Nanoflash and HDV cameras at DVinfo.net

Robert Rogoz · November 20th, 2009, 12:51 AM

Can I record signal (HDMI or HD-SDI) from HDV camera (like JVC GY-HD 110)? Thanks

Dave Chalmers · November 20th, 2009, 04:48 PM

Hi there - if the camera in question has an HD-SDI output then yes you can record, but bear in mind that a lot of older HDV cameras do not have full resolution sensors, but match the sensor size to the 'thin raster' HDV 1440x1080 size, so you won't get full HD resolution recording on the NanoFlash, even though it's capable of that.

Regards

Dave C

Dan Keaton · November 20th, 2009, 05:08 PM

Dear Friends,

While many HDV cameras do use 1440 x 1080 sensors, some use full 1920 x 1080 sensor.

In either case, the camera converts the signal to full 1920 x 1080 before sending it out the HD-SDI or HDMI output.

This is very significant, since the nanoFlash will always record full 1920 x 1080 (for 1080 modes), which is much easier to edit than the 1440 x 1080 (thin raster) which has to be converted to 1920 x 1080, a time-consuming task since it is performed in software and not hardware.

Examples of cameras that are HDV with 1920 x 1080 sensors are the Canon HV20/30/40 line.

Aaron Newsome · November 20th, 2009, 07:56 PM

110 does not have SDI out.

Perrone Ford · November 20th, 2009, 08:29 PM

Quote:

Originally Posted by Dan Keaton

Examples of cameras that are HDV with 1920 x 1080 sensors are the Canon HV20/30/40 line.

Mmmmm, $3k recorder on an $800 camera....

Gints Klimanis · November 21st, 2009, 01:49 AM

Yeah, funny combination of high end and seemingly low-end gear. Though, I can't name any full raster 1920x1080 cameras for ~$4k that can record at 200 MBps. Do the Canons output 4:2:0 only via the HDMI? I'm looking for a good 1080p "crash cam" to combine with the Nanoflash.

Dan Keaton · November 21st, 2009, 07:54 AM

Daar Gints,

The Canon HV20, HV30, and HV30 produce excellent full 1920 x 1080 images via the HDMI output. These cameras have full 1920 x 1080 sensors and output full 1920 x 1080 images via the HDMI output.

If you have adequate light, then one could easily purchase one of these cameras, then connect to the nanoFlash located in a protective container via the HDMI cable.

If you need a very low-light crash camera, then these would not be your best choice.

I can attest that the HDMI output of these cameras is high quality. The output is much, much better than 4:2:0.

Of course, more expensive, more professional cameras have better controls and options.

The Canon HFs10 and HFs11 are also well respected.

Gints Klimanis · November 21st, 2009, 01:25 PM

Thanks, Dan. HV30 appears to have been superceded by the HV40. Do the HV30/40 actually output 1920x1080p30 over HDMI or is it 1920x1080i or rectangular pixel 1440x1080i? The HV40 spec sheet lists 1920 x 1080i, 1440 x 1080 (60/24/30 fps) recording modes. It's the 1440 number that stops me as it reminds me of the now-obsolete Sony Z1 recording modes.

I should probably research these on my own, but I'd like to know if you've verified any of the small cameras spitting full 1920x1080 raster over HDMI to Nanoflash/XDR and which ones, like the HV30 you mentioned, appear better than 4:2:0 .

Dan Keaton · November 21st, 2009, 02:00 PM

Dear Gints,

HDV (Specifically Canon's flavor called HDV-2), when recorded to tape is always 1440 x 1080.

Canon DV20/30/40's have 1920 x 1080 sensors and go direct to the HDMI output as 1920 x 1080 without first being converted to 1440 x 1080.

These cameras make great images when used with our nanoFlash.

