Sharpness at DVinfo.net

Go Back   DV Info Net > Sony XAVC / XDCAM / NXCAM / AVCHD / HDV / DV Camera Systems > Sony HDV and DV Camera Systems > Sony HVR-Z7 / HVR-S270

Sony HVR-Z7 / HVR-S270
Handheld and shoulder mount versions of this Sony 3-CMOS HDV camcorder.


Reply
 
Thread Tools Search this Thread
Old August 4th, 2008, 10:20 PM   #1
New Boot
 
Join Date: Jul 2006
Location: Cheaspeake, VA
Posts: 12
Sharpness

I have a few questions...is anyone else having a problem with all-around lack of sharpness???
I have only worked with DVCPROHD as a compressed format and i just need to know, is this the best it's gonna be??
Are the progressive speeds sharper than the interlaced?
Any Magical camera profiles out there to help this issue?
Does Sony even acknowledge there is a problem? if there is a problem...
I've seen sharper images but are they cleaned and sharpened in FCP?
sorry for the rant but i'm on the edge here!!!!
thx
joe
Joe Pitts is offline   Reply With Quote
Old August 5th, 2008, 03:26 AM   #2
Regular Crew
 
Join Date: Jun 2008
Location: Nottingham UK
Posts: 37
I've shot DVCprohd stuff on a hvx200, and Sony Z7 footage seems sharper than that? I've got detail down to -7 as well most of the time. Viewing on FCP with Cinema display 23inch. Really sharp stuff seems to produce lots of alias artifacts on a CRT TV. i.e. EX1.

If viewing on a computer: HDV, -6db gain, normal picture profile, Progressive 25p. seems to produce a good picture. Make sure there is no green bar above the footage in FCP, when dropped on timeline.
Jon Oneill is offline   Reply With Quote
Old August 5th, 2008, 03:32 AM   #3
New Boot
 
Join Date: Mar 2007
Location: Eidfjord, Norway
Posts: 17
Hi Joe,

your footage should be tack sharp with standard settings,
maybe your back focus is off, detail settings, (auto)gain above +6?

John
John Bour is offline   Reply With Quote
Old August 15th, 2008, 01:54 PM   #4
Contributor
 
Join Date: Oct 2007
Location: Nottingham, MD
Posts: 66
Joe Pitts,

Set the focus chart that came with your Z7 and tape it to a wall or cabinet. Set your camera on a tripod about 8 feet away. Put up adequate light in area of chart. Hook up Z7 to HD monitor via HDMI connector. Do auto flange adjustment (look on pages 10-11 of your manual). To do this, you must keep focus barrel in the position closest to front of lens and also keep in auto focus.

Keeping lens barrel in front position, change one of your programmable lens buttons to Focus, so you can do foot readings in viewfinder when in manual focus. (This is in the camera menu). Looking carefully at HD monitor, do both auto and manual focus tests on chart, using tight, medium and wide zoom settings. Using auto focus, note feet settings (distance for focus) in your viewfinder at each of your zoom settings. Do this by switching to manual focus via your programmable button, described above. Do this multiple times.

Looking at HD monitor, let us know if your manual focus setting (on tightest zoom) holds true focus when zooming out to widest shot. Or, does auto focus look better? What are your foot readings?
__________________
Stephen Gradin
Dockside Video Productions
Stephen Gradin is offline   Reply With Quote
Old August 15th, 2008, 02:13 PM   #5
Contributor
 
Join Date: Oct 2007
Location: Nottingham, MD
Posts: 66
If anyone else can try above focus tests with their Z7, please do, and report back your findings. Thanks.
__________________
Stephen Gradin
Dockside Video Productions
Stephen Gradin is offline   Reply With Quote
Old August 16th, 2008, 04:06 AM   #6
Inner Circle
 
Join Date: Apr 2006
Location: Wales
Posts: 2,130
Joe what aperture settings are you using? Don't forget that the Z7 has a 1/3" chip so any f stop below about f5.6 will stop to induce diffraction problems and the lens sharpness will decrease rapidly.
Steve
Steve Phillipps is offline   Reply
Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

Professional Video
(800) 833-4801
Portland, OR

B&H Photo Video
(866) 521-7381
New York, NY

Z.G.C.
(973) 335-4460
Mountain Lakes, NJ

Abel Cine Tech
(888) 700-4416
N.Y. NY & L.A. CA

Precision Camera
(800) 677-1023
Austin, TX

DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > Sony XAVC / XDCAM / NXCAM / AVCHD / HDV / DV Camera Systems > Sony HDV and DV Camera Systems > Sony HVR-Z7 / HVR-S270

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 08:02 AM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2017 The Digital Video Information Network