Questions about XDCAM-HD

Alf Salva · May 22nd, 2008, 04:35 PM

It is clear what is the F-350, by the CA, I have also Canon KH20, and is a perspective of very poor quality with a lot of vertical and lateral chromatic aberration, for the price we pay, Canon could have worked more on design This optical, truth, I'm going to watch a Fujinon, worth paying more,
This lens is the price of a Ex1, and seeing these images we can see the quality of Ex1, I raised also sell the camera for the optical problem, but the fact that record in SD convinces me not to.
A greeting

Eugene Kosarovich · May 22nd, 2008, 06:18 PM

Well... One good thing I can say about my Canon KH 20x6.4... It actually has a lot less CA than when I put my old Canon 18x SD lens on the F335.

But it is impressive how good the EX1 lens apparently is, especially for the price... Or are they doing some kind of electronic CA supression in the EX1?

And back to that other question someone posted, does the aliasing go away when shooting in interlaced? I hadn't actually noticed any in my own shooting, which is mainly 60i.

Oh, and thanks for these great comparison images, Alister.

Paul Gale · May 23rd, 2008, 01:22 AM

My Fuji lens has a lot of CA too - much more noticeable than my old 2/3" DVCAM SD Fuji lens.

Emanuel Altenburger · May 23rd, 2008, 04:56 AM

I´m pretty sure that I read in an article that the EX1 has some sort of "CA compensation" integrated. However this doesn´t work while you are zooming. That´s why pictures didn´t show much CA when still, but as soon as you started zooming you got CA all over the place.

Greg Boston · May 23rd, 2008, 09:27 AM

Quote:

Originally Posted by Eugene Kosarovich

Or are they doing some kind of electronic CA supression in the EX1?

The short answer is yes. It's also easier to implement because the lens is permanently attached.

-gb-

Alister Chapman · May 23rd, 2008, 01:19 PM

There is CA correction in in the EX1 and I believe it will be programmable on the Ex3 depending on the lens used. I think some of the F350 CA is generated in the prism as it doesn't matter what lens you use there is always some CA.

I did the same test shot in interlace and the Aliasing is just the same.

Tom Roper · May 23rd, 2008, 07:55 PM

Thanks Alister. Off topic, but you would have been busy here yesterday, an EF3-4 wedge tornado a mile wide cut a 35 mile swath of destruction, taking life and property over a wide area in a rural area about 50 miles north of Denver.

Greg Boston · May 23rd, 2008, 09:38 PM

Quote:

Originally Posted by Tom Roper

Thanks Alister. Off topic, but you would have been busy here yesterday, an EF3-4 wedge tornado a mile wide cut a 35 mile swath of destruction, taking life and property over a wide area in a rural area about 50 miles north of Denver.

Seems tonight is pretty active as well in the midwest. Overall, it seems to have been a very active severe weather season so far.

Ok, sorry... back to XDCAM HD.

-gb-

Alister Chapman · May 24th, 2008, 09:03 AM

Bad Day yesterday, 63 tornado reports, mainly Kansas but no reports of any fatalities. Really wanted to make the trip over but was committed to several XDCAM shoots. Am heading back out to chase some time around June 1st for a week.

May 22nd, 2008, 06:18 PM	#17
Eugene Kosarovich Taken away too young... rest in peace Eugene Join Date: Mar 2008 Location: Albany, NY Posts: 161	Well... One good thing I can say about my Canon KH 20x6.4... It actually has a lot less CA than when I put my old Canon 18x SD lens on the F335. But it is impressive how good the EX1 lens apparently is, especially for the price... Or are they doing some kind of electronic CA supression in the EX1? And back to that other question someone posted, does the aliasing go away when shooting in interlaced? I hadn't actually noticed any in my own shooting, which is mainly 60i. Oh, and thanks for these great comparison images, Alister. __________________ Scorpio Productions PDW-F335, PDW-U1, Vegas Pro 9.0b

May 23rd, 2008, 01:19 PM	#21
Alister Chapman Inner Circle Join Date: Dec 2005 Location: Bracknell, Berkshire, UK Posts: 4,957	There is CA correction in in the EX1 and I believe it will be programmable on the Ex3 depending on the lens used. I think some of the F350 CA is generated in the prism as it doesn't matter what lens you use there is always some CA. I did the same test shot in interlace and the Aliasing is just the same. __________________ Alister Chapman, Film-Maker/Stormchaser http://www.xdcam-user.com/alisters-blog/ My XDCAM site and blog. http://www.hurricane-rig.com

May 24th, 2008, 09:03 AM	#24
Alister Chapman Inner Circle Join Date: Dec 2005 Location: Bracknell, Berkshire, UK Posts: 4,957	Bad Day yesterday, 63 tornado reports, mainly Kansas but no reports of any fatalities. Really wanted to make the trip over but was committed to several XDCAM shoots. Am heading back out to chase some time around June 1st for a week. __________________ Alister Chapman, Film-Maker/Stormchaser http://www.xdcam-user.com/alisters-blog/ My XDCAM site and blog. http://www.hurricane-rig.com

May 22nd, 2008, 04:35 PM	#16
Alf Salva New Boot Join Date: Jun 2007 Location: Spain Posts: 12	It is clear what is the F-350, by the CA, I have also Canon KH20, and is a perspective of very poor quality with a lot of vertical and lateral chromatic aberration, for the price we pay, Canon could have worked more on design This optical, truth, I'm going to watch a Fujinon, worth paying more, This lens is the price of a Ex1, and seeing these images we can see the quality of Ex1, I raised also sell the camera for the optical problem, but the fact that record in SD convinces me not to. A greeting

May 23rd, 2008, 01:22 AM	#18
Paul Gale Major Player Join Date: Feb 2004 Location: Oxfordshire, UK Posts: 425	My Fuji lens has a lot of CA too - much more noticeable than my old 2/3" DVCAM SD Fuji lens.

May 23rd, 2008, 04:56 AM	#19
Emanuel Altenburger Regular Crew Join Date: Nov 2006 Location: Innsbruck, Austria Posts: 134	I´m pretty sure that I read in an article that the EX1 has some sort of "CA compensation" integrated. However this doesn´t work while you are zooming. That´s why pictures didn´t show much CA when still, but as soon as you started zooming you got CA all over the place.

May 23rd, 2008, 07:55 PM	#22
Tom Roper Trustee Join Date: Jun 2004 Location: Denver, Colorado Posts: 1,891	Thanks Alister. Off topic, but you would have been busy here yesterday, an EF3-4 wedge tornado a mile wide cut a 35 mile swath of destruction, taking life and property over a wide area in a rural area about 50 miles north of Denver.