Manual Zooming on the GY-HM700 at DVinfo.net

Mike Laisney · August 7th, 2009, 12:01 PM

Hi folks

I am glad to be here and from today I can post :-)
I just bought 1 week ago an JVC GY-HM700 and I found than I have a problem with the manual zooming.
When I use manual with my canon XL2, its smoothly and pretty easy but with the JVC I got jerk, it's really not smooth at all, I tried many time different speed but slow it's worth !!!!
Do you know the problem ??

Do you think than I should send back the canon 14X or the Camera or both??

here an example

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Thanks

Mike

Tim Dashwood · August 7th, 2009, 12:39 PM

I'm not exactly sure how to respond to this but I'll take a crack at it.

#1. The Canon XL2 doesn't actually ship with a real manual lens (although Canon does have a couple available.) The XL2 lens zoom ring provides input to servos that then zoom the lens for you with built-in servo-controlled "ease-in and ease-out." It is a quasi manual input for an automatic lens.

#2. In the case of professional lenses "manual zoom" truly is manual. It is as smooth/fast/slow as your hand makes it. If you want to have smoother control then turn on the servo and use the zoom rocker.

Mike Laisney · August 7th, 2009, 12:49 PM

Thanks to reply Tim
I understand that but how can it be so hard do to smoothly zoom ?
I ask some buddies to try it and they can't do slowly and smoothly, because when you turn the zoom ring it's a little more harder to turn when you arrived bettween 15 and 32 .

So you don't have any problem with yours.

My hand is not shacking ;-)

James McBoyle · August 9th, 2009, 10:42 AM

Sorry if this seems a bit obvious, but have you made sure the zoom switch on the bottom of the lens is set to manual? If it's still on auto you're trying to manually zoom against the resistance of the zoom motor, which would make life rather difficult. (coming from full auto with servo ring camera to a fully manual camera has made for a few interesting 'oops' for me so far, this being one)

Have Fun,
Jim

Dennis Robinson · August 9th, 2009, 11:05 PM

Quote:

Originally Posted by Mike Laisney

Hi folks

I am glad to be here and from today I can post :-)
I just bought 1 week ago an JVC GY-HM700 and I found than I have a problem with the manual zooming.
When I use manual with my canon XL2, its smoothly and pretty easy but with the JVC I got jerk, it's really not smooth at all, I tried many time different speed but slow it's worth !!!!
Do you know the problem ??

Do you think than I should send back the canon 14X or the Camera or both??

here an example

RapidShare: 1-CLICK Web hosting - Easy Filehosting

Thanks

Mike

Hi ,
I read your post and tried my camera out. It is the same as your footage but to be honest, in over three years I have never used the manual zoom except on fast zooms. Why would you want to?

Mike Laisney · August 10th, 2009, 03:38 AM

Yes you're right, I am not going to used a lot the manual zoom anyway.
thanks for your reply guys :-)

Last saturday I used the 700 for a wedding, it was great, some green light in some shot (White balance) and the sound is not so good as the XL2.

anybody have some setting for the sound ?

Eric Deyerler · August 10th, 2009, 05:02 AM

Take an external microphone

Donald Smith · August 10th, 2009, 07:15 AM

I just shot a wedding with my HM700 (you'll see a post titled "Low-Light Wedding" elsewhere here). Just go to my newsvideo.com site and you'll see it listed down the left column. I'm very happy with the results. Yes, I had external mics which I turned on at times (one for each channel) and at other times I was shooting off the camera-mounted mic. No "green" even though I shot under the worst of conditions; a mix of daylight and tungsten and darkness.

Paul R Johnson · August 10th, 2009, 10:03 AM

I was a bit shocked by the vertical smear from the highlights - it doesn't handle those very well. I kind of expected this to be better than that. I guess you just have to accept that those types of shots just cannot be done. Other than that, the images even with the internet mangling are fine - sound seems ok too.

Jon Enkel · August 10th, 2009, 10:40 AM

Quote:

Originally Posted by Dennis Robinson

Hi ,
I read your post and tried my camera out. It is the same as your footage but to be honest, in over three years I have never used the manual zoom except on fast zooms. Why would you want to?

er, I use it to get tighter shots of actuality events, thus enabling, hopefuly, the editors to put sequences together easier. Clearly one does not use the zoom it's self!
I am primarily a documentary/news style camera operator.

