17x Compared to 16x Lens at DVinfo.net
DV Info Net

Go Back   DV Info Net > JVC ProHD & MPEG2 Camera Systems > JVC GY-HD Series Camera Systems

JVC GY-HD Series Camera Systems
GY-HD 100 & 200 series ProHD HDV camcorders & decks.

Reply
 
Thread Tools Search this Thread
Old August 12th, 2009, 08:30 AM   #1
New Boot
 
Join Date: Apr 2008
Location: Hollywood
Posts: 11
17x Compared to 16x Lens

How does the 17x compare to the 16x lens? Can you get a more narrow dof?
__________________
Thanks,
Gary R. www.sharpcut.com
Gary Robinson is offline   Reply With Quote
Old August 12th, 2009, 09:13 AM   #2
Inner Circle
 
Join Date: Sep 2002
Location: Vancouver, British Columbia (formerly Winnipeg, Manitoba) Canada
Posts: 4,088
Less chromatic aberration (CA), 10% wider field of view at full wide angle, SLIGHTLY shorter maximum telephoto range (mitigated by a more useable zoom range due to CA ).

Depth of field is a function of focal length, focal distance, aperture and imager size so the 17x lens has ZERO difference on depth of field (UNLESS you consider that it is more useable at several lens settings that may help to control DOF - full telephoto wide open is more useable in terms of CA on the 17x than the 16x)

But without factoring QUALITY of image into the equation, the 17x won't give you any shallower depth of field than the 16x.
__________________
Shaun C. Roemich Road Dog Media - Vancouver, BC - Videographer - Webcaster
www.roaddogmedia.ca Blog: http://roaddogmedia.wordpress.com/
Shaun Roemich is offline   Reply With Quote
Old August 13th, 2009, 02:33 PM   #3
Regular Crew
 
Join Date: Oct 2005
Location: Manchester England
Posts: 40
After 3 1/2 years with the 16x I just bought a 17x for my HD100
- it's just a better lens, sharper, with better contrast and less flarey. Also a teeny bit wider, like taking one step backwards so that's helpful too. Switching modes HD looks noticeably more "HD" than before and SD, which most of my work is - looks better too but the difference in detail is greater in HD.

As far as depth of field is concerned that is determined solely by the combination of focal length and aperture, so no real change there - all lenses in this focal range will produce similar results.

I think it really should have been the standard lens for these cameras - but the 16x allowed JVC to provide an on the shoulder manual lens camera for around the price of a upper end all-in-one camcorder. I imagine using the 17x as standard would have blown the price-point, kinda like the 100's coming with the silly little battery rather than the V-mount or Anton adapter as standard.

addition - oh yes, less CA and vertical shading too

Last edited by Les Howarth; August 13th, 2009 at 03:29 PM. Reason: addition
Les Howarth 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...

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

Scan Computers Int. Ltd.
+44 0871-472-4747
Bolton, Lancashire UK


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 > JVC ProHD & MPEG2 Camera Systems > JVC GY-HD Series Camera Systems

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



All times are GMT -6. The time now is 06:51 PM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2024 The Digital Video Information Network