need advise
by Luis Moran
on
Jul 17, 2008 at 11:19:14 am
Hi,
And first of all sorry for my english. I am going to explain my doubts the best i can.
Well, i have a JVC GY-HD251and i' going to do some works for broadcast and i have doubts about what is the best workflow. I work with FCP 6.
I have to do a lot of graphics and other elements (3d) and postproduction work so i would like to work in a 4:2:2 environment so i have planned to buy an AJA IO HD and a hdv deck with sdi output to go on Prores hq. I know that when you record to tape the footage goes compressed so my doubt is if i am going to take any advantage following this workfow.
Any advise will be really appreciated.
Thanks in advance
Re: need advise by Michael Palmer on Jul 17, 2008 at 3:09:59 pm
Luis,
You speak english very good and I understand what you are thinking. I think HDV can produce amazing HD video if it is shot properly and with good equipment like what you are using. From what I found looking up your camera is that it offers the HD-SDI connection and you realize that it would be better not to compress to HDV before transcoding to Pro Rez. I'm sure your deck will decompress the HDV and make interpolation decisions filling in color to give you the 4:2:2 you are looking. IMO Long GOP works better shooting motion with lower compression running a higher byte rate. What would be better is to live capture the uncompressed HD-SDI signal but the AJA IO-HD is a bit of a ball and chain. What would be good for you is to have a small HD-SDI field recorder that goes beyond the limits of HDV. I would suggest you look into the Convergent Design Flash XDR and Nano Flash HD_SDI compact flash recorders before you purchase the the AJA box.
http://www.convergent-design.com/ THe XDR and Nano Flash allows you to choose the compression level that works best for you in various levels from below HDV (BlueRay encoding), to any HDV levels, to 50 Mbps 4:2:2 (XD CAM), to 100Mbps 4:2:2 all I-frame, to 160 Mbps 4:2:2 all I-frame that is near uncompressed quality. These recorders will also record QuickTime .mov files so there is no conversion time lost getting the media into Final Cut.And the compact flash cards are very inexpensive and if you need to you can edit directly from the cards. These recorders not only work in the field but will work great in post. Finally someone is producing an affordable product without limits.
AJA makes great products, but I think you will be best served from the JVC camera using XDR or Nano Flash recorders.
Re: Shipping Monday by Michael Palmer on Jul 17, 2008 at 5:36:28 pm
Todd Terry,
I emailed Mike Schell and he said they will start shipping the first units next Monday. He said he is debugging the boards as we speak and it is going well. I'm teaming with Mike using the XDR recorders together with the new EX3 cameras for an Animal Planet show I'm shooting in September. This will be the first HD production to attempt this affordable MPEG-2 workflow all the way though post to final output.
