Wide angel lens and dropping audio? at DVinfo.net
DV Info Net

Go Back   DV Info Net > JVC ProHD & MPEG2 Camera Systems > JVC GY-HD Series Camera Systems
Register FAQ Today's Posts Buyer's Guides

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

Reply
 
Thread Tools Search this Thread
Old January 16th, 2011, 10:35 AM   #1
Regular Crew
 
Join Date: Oct 2008
Location: England
Posts: 116
Wide angle lens and dropping audio?

Hi

I've noticed there's a wide angel lens on ebay for the jvc gyhd 110. Has anyone had any experiences of this lens, it seems quite cheap (60 dollars) or 30 UK price.

I've imported some footage on to my editing computer via mini dv camcorder (used as a deck) I've found some of my footage has had drop out on the audio. Anyone possiblity got any ideas of what this could be, I've been through my manual a couple of times and had no joy

Thanks
Andy

Last edited by Andrew Carter; January 16th, 2011 at 12:18 PM.
Andrew Carter is offline   Reply With Quote
Old January 16th, 2011, 12:03 PM   #2
Inner Circle
 
Join Date: Mar 2003
Location: Billericay, England UK
Posts: 4,711
Twenty quid can buy you a very good wide-angle - the 0.6x Raynox clip-on single element. I know - I've tested it. But you give no clues as to the maker's name, the power of the lens, if it's a zoom through, if it's coated and so on, so thirty quid means nothing to me.

Andrew - if you play the same tape back on another deck/camera, is the audio ok? Do the dropouts always occur in the same place however many times you capture the footage? Are your spinning heads dirty? Was the tape recorded in LP - maybe on a different machine?

tom.
Tom Hardwick is offline   Reply With Quote
Old January 16th, 2011, 12:16 PM   #3
Regular Crew
 
Join Date: Oct 2008
Location: England
Posts: 116
Hi Tom,

I'll have to check the camera and tapes tomorrow. All I know, it is a brand new tape. The heads were cleaned on both deck and camera, but i'll have to check the other details.

The wide angle

72mm 0.45X WIDE ANGLE LENS

Professional 0.45x Super Wide Angle Lens (RETAIL PRICE - $299.99)

0.45X Professional Deluxe High Definition Super Wide Angle Lens

Professional High Definition: PHD Lens reduces glass flare & ghosting caused by reflections

Special Element Frame: Special matte aluminum satin finish frame reduces reflections & optimized photography

Premium Rimmed Glass: High quality rimmed glass reduces light reflection around lens edge

Infrared Compatible: For high resolution day & night recording

82mm Front Threads For Filter

Includes macro

AF / Infrared Compatible

High Definition Lens

Lens is High Quality Crystal Optics

Lens is Multi-Coated

Auto Focus

Fully Automatic

Great for Every Type of Photographic Situation

Japan Optics

Ebay
Item number: 360314007164
Andrew Carter is offline   Reply With Quote
Old January 16th, 2011, 12:18 PM   #4
Regular Crew
 
Join Date: Oct 2008
Location: England
Posts: 116
Quote:
Originally Posted by Tom Hardwick View Post
Twenty quid can buy you a very good wide-angle - the 0.6x Raynox clip-on single element. I know - I've tested it. But you give no clues as to the maker's name, the power of the lens, if it's a zoom through, if it's coated and so on, so thirty quid means nothing to me.

Andrew - if you play the same tape back on another deck/camera, is the audio ok? Do the dropouts always occur in the same place however many times you capture the footage? Are your spinning heads dirty? Was the tape recorded in LP - maybe on a different machine?

tom.
Hi

Forgot to ask, do you use an adapter to attach to your camera. Or does the wide lens attach to the stand camera lens?

Thanks
Andrew Carter is offline   Reply With Quote
Old January 16th, 2011, 01:02 PM   #5
Inner Circle
 
Join Date: Mar 2003
Location: Billericay, England UK
Posts: 4,711
Andy - it's what I call a cheerful cheepie, and if you're not too fussed over picture quality and distortion, then it might be ok for occasional use. But hey - you've got a mighty fine camera and you plan to attach a mighty unfine lens - why?

