ex3 video, mixed with beta SX, whats best at DVinfo.net

Ian Planchon · January 7th, 2009, 08:51 PM

is that possible to make them splice together ok? if I downconvert to 4:3 with clip browser as I am transfering the files, is that all I would need to do?

Devin Termini · January 9th, 2009, 06:42 PM

It will work, but it will re-compress the footage to DV.

What system will the footage be edited on?

Ian Planchon · January 9th, 2009, 07:05 PM

vegas 8c. yeah, the video will be DV, but so is the beta sx video I will be working with. I want to use the ex3 for some timelapses and slo mo stuff, but am using SX for the client. and want to make sure its all going to look close enough in the end.

Forest Finbow · January 9th, 2009, 08:14 PM

Well you should keep in mind that SX is actualy 4:2:2 SD so converting the EX3 footage to 4:1:1 DV (with clip browser) is not really the best thing you could do.
4:2:0 HD (aka XDCAM EX) actualy provides you with fairly enough chroma data for a very decent 4:2:2 SD footage, so you might just simply consider using the full resolution EX3 footages rather than first downsampling them to DV, given of course your NLE can handle the full rez footages. If not you could also try to figure a way to convert the 4:2:0 35mbps HD to something like a 50mbps 4:2:2 SD or just uncompressed SD (via sofware or via the SDI input).

That said, I'm not really sure the color sampling will be the most visible difference between both footages. SX camcorders are typicaly based on 2/3" CCD chips with older DSP processings whereas EX camcorders are based on 1/2" CMOS sensors with fairly new tech processings (including hypergamma if selected). Without arguing on pros and cons of both technologies, it might be a tad difficult to adjust them in order to create pictures that actualy match when displayed onscreen. I suggest you run some tests with both cameras to see if the pictures are convincing enough before planning the shooting.

Ian Planchon · January 9th, 2009, 08:20 PM

Quote:

Originally Posted by Forest Finbow

Well you should keep in mind that SX is actualy 4:2:2 SD so converting the EX3 footage to 4:1:1 DV (with clip browser) is not really the best thing you could do.
4:2:0 HD (aka XDCAM EX) actualy provides you with fairly enough chroma data for a very decent 4:2:2 SD footage, so you might just simply consider using the full resolution EX3 footages rather than first downsampling them to DV, given of course your NLE can handle the full rez footages. If not you could also try to figure a way to convert the 4:2:0 35mbps HD to something like a 50mbps 4:2:2 SD or just uncompressed SD (via sofware or via the SDI input).

That said, I'm not really sure the color sampling will be the most visible difference between both footages. SX camcorders are typicaly based on 2/3" CCD chips with older DSP processings whereas EX camcorders are based on 1/2" CMOS sensors with fairly new tech processings (including hypergamma if selected). Without arguing on pros and cons of both technologies, it might be a tad difficult to adjust them in order to create pictures that actualy match when displayed onscreen. I suggest you run some tests with both cameras to see if the pictures are convincing enough before planning the shooting.

so maybe just put both pieces of video on a SD timeline in their native form(with the HD video squeezed or edgecropped) instead of downconverting?

Forest Finbow · January 9th, 2009, 08:45 PM

Obviously edge cropped would be the best option if the final product will be full 4:3. If your NLE handles different resolutions on the same timeline, I guess it should provide you the highest quality possible for an SD output.

Do you actualy have both cameras around ? Have you tried to look at both sources edited together in a sequence ?

Ian Planchon · January 9th, 2009, 10:58 PM

yeah, as far as I know, I should be fine editing with both formats on the same timeline. I THINK.

I wont have both cameras till march, but I will be testing them a lot before the shoot starts to see what I get.

January 7th, 2009, 08:51 PM	#1
Ian Planchon Major Player Join Date: Nov 2007 Location: an Alaskan living in Des Moines, Iowa Posts: 513	ex3 video, mixed with beta SX, whats best is that possible to make them splice together ok? if I downconvert to 4:3 with clip browser as I am transfering the files, is that all I would need to do?

January 9th, 2009, 06:42 PM	#2
Devin Termini Regular Crew Join Date: Sep 2007 Location: Mount Pleasant, MI Posts: 177	It will work, but it will re-compress the footage to DV. What system will the footage be edited on?

January 9th, 2009, 07:05 PM	#3
Ian Planchon Major Player Join Date: Nov 2007 Location: an Alaskan living in Des Moines, Iowa Posts: 513	vegas 8c. yeah, the video will be DV, but so is the beta sx video I will be working with. I want to use the ex3 for some timelapses and slo mo stuff, but am using SX for the client. and want to make sure its all going to look close enough in the end.

January 9th, 2009, 08:14 PM	#4
Forest Finbow New Boot Join Date: Nov 2008 Location: Montpellier, France Posts: 16	Well you should keep in mind that SX is actualy 4:2:2 SD so converting the EX3 footage to 4:1:1 DV (with clip browser) is not really the best thing you could do. 4:2:0 HD (aka XDCAM EX) actualy provides you with fairly enough chroma data for a very decent 4:2:2 SD footage, so you might just simply consider using the full resolution EX3 footages rather than first downsampling them to DV, given of course your NLE can handle the full rez footages. If not you could also try to figure a way to convert the 4:2:0 35mbps HD to something like a 50mbps 4:2:2 SD or just uncompressed SD (via sofware or via the SDI input). That said, I'm not really sure the color sampling will be the most visible difference between both footages. SX camcorders are typicaly based on 2/3" CCD chips with older DSP processings whereas EX camcorders are based on 1/2" CMOS sensors with fairly new tech processings (including hypergamma if selected). Without arguing on pros and cons of both technologies, it might be a tad difficult to adjust them in order to create pictures that actualy match when displayed onscreen. I suggest you run some tests with both cameras to see if the pictures are convincing enough before planning the shooting.

January 9th, 2009, 08:45 PM	#6
Forest Finbow New Boot Join Date: Nov 2008 Location: Montpellier, France Posts: 16	Obviously edge cropped would be the best option if the final product will be full 4:3. If your NLE handles different resolutions on the same timeline, I guess it should provide you the highest quality possible for an SD output. Do you actualy have both cameras around ? Have you tried to look at both sources edited together in a sequence ?

January 9th, 2009, 10:58 PM	#7
Ian Planchon Major Player Join Date: Nov 2007 Location: an Alaskan living in Des Moines, Iowa Posts: 513	yeah, as far as I know, I should be fine editing with both formats on the same timeline. I THINK. I wont have both cameras till march, but I will be testing them a lot before the shoot starts to see what I get.