November 20th, 2009, 12:51 AM	#1
Robert Rogoz Major Player Join Date: Sep 2007 Location: Bellingham, WA Posts: 457	Nanoflash and HDV cameras Can I record signal (HDMI or HD-SDI) from HDV camera (like JVC GY-HD 110)? Thanks

November 20th, 2009, 04:48 PM	#2
Dave Chalmers Regular Crew Join Date: Sep 2009 Location: GLASGOW, UK Posts: 71	HDV cameras Hi there - if the camera in question has an HD-SDI output then yes you can record, but bear in mind that a lot of older HDV cameras do not have full resolution sensors, but match the sensor size to the 'thin raster' HDV 1440x1080 size, so you won't get full HD resolution recording on the NanoFlash, even though it's capable of that. Regards Dave C

November 20th, 2009, 05:08 PM	#3
Dan Keaton Inner Circle Join Date: Dec 2002 Location: Augusta Georgia Posts: 5,421	Dear Friends, While many HDV cameras do use 1440 x 1080 sensors, some use full 1920 x 1080 sensor. In either case, the camera converts the signal to full 1920 x 1080 before sending it out the HD-SDI or HDMI output. This is very significant, since the nanoFlash will always record full 1920 x 1080 (for 1080 modes), which is much easier to edit than the 1440 x 1080 (thin raster) which has to be converted to 1920 x 1080, a time-consuming task since it is performed in software and not hardware. Examples of cameras that are HDV with 1920 x 1080 sensors are the Canon HV20/30/40 line. __________________ Dan Keaton Augusta Georgia

November 21st, 2009, 07:54 AM	#7
Dan Keaton Inner Circle Join Date: Dec 2002 Location: Augusta Georgia Posts: 5,421	Daar Gints, The Canon HV20, HV30, and HV30 produce excellent full 1920 x 1080 images via the HDMI output. These cameras have full 1920 x 1080 sensors and output full 1920 x 1080 images via the HDMI output. If you have adequate light, then one could easily purchase one of these cameras, then connect to the nanoFlash located in a protective container via the HDMI cable. If you need a very low-light crash camera, then these would not be your best choice. I can attest that the HDMI output of these cameras is high quality. The output is much, much better than 4:2:0. Of course, more expensive, more professional cameras have better controls and options. The Canon HFs10 and HFs11 are also well respected. __________________ Dan Keaton Augusta Georgia

November 21st, 2009, 02:00 PM	#9
Dan Keaton Inner Circle Join Date: Dec 2002 Location: Augusta Georgia Posts: 5,421	Dear Gints, HDV (Specifically Canon's flavor called HDV-2), when recorded to tape is always 1440 x 1080. Canon DV20/30/40's have 1920 x 1080 sensors and go direct to the HDMI output as 1920 x 1080 without first being converted to 1440 x 1080. These cameras make great images when used with our nanoFlash. __________________ Dan Keaton Augusta Georgia

November 20th, 2009, 07:56 PM	#4
Aaron Newsome Major Player Join Date: Jul 2009 Location: Rancho Santa Margarita Posts: 590	110 does not have SDI out.

November 21st, 2009, 01:49 AM	#6
Gints Klimanis Inner Circle Join Date: Jun 2003 Location: San Jose, CA Posts: 2,222	Yeah, funny combination of high end and seemingly low-end gear. Though, I can't name any full raster 1920x1080 cameras for ~$4k that can record at 200 MBps. Do the Canons output 4:2:0 only via the HDMI? I'm looking for a good 1080p "crash cam" to combine with the Nanoflash.

November 21st, 2009, 01:25 PM	#8
Gints Klimanis Inner Circle Join Date: Jun 2003 Location: San Jose, CA Posts: 2,222	Thanks, Dan. HV30 appears to have been superceded by the HV40. Do the HV30/40 actually output 1920x1080p30 over HDMI or is it 1920x1080i or rectangular pixel 1440x1080i? The HV40 spec sheet lists 1920 x 1080i, 1440 x 1080 (60/24/30 fps) recording modes. It's the 1440 number that stops me as it reminds me of the now-obsolete Sony Z1 recording modes. I should probably research these on my own, but I'd like to know if you've verified any of the small cameras spitting full 1920x1080 raster over HDMI to Nanoflash/XDR and which ones, like the HV30 you mentioned, appear better than 4:2:0 .