First off the spec is full of synthetic technical mumbo-jumbo and there's even a line that says in big bold type GUARANTEED NOT TO DISTORT THE PICTURE. Well I can tell you for free that the lens will barrel distort everything, all the time - in fact their demo picture shows this quite plainly.

The lens has two elements and unscrews to leave a powerful positive dioptre lens (about +10) that you can use for powerful closeups - with very wooshy edges, regardless of aperture. Again, it's a fun thing, no more, no less.

It has a 72mm attachment thread and this will screw directly to your JVC. Sensibly it has an 82mm hood thread at the front. It will dramatically increase your field of view, but you'll bend horizons, door frames, telegraph poles, tables, windows and yes - people. You'll be able to use most of your zoom range I suspect - but you won't want to what with the quality hit. I've seen lenses like this before, and only the front of the front element is coated - all the other surfaces are uncoated to save money.

Ball back in your court.

tom.
Tom Hardwick is offline   Reply With Quote
Old January 16th, 2011, 02:45 PM   #6
Regular Crew
 
Join Date: Oct 2008
Location: England
Posts: 116
Hi Tom,

I noticed the distortion was quite bad, thats why I havent bought it.

Thank you for your comments, I think i'll give it a miss.

regards
andy
Andrew Carter is offline   Reply With Quote
Old January 16th, 2011, 05:31 PM   #7
Regular Crew
 
Join Date: Oct 2005
Location: Manchester England
Posts: 40
The filter thread on the Fujinon lenses for the GY-HD cameras is a "standard" 82mm. Both my original 16x kit lens and a 17x which I upgraded to testify to this.

Although the 16x has a recessed front element which is considerably smaller the screw in on the shroud is still 82mm.

The adapter is for 72mm diameter lenses and itself has a filter size of 82mm at the front.
Les Howarth is offline   Reply With Quote
Old January 17th, 2011, 04:09 AM   #8
 
Join Date: Dec 2010
Location: Western Australia
Posts: 576
I wonder how this lens would fair on an Fx1?
Lee Mullen is offline   Reply With Quote
Old January 17th, 2011, 08:14 AM   #9
Inner Circle
 
Join Date: Nov 2005
Location: Lowestoft - UK
Posts: 4,045
My experience is that these kind of things are not too bad at wide, but lose quality badly as soon as you zoom, and also although mine is a different filter size, on the lenses widest setting, the vignetting at the edges is pretty severe - the corners starting to reveal a circular image in the middle - like the lens hood intruding, but it's not!
Paul R Johnson is offline   Reply With Quote
Old January 17th, 2011, 09:52 AM   #10
Inner Circle
 
Join Date: Mar 2003
Location: Billericay, England UK
Posts: 4,711
Ah - Les points out your JVC's filter thread is 82mm and this wide-angle has a 72mm attachment thread. That sure sounds like a no-no to me (though this doesn't always apply) and as Paul says, max wide will undoubtedly vignette the corners of your frame.

tom.
Tom Hardwick is offline   Reply With Quote
Old January 17th, 2011, 01:56 PM   #11
Regular Crew
 
Join Date: Oct 2008
Location: England
Posts: 116
Quote:
Originally Posted by Les Howarth View Post
The filter thread on the Fujinon lenses for the GY-HD cameras is a "standard" 82mm. Both my original 16x kit lens and a 17x which I upgraded to testify to this.

Although the 16x has a recessed front element which is considerably smaller the screw in on the shroud is still 82mm.

The adapter is for 72mm diameter lenses and itself has a filter size of 82mm at the front.
Thanks for the info. It'll be useful for future reference. When I come to look at filters ;-)
Andrew Carter 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


 



All times are GMT -6. The time now is 07:48 PM.


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