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My issues with the JVC GY-HMZ1U

post #1 of 3
Thread Starter 
I have owned the HMZ1U for several months now. I have used it in all conditions, but just can't seem to get a solid image out of it. I have tried manual as well as full auto. I am starting to think that there is something wrong with the camera. I ride in a Mardi Gras parade (Thoth) each year and usually bring a camera to two to play with during our stops. I decided to give the JVC another shot. I have linked a clip that I split and these are the settings I used:

Manual
Scene Select Off
Focus Auto
Brightness Adjust Auto
Shutter Speed Auto
Aperture Priority Manual
White Balance Auto
Backlight Comp Off
Zebra 70-80%
Cinema Off
Touch Priority AE/AF Off
DIS +1
Gain Up Off
Wind Cut Off
Grid Off
Time Lapse Off
System Select 24p
User Button Setting controlled Aperture
3D Sound On
Mic Level On
Mic Level Setting 0


With these settings the camera should autofocus and allow me to adjust the Aperture by using the User button. I had it set to 5.6 most of the time, which is as high as it would go. After converting the footage, it just doesn't look that sharp. Am I doing something wrong here? Is this camera defective? I can understand getting the grainy look when shooting low light, but this was outside. I have uploaded one of the files for you to look at and give me your thoughts.

www.dylefilms.com/Files/MardiGras.mp4

I would appreciate any help/suggestions that you can offer.

Thank you,

Chad Dyle
Dyle Films - Wedding/Event Videography
__________________
www.chaddyle.com
www.chaddyleproductions.com
post #2 of 3
Quote:
Originally Posted by chaddyle View Post

I have owned the HMZ1U for several months now. I have used it in all conditions, but just can't seem to get a solid image out of it. I have tried manual as well as full auto. I am starting to think that there is something wrong with the camera. I ride in a Mardi Gras parade (Thoth) each year and usually bring a camera to two to play with during our stops. I decided to give the JVC another shot. I have linked a clip that I split and these are the settings I used:

Manual
Scene Select Off
Focus Auto
Brightness Adjust Auto
Shutter Speed Auto
Aperture Priority Manual
White Balance Auto
Backlight Comp Off
Zebra 70-80%
Cinema Off
Touch Priority AE/AF Off
DIS +1
Gain Up Off
Wind Cut Off
Grid Off
Time Lapse Off
System Select 24p
User Button Setting controlled Aperture
3D Sound On
Mic Level On
Mic Level Setting 0


With these settings the camera should autofocus and allow me to adjust the Aperture by using the User button. I had it set to 5.6 most of the time, which is as high as it would go. After converting the footage, it just doesn't look that sharp. Am I doing something wrong here? Is this camera defective? I can understand getting the grainy look when shooting low light, but this was outside. I have uploaded one of the files for you to look at and give me your thoughts.

www.dylefilms.com/Files/MardiGras.mp4

I would appreciate any help/suggestions that you can offer.

Thank you,

Chad Dyle
Dyle Films - Wedding/Event Videography
__________________
www.chaddyle.com
www.chaddyleproductions.com

I don't have the camera.

The clip is 2D at 22mbps. You mentioned conversion. There is a chance that noise (grain) is added in a conversion process. Does the original have the same grain?

Generally, not specific to the model in question, when the aperture is over-ridden to a smaller aperture (higher F numbers), the depth of field of focus increases, while the reduced light to the imager chips can cause the camera to automatically increase the gain, which could lead to more noise in the image.
post #3 of 3
Thread Starter 
Richard,

The Gain has always been turned off (only options are on/off/auto slow shutter). The only conversion is when I split the clips from 3D, but I don't think it does anything to them other than make a L/R version, but I could be wrong.
I had the zebras turned on and had to push the camera to 5.6 (as high as it would go) in order to not completely blow the image out. There was that much light and no reason for the noise. Hopefully I will hear something from JVC soon. Thanks for the input!
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