replace jvc hd200 lens at DVinfo.net

Eric Ramahatra · July 30th, 2007, 08:38 AM

hello

i would like to replace my jvc hd200 fujinon lens with a 20mm prime one to minimize size for working with mini35 adapter (redrock m2).
Can i buy a nikon>jvc mount adapter and put a nikon 20mm lens on it ?

Chris Hurd · July 30th, 2007, 01:05 PM

I don't think that will work... the field of view from a 20mm lens when mounted on a 1/3rd-inch camera head such as the HD200 will be fairly telephoto, I don't think you'll be able to fill the frame with a 35mm adapter or focus properly... just my best guess though. If I'm reading you right, you're proposing this:

35mm lens > Redrock M2 > 35mm prime lens > Nikon adapter > HD200 camera

Eric Ramahatra · August 1st, 2007, 03:37 AM

yes it is.
With the fujinon lens it's working like this:

35mm lens > Redrock M2 > Fujinon lens at 20mm > HD200 camera

setting the fujinon at 20mm equals a telephoto at 140mm in a 24x36 field of view (x7).

this is why i would replace it by a lens with the same focal lenght.

Steve Oakley · August 8th, 2007, 10:55 AM

yes except -
a 20mm prime will be f2.8 or maybe for big bucks, 2.0. your stock lens is 1.4ish and I think you'll find that the stock lens will be sharper than the 35mm prime by a margin. also a a film lens isn't designed to focus the RGB colors thru the optical block as a video lens is. if you can find a HD grade video lens, you might have something, but I don't think its worth the time and effort for very little be gained, and I think in this case lost.

July 30th, 2007, 08:38 AM	#1
Eric Ramahatra Regular Crew Join Date: Mar 2007 Location: Paris Posts: 72	replace jvc hd200 lens hello i would like to replace my jvc hd200 fujinon lens with a 20mm prime one to minimize size for working with mini35 adapter (redrock m2). Can i buy a nikon>jvc mount adapter and put a nikon 20mm lens on it ? __________________ JVC HD200+redrock M2+1.4 lens+steadicam Flyer mini35 weddings

July 30th, 2007, 01:05 PM	#2
Chris Hurd Obstreperous Rex Join Date: Jan 2001 Location: San Marcos, TX Posts: 27,368 Images: 513	I don't think that will work... the field of view from a 20mm lens when mounted on a 1/3rd-inch camera head such as the HD200 will be fairly telephoto, I don't think you'll be able to fill the frame with a 35mm adapter or focus properly... just my best guess though. If I'm reading you right, you're proposing this: 35mm lens > Redrock M2 > 35mm prime lens > Nikon adapter > HD200 camera __________________ CH Search DV Info Net \| 20 years of DVi \| ...Tuesday is Soylent Green Day!

August 1st, 2007, 03:37 AM	#3
Eric Ramahatra Regular Crew Join Date: Mar 2007 Location: Paris Posts: 72	yes it is. With the fujinon lens it's working like this: 35mm lens > Redrock M2 > Fujinon lens at 20mm > HD200 camera setting the fujinon at 20mm equals a telephoto at 140mm in a 24x36 field of view (x7). this is why i would replace it by a lens with the same focal lenght. __________________ JVC HD200+redrock M2+1.4 lens+steadicam Flyer mini35 weddings

August 8th, 2007, 10:55 AM	#4
Steve Oakley Trustee Join Date: Apr 2006 Location: United States Posts: 1,158	yes except - a 20mm prime will be f2.8 or maybe for big bucks, 2.0. your stock lens is 1.4ish and I think you'll find that the stock lens will be sharper than the 35mm prime by a margin. also a a film lens isn't designed to focus the RGB colors thru the optical block as a video lens is. if you can find a HD grade video lens, you might have something, but I don't think its worth the time and effort for very little be gained, and I think in this case lost.