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-   JVC GY-HM 800 / 700 / 600 Series Camera Systems (https://www.dvinfo.net/forum/jvc-gy-hm-800-700-600-series-camera-systems/)
-   -   SDHC card - interesting observation (https://www.dvinfo.net/forum/jvc-gy-hm-800-700-600-series-camera-systems/493533-sdhc-card-interesting-observation.html)

Mike Kujbida March 24th, 2011 12:31 PM
SDHC card - interesting observation
 
I was playing with my new HM-750 the other day to see if there were any major differences between it and my HM700 (other than the 720x480 SD mode, there are none).
I plugged in an SDHC card and noticed, to my surprise, that it said I had 160 min. of record time available.
I had just pulled this same card from my 700 where it said I had 115 min.
The card was freshly formatted and the camera setups were identical.
All I can surmise is that the difference is due to the SD record mode even though the cameras were set to MP4 1440x1080 60i.

Joachim Claus March 24th, 2011 02:31 PM
Re: SDHC card - interesting observation
 
Hi Mike,
the answer is simple. You HM750 is set to a different record mode than your HM700. 1440x1080/60i can be set to 35Mbit/s (HQ-mode) and to 25Mbit/s. With 25Mbit/s you will get 160 minutes and with 35Mbit/s you will get 115 minutes.
Joachim

Mike Kujbida March 24th, 2011 04:50 PM
Re: SDHC card - interesting observation
 
Thanks Joachim.
I'm positive that I set both cameras identically but I'll confirm that tomorrow.

Mike Kujbida March 25th, 2011 07:08 AM
Re: SDHC card - interesting observation
 
Thanks again Joachim. Your suggestion was indeed the answer.
I need to spend (a lot) more time reading the manual.


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