SGpro & HV-20?

Peter Moretti · December 4th, 2007, 12:10 PM

BTW, looking at your very nice lens list, I'm wondering how much of a problem color matching is. Do white balance after changing lenses? Does that work to make the color uniform?

As far as the Brevis goes, IMHO, they seem like a totally class operation w/ excellent support and their latest diffuser does look quite good.

Cary Lee · December 5th, 2007, 10:46 PM

I only white balance when there is a change in lighting or conditions. Lens changes doesn't really matter if the subject and lighting is consistent. I use a 18 percent gray card.

Peter Moretti · December 11th, 2007, 01:04 AM

BTW, one of my concerns using an SGPro w/ an HV-20 is that I've heard there is vignetting. One solution is apparently to use an extension tube. I'd love for someone who's used this combination to comment or for Wayne to chime in.

I know that Brevis uses a different diffuser for small cameras, but SGPro use one for all cams. Perhaps this can cause some vignetting? IDK?

P.S. I'll be starting out w/ a Nikon 50mm 1.8 autofocus lens. (I have one lying around.)

Cary Lee · December 11th, 2007, 03:49 AM

Word of caution..AF lenses tend to need a power source to open up the iris..Without the power...you iris will remain shut and it would be useless on the adapter.

Dennis Wood · December 20th, 2007, 12:00 AM

The HV20 is indeed an issue with systems not designed for it. The Brevis does have a configuration (CF1 Imaging Element) designed to provided full frame performance in excess of the SLR 36mm standard, in both our non-flipped, and flipped modes :-) I personally own an HV20 and every one of our updates is carefully tested with it. The new flip system even features two points of adjustment to get the HV20 perfectly centered. This is a well known issue with that camera.

Peter, thanks for your kind words. On top of a new location with a dedicated video support studio, we've got a published business phone, forum, and daily monitored email at sales@cinevate.com The fellow answering your questions there (Hubert Den Draak) is a 25 year film veteran who speaks four languages. "Class Act" is a very nice compliment and something we're working hard towards :-)

December 5th, 2007, 10:46 PM	#17
Cary Lee Regular Crew Join Date: Mar 2004 Location: Hollywood USA Posts: 128	I only white balance when there is a change in lighting or conditions. Lens changes doesn't really matter if the subject and lighting is consistent. I use a 18 percent gray card. __________________ Canon XHA1, SGpro,Flip,FF, RR Mattebox, Nebtek V-R70p-HDA with Canon, Nikkor Primes 24mm f2.8, 28mm f2.8, 35mm f2.0, 50mm f1.4, 85mm f1.4, 105mm f1.8, 135mm f2.0, and 300mm f4.0.

December 11th, 2007, 01:04 AM	#18
Peter Moretti Trustee Join Date: Mar 2007 Location: Sherman Oaks, CA Posts: 1,259	BTW, one of my concerns using an SGPro w/ an HV-20 is that I've heard there is vignetting. One solution is apparently to use an extension tube. I'd love for someone who's used this combination to comment or for Wayne to chime in. I know that Brevis uses a different diffuser for small cameras, but SGPro use one for all cams. Perhaps this can cause some vignetting? IDK? P.S. I'll be starting out w/ a Nikon 50mm 1.8 autofocus lens. (I have one lying around.) Last edited by Peter Moretti; December 11th, 2007 at 02:48 AM.

December 11th, 2007, 03:49 AM	#19
Cary Lee Regular Crew Join Date: Mar 2004 Location: Hollywood USA Posts: 128	Word of caution..AF lenses tend to need a power source to open up the iris..Without the power...you iris will remain shut and it would be useless on the adapter. __________________ Canon XHA1, SGpro,Flip,FF, RR Mattebox, Nebtek V-R70p-HDA with Canon, Nikkor Primes 24mm f2.8, 28mm f2.8, 35mm f2.0, 50mm f1.4, 85mm f1.4, 105mm f1.8, 135mm f2.0, and 300mm f4.0.

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December 4th, 2007, 12:10 PM	#16
Peter Moretti Trustee Join Date: Mar 2007 Location: Sherman Oaks, CA Posts: 1,259	BTW, looking at your very nice lens list, I'm wondering how much of a problem color matching is. Do white balance after changing lenses? Does that work to make the color uniform? As far as the Brevis goes, IMHO, they seem like a totally class operation w/ excellent support and their latest diffuser does look quite good.

December 20th, 2007, 12:00 AM	#20
Dennis Wood Major Player Join Date: Mar 2005 Location: Ontario, Canada Posts: 916	The HV20 is indeed an issue with systems not designed for it. The Brevis does have a configuration (CF1 Imaging Element) designed to provided full frame performance in excess of the SLR 36mm standard, in both our non-flipped, and flipped modes :-) I personally own an HV20 and every one of our updates is carefully tested with it. The new flip system even features two points of adjustment to get the HV20 perfectly centered. This is a well known issue with that camera. Peter, thanks for your kind words. On top of a new location with a dedicated video support studio, we've got a published business phone, forum, and daily monitored email at sales@cinevate.com The fellow answering your questions there (Hubert Den Draak) is a 25 year film veteran who speaks four languages. "Class Act" is a very nice compliment and something we're working hard towards :-)