LS 300 w/Lumix power zooms at DVinfo.net

Jim Martin · April 29th, 2015, 01:01 PM

We just finished testing the JVC LS 300's zoom rocker with the Lumix 14-42mm & the 45-140mm power zooms....
First off, the rocker does work with these lenses...yea!......
On both lenses, if you stay in S35 on the mapping section, the 14-42 does vignette in the corners about 3% all the way through the zoom. With the 45-140, it vignettes a little less but is still there. When we re-mapped to MFT,(80%), the 45-140mm is fine but with the 14-42mm it still had a tad of vignette in the lower corners so we had to go down to 78% to clear it.
We are still looking for any other MFT lenses with a power zoom that might work and will report when we find them.

Jim Martin
EVSonline.com

Bob Richardson · May 1st, 2015, 11:28 AM

Do you know how the speed of the zoom motor, when controlled by the LS 300, compares when the lens is placed on a Panasonic camera?

I have the Lumix 45-175mm power zoom lens, and when paired with my GH2 the slowest zoom speed is too fast for my taste. I miss the ability to do slow, almost imperceptible zooms with an ENG-style lens (I used to have an HM700 with the Fujinon 17X lens). If you do get a 45-175mm to test, please check the total time it takes to go from one extreme to the other at the slowest speed. (Thanks!)

I'm considering the LS 300 as a hybrid camera for events while keeping my GH series cameras for digital cinema work, and it would be nice to share glass across cameras. Although so far I'm disappointed by the sample footage, especially in the highlights, but I'm hoping that it's just prerelease camera issues and that better-performing profiles can be configured.

Jim Martin · May 1st, 2015, 12:05 PM

When I used the rocker on the right side of the camera, you could control the speed. The small rocker on the handle mad it move fast....but, you have the ability to select the speed in the menu (L,M,H) for both rockers.

Jim Martin
EVSonline.com

Michel Rivest · May 1st, 2015, 08:10 PM

Hi. Is there any other lenses (with special adapters) that have push fast auto-focus button and servo zoom and can be used with this cam for, let's say, sports events & weddings ?

Thanks to answer

Anthony Lelli · May 2nd, 2015, 02:31 AM

Quote:

Originally Posted by Michel Rivest

Hi. Is there any other lenses (with special adapters) that have push fast auto-focus button and servo zoom and can be used with this cam for, let's say, sports events & weddings ?

Thanks to answer

there is the 14-45 power zoom , and the 45-175 power zoom, both for panasonic. in order to get a real zoom and a decent footage at least as good as a cell phone we'll have to spend 5x more for a camcorder. I have the feeling that we will never see a real zoom with servo and AF in M4T . because if they do that then we'd buy (all) a gh4, no?

Erwin van Dijck · May 2nd, 2015, 10:16 AM

So I understand that to avoid vignetting you can crop the sensor of the LS300.

Can you still record 4K? Or is it upscaled to 4K?

Craig Yanagi · May 7th, 2015, 12:27 PM

You will be able to record in 4K down to 80% of scale of the imager. 4K is the actual scan of the image, not an interpolation.

April 29th, 2015, 01:01 PM	#1
Jim Martin Major Player Join Date: Jul 2004 Location: Burbank, CA 91502 Posts: 949	LS 300 w/Lumix power zooms We just finished testing the JVC LS 300's zoom rocker with the Lumix 14-42mm & the 45-140mm power zooms.... First off, the rocker does work with these lenses...yea!...... On both lenses, if you stay in S35 on the mapping section, the 14-42 does vignette in the corners about 3% all the way through the zoom. With the 45-140, it vignettes a little less but is still there. When we re-mapped to MFT,(80%), the 45-140mm is fine but with the 14-42mm it still had a tad of vignette in the lower corners so we had to go down to 78% to clear it. We are still looking for any other MFT lenses with a power zoom that might work and will report when we find them. Jim Martin EVSonline.com

May 1st, 2015, 11:28 AM	#2
Bob Richardson Regular Crew Join Date: Mar 2009 Location: Portland, OR Posts: 178	Re: LS 300 w/Lumix power zooms Do you know how the speed of the zoom motor, when controlled by the LS 300, compares when the lens is placed on a Panasonic camera? I have the Lumix 45-175mm power zoom lens, and when paired with my GH2 the slowest zoom speed is too fast for my taste. I miss the ability to do slow, almost imperceptible zooms with an ENG-style lens (I used to have an HM700 with the Fujinon 17X lens). If you do get a 45-175mm to test, please check the total time it takes to go from one extreme to the other at the slowest speed. (Thanks!) I'm considering the LS 300 as a hybrid camera for events while keeping my GH series cameras for digital cinema work, and it would be nice to share glass across cameras. Although so far I'm disappointed by the sample footage, especially in the highlights, but I'm hoping that it's just prerelease camera issues and that better-performing profiles can be configured.

May 1st, 2015, 12:05 PM	#3
Jim Martin Major Player Join Date: Jul 2004 Location: Burbank, CA 91502 Posts: 949	Re: LS 300 w/Lumix power zooms When I used the rocker on the right side of the camera, you could control the speed. The small rocker on the handle mad it move fast....but, you have the ability to select the speed in the menu (L,M,H) for both rockers. Jim Martin EVSonline.com

May 1st, 2015, 08:10 PM	#4
Michel Rivest New Boot Join Date: Jul 2013 Location: Canada Posts: 11	Re: LS 300 w/Lumix power zooms Hi. Is there any other lenses (with special adapters) that have push fast auto-focus button and servo zoom and can be used with this cam for, let's say, sports events & weddings ? Thanks to answer

May 2nd, 2015, 10:16 AM	#6
Erwin van Dijck Regular Crew Join Date: Nov 2007 Location: Hoofddorp, The Netherlands Posts: 75	Re: LS 300 w/Lumix power zooms So I understand that to avoid vignetting you can crop the sensor of the LS300. Can you still record 4K? Or is it upscaled to 4K?

May 7th, 2015, 12:27 PM	#7
Craig Yanagi JVC America Join Date: Jan 2006 Location: Wayne, New Jersey Posts: 198	Re: LS 300 w/Lumix power zooms You will be able to record in 4K down to 80% of scale of the imager. 4K is the actual scan of the image, not an interpolation. __________________ Craig Yanagi - National Marketing Manager JVC Professional Video Division, JVCKENWOOD USA Corp.