dec 2008 Location: Canyon Country, CA Posts: 445	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.

August 21st, 2011, 01:45 PM	#3
Steve Nelson Regular Crew Join Date: May 2009 Location: Monument, CO Posts: 109	Re: New 5DmkII anti alias optical filter Hmm, promising. I'll be interested to see the uptake on this.

August 21st, 2011, 04:08 PM	#4
Daniel Weber Major Player Join Date: Mar 2005 Location: Maryland, USA Posts: 696	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. Daniel Weber

August 21st, 2011, 05:24 PM	#5
Ted Ramasola Trustee Join Date: May 2005 Location: Allen, Texas U.S.A Posts: 1,117	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. __________________ Ted Ramasola http://ramasolaproductions.com

August 22nd, 2011, 12:36 AM	#6
Chris Barcellos Inner Circle Join Date: Nov 2005 Location: Elk Grove CA Posts: 6,838	Re: New 5DmkII anti alias optical filter I wonder if it interferes with adapters for my Nikon lenses ?? __________________ Chris J. Barcellos

August 22nd, 2011, 01:44 AM	#7
Brian Drysdale Inner Circle Join Date: Feb 2006 Location: Belfast, UK Posts: 6,152	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.

August 22nd, 2011, 05:41 AM	#8
Steve Nelson Regular Crew Join Date: May 2009 Location: Monument, CO Posts: 109	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.

August 22nd, 2011, 10:34 AM	#9
Bill Pryor Contributor Join Date: Jan 2003 Location: Kansas City, MO Posts: 4,449	Re: New 5DmkII anti alias optical filter Do you have to remove it for stills if you use live view mode for stills?

August 22nd, 2011, 12:26 PM	#10
Chris Medico Inner Circle Join Date: Aug 2006 Location: Efland NC, USA Posts: 2,322	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. __________________ http://www.LandYachtMedia.com

August 22nd, 2011, 02:55 PM	#11
John Vincent Trustee Join Date: Sep 2005 Posts: 1,065	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.

September 4th, 2011, 09:01 PM	#12
Chris Hurd Obstreperous Rex Join Date: Jan 2001 Location: San Marcos, TX Posts: 27,368 Images: 513	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. __________________ CH Search DV Info Net \| 20 years of DVi \| ...Tuesday is Soylent Green Day!

September 4th, 2011, 09:35 PM	#13
Chris Barcellos Inner Circle Join Date: Nov 2005 Location: Elk Grove CA Posts: 6,838	Re: 5D Mark II solution for 1080p moiré and aliasing. Posted here Chris: http://www.dvinfo.net/forum/canon-eo...al-filter.html __________________ Chris J. Barcellos

September 4th, 2011, 09:43 PM	#14
Chris Hurd Obstreperous Rex Join Date: Jan 2001 Location: San Marcos, TX Posts: 27,368 Images: 513	Re: New 5DmkII anti alias optical filter D'oh! I didn't look down the index page far enough. Merged -- thanks, __________________ CH Search DV Info Net \| 20 years of DVi \| ...Tuesday is Soylent Green Day!

September 4th, 2011, 10:46 PM	#15
Ted Ramasola Trustee Join Date: May 2005 Location: Allen, Texas U.S.A Posts: 1,117	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 __________________ Ted Ramasola http://ramasolaproductions.com