Mike Laisney · August 10th, 2009, 10:46 AM

here
a small sample of green light

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August 7th, 2009, 12:01 PM	#1
Mike Laisney Regular Crew Join Date: Jul 2009 Location: France (Normandy) Posts: 42	Manual Zooming on the GY-HM700 Hi folks I am glad to be here and from today I can post :-) I just bought 1 week ago an JVC GY-HM700 and I found than I have a problem with the manual zooming. When I use manual with my canon XL2, its smoothly and pretty easy but with the JVC I got jerk, it's really not smooth at all, I tried many time different speed but slow it's worth !!!! Do you know the problem ?? Do you think than I should send back the canon 14X or the Camera or both?? here an example RapidShare: 1-CLICK Web hosting - Easy Filehosting Thanks Mike

August 7th, 2009, 12:39 PM	#2
Tim Dashwood Wrangler Join Date: Aug 2005 Location: Toronto, ON, Canada Posts: 3,637	I'm not exactly sure how to respond to this but I'll take a crack at it. #1. The Canon XL2 doesn't actually ship with a real manual lens (although Canon does have a couple available.) The XL2 lens zoom ring provides input to servos that then zoom the lens for you with built-in servo-controlled "ease-in and ease-out." It is a quasi manual input for an automatic lens. #2. In the case of professional lenses "manual zoom" truly is manual. It is as smooth/fast/slow as your hand makes it. If you want to have smoother control then turn on the servo and use the zoom rocker. __________________ Tim Dashwood

August 7th, 2009, 12:49 PM	#3
Mike Laisney Regular Crew Join Date: Jul 2009 Location: France (Normandy) Posts: 42	Thanks to reply Tim I understand that but how can it be so hard do to smoothly zoom ? I ask some buddies to try it and they can't do slowly and smoothly, because when you turn the zoom ring it's a little more harder to turn when you arrived bettween 15 and 32 . So you don't have any problem with yours. My hand is not shacking ;-)

August 9th, 2009, 10:42 AM	#4
James McBoyle Regular Crew Join Date: Jun 2008 Location: Dublin, Ireland Posts: 87	Sorry if this seems a bit obvious, but have you made sure the zoom switch on the bottom of the lens is set to manual? If it's still on auto you're trying to manually zoom against the resistance of the zoom motor, which would make life rather difficult. (coming from full auto with servo ring camera to a fully manual camera has made for a few interesting 'oops' for me so far, this being one) Have Fun, Jim

August 10th, 2009, 03:38 AM	#6
Mike Laisney Regular Crew Join Date: Jul 2009 Location: France (Normandy) Posts: 42	Yes you're right, I am not going to used a lot the manual zoom anyway. thanks for your reply guys :-) Last saturday I used the 700 for a wedding, it was great, some green light in some shot (White balance) and the sound is not so good as the XL2. anybody have some setting for the sound ?

August 10th, 2009, 05:02 AM	#7
Eric Deyerler Regular Crew Join Date: May 2009 Location: Schwabach (Germany - Bavaria) Posts: 199	Take an external microphone

August 10th, 2009, 07:15 AM	#8
Donald Smith Regular Crew Join Date: May 2009 Location: Dallas, TX Posts: 73	I just shot a wedding with my HM700 (you'll see a post titled "Low-Light Wedding" elsewhere here). Just go to my newsvideo.com site and you'll see it listed down the left column. I'm very happy with the results. Yes, I had external mics which I turned on at times (one for each channel) and at other times I was shooting off the camera-mounted mic. No "green" even though I shot under the worst of conditions; a mix of daylight and tungsten and darkness.

August 10th, 2009, 10:03 AM	#9
Paul R Johnson Inner Circle Join Date: Nov 2005 Location: Lowestoft - UK Posts: 4,015	I was a bit shocked by the vertical smear from the highlights - it doesn't handle those very well. I kind of expected this to be better than that. I guess you just have to accept that those types of shots just cannot be done. Other than that, the images even with the internet mangling are fine - sound seems ok too.

August 10th, 2009, 10:46 AM	#11
Mike Laisney Regular Crew Join Date: Jul 2009 Location: France (Normandy) Posts: 42	here a small sample of green light RapidShare: 1-CLICK Web hosting - Easy Filehosting