inaccurate 16:9 frame on HD1 LCD Screen? at DVinfo.net

Graham Jones · November 2nd, 2004, 03:33 AM

Hi everybody,

I have a JVC GR-PD1 which is similar to the HD1 except that it's not HD.

After completing a shoot in Tokyo last week, watching footage in the KDDI editing software... I have learnt that the 16:9 image on the LCD screen is inaccurate, in terms of framing. The actual frame is larger than that represented on the LCD screen when shooting. When I look at my shots, there's an extra bit on the left and right! I don't know if the image in the viewfinder lied in this way, as I rarely looked through it.

Has anybody else experienced this problem? Is there a simple way to fix it? Is it possible that at anothe juncture in the editing process the image will 'jump back' to that ratio portrayed whilst shooting?

I imagine I will simply have to mask when doing my final cut - but would appreciate hearing other opinions.

Thanks very much.

Graham Jones · November 4th, 2004, 05:32 PM

guess it's just the PD1

Boyd Ostroff · November 4th, 2004, 05:59 PM

All of the prosumer cameras have LCD's and viewfinders that overscan. This goes for the VX-2100, PD-170, PDX-10, XL-1, GL-2, XL-2, etc.

Unfortunately it's just something you have to be aware of and allow some breathing room such that unwanted objects don't appear in the final frame. If viewing on a regular TV this shouldn't be a problem because they also overscan. The only way around this is to use a pro monitor or a laptop that shows the full frame when you shoot.

At one time or another I'll bet that we've all been "bitten" by this. I know I have...

Steve Crisdale · November 5th, 2004, 01:27 AM

<<<-- Originally posted by Graham Jones Senior : guess it's just the PD1 -->>>

I left replying to this one alone.....initially. I don't have a JVC PD1 PAL 'Extended' definition camcorder, and as the HD10u I do own doesn't exhibit this particular behaviour I couldn't really comment.

The HD10 is pretty much WYSIWYG on the LCD....so perhaps it is just a case of the same pixel count LCD not being 'set' to fully resample the lower resolution PAL signal. But that's just a guess..........

Graham Jones · November 5th, 2004, 02:34 AM

Thanks Boyd and Steve.

To be honest, I'd wager the HD1 and HD10 overscan to the same extent.

I wouldn't have even noticed it on 95% of the shots. Just the 5% with very tight framing. It's an overscan of about 2 - 3%.

Oh well. Now I know..

November 2nd, 2004, 03:33 AM	#1
Graham Jones Major Player Join Date: Jan 2004 Location: Europe Posts: 489	inaccurate 16:9 frame on HD1 LCD Screen? Hi everybody, I have a JVC GR-PD1 which is similar to the HD1 except that it's not HD. After completing a shoot in Tokyo last week, watching footage in the KDDI editing software... I have learnt that the 16:9 image on the LCD screen is inaccurate, in terms of framing. The actual frame is larger than that represented on the LCD screen when shooting. When I look at my shots, there's an extra bit on the left and right! I don't know if the image in the viewfinder lied in this way, as I rarely looked through it. Has anybody else experienced this problem? Is there a simple way to fix it? Is it possible that at anothe juncture in the editing process the image will 'jump back' to that ratio portrayed whilst shooting? I imagine I will simply have to mask when doing my final cut - but would appreciate hearing other opinions. Thanks very much. __________________ www.irishfilmmaker.com

November 4th, 2004, 05:32 PM	#2
Graham Jones Major Player Join Date: Jan 2004 Location: Europe Posts: 489	guess it's just the PD1 __________________ www.irishfilmmaker.com

November 5th, 2004, 02:34 AM	#5
Graham Jones Major Player Join Date: Jan 2004 Location: Europe Posts: 489	Thanks Boyd and Steve. To be honest, I'd wager the HD1 and HD10 overscan to the same extent. I wouldn't have even noticed it on 95% of the shots. Just the 5% with very tight framing. It's an overscan of about 2 - 3%. Oh well. Now I know.. __________________ www.irishfilmmaker.com

November 4th, 2004, 05:59 PM	#3
Boyd Ostroff Wrangler Join Date: Dec 2002 Location: Mays Landing, NJ Posts: 11,787	All of the prosumer cameras have LCD's and viewfinders that overscan. This goes for the VX-2100, PD-170, PDX-10, XL-1, GL-2, XL-2, etc. Unfortunately it's just something you have to be aware of and allow some breathing room such that unwanted objects don't appear in the final frame. If viewing on a regular TV this shouldn't be a problem because they also overscan. The only way around this is to use a pro monitor or a laptop that shows the full frame when you shoot. At one time or another I'll bet that we've all been "bitten" by this. I know I have...

November 5th, 2004, 01:27 AM	#4
Steve Crisdale Major Player Join Date: Jan 2004 Location: Katoomba NSW Australia Posts: 635	<<<-- Originally posted by Graham Jones Senior : guess it's just the PD1 -->>> I left replying to this one alone.....initially. I don't have a JVC PD1 PAL 'Extended' definition camcorder, and as the HD10u I do own doesn't exhibit this particular behaviour I couldn't really comment. The HD10 is pretty much WYSIWYG on the LCD....so perhaps it is just a case of the same pixel count LCD not being 'set' to fully resample the lower resolution PAL signal. But that's just a guess..........