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-   -   HV20 and Brevis35...first footage! (https://www.dvinfo.net/forum/canon-vixia-series-avchd-hdv-camcorders/89836-hv20-brevis35-first-footage.html)

Dennis Wood March 24th, 2007 07:10 PM

HV20 and Brevis35...first footage!
 
Michael Schoenfeld posted up this clip using his assistant, the HV20, and the Brevis35 using our standard CF1 imaging element and 50mm 1.4, 85 1.8, 135 f2, and 35 1.4. EOS lenses.

Etienne Botha March 24th, 2007 08:01 PM

I'm blown away, I don't know what to say.

Nick Laskowski March 24th, 2007 11:07 PM

Please advise
 
Just looking at this footage and its great, but as far as the brevis is concerned can you please elaborate for me? I would be interested in knowing the basics of what it is and how it works, please take a moment and elaborate. Thanks, Nick.

Alan Dunkel March 24th, 2007 11:10 PM

Very nice
 
Dennis, Looks great, was that with or without the achromat or the extension tube? Thanks, Alan

Alan Dunkel March 24th, 2007 11:17 PM

It is a 35mm lens adapter..
 
Quote:

Originally Posted by Nick Laskowski (Post 647769)
Just looking at this footage and its great, but as far as the brevis is concerned can you please elaborate for me? I would be interested in knowing the basics of what it is and how it works, please take a moment and elaborate. Thanks, Nick.

Nick,
..designed to get a shallow depth of field into a shot. With the 24p of the HV20, it really helps achieve a more theatrical look. Look at the URL in Dennis' post for info on the Brevis35.
Regards, Alan

Nick Laskowski March 24th, 2007 11:38 PM

Thanks Alan.

Chris Barcellos March 25th, 2007 12:08 AM

Oh my god.... Spectacular.... Dennis, do we have a Pentax K mount in the works?

Mike McEntire March 25th, 2007 12:55 AM

that looks insanely good. can't wait to get my Brevis later in the week. It is going to be great.

Kristin Stewart March 25th, 2007 03:15 AM

Very nice, but the sharpness isn't sometimes completly accurate. It's hard to tell, it would be great to have a better size in HD. Maybe he should have closed the lenses one stop further.

Dennis Wood March 25th, 2007 10:05 AM

Kristin, he's using EOS lenses. They use a servo controlled aperture which is locked wide open unless the lens is mounted on an EOS SLR. You can read more on Michaels comments in his thread at the cinevate forum. I'll have an HV20 in house shortly for testing and will post up some full frame footage. Having looked at hours and hours of adapter footage, I can tell you the HV20 footage is very clean.

Chris, the Pentax K mount has been requested a fair bit, so we are bringing it into the current mount collection.

Michael did have an HD 72mm acrho on there! This would make the HV20 the first 43mm camera that requires it.

Kristin Stewart March 25th, 2007 11:10 AM

Thanks Dennis... I agree, this HV20 footage is very clean ! In fact, except for an easier ergonomy (easier control maybe ?), I don't really see the advantage of buying a more expensive camera. If Michael could shoot some landscapes outside it would be great !

Michael Schoenfeld March 25th, 2007 12:46 PM

HV20 Brevis combo
 
hello all,

Michael Schoenfeld here,

Kristen greetings.....

FYI, Friday was a very busy day @ my studio, so the "depth" and clinical accuracy of the test left much to be deisred!

I own two HVX 200's that create a better image than the HV20, but not "that" much under certain circumstances. This little camera should be huge for the independent film-maker world.

The lenses I tested were focused without and follow focus devices - just my hand turning the lens, so I do know what an "in focus" image looks like, it's just mighty hard to get it with any consistency by hand. and These are fast shallow lenses! That being said they are very sharp wide open, and that is how I intend to use them.

Neat little combo - looks really odd though.

All the best,

Michael Schoenfeld

View my newest portfolio offerings at:

www.michaelschoenfeld.com

Michael Schoenfeld March 25th, 2007 12:47 PM

Kristin,

Sorry about the spelling!

Michael Schoenfeld

Rob Unck March 25th, 2007 02:33 PM

Quote:

Originally Posted by Michael Schoenfeld (Post 648040)
Neat little combo - looks really odd though.

Michael,

Thanks for posting those initial tests and giving some background.

Would love to see a picture of how "odd" the little combo looks all put together!

Brad Vaughan March 25th, 2007 06:41 PM

Quote:

Originally Posted by Rob Unck (Post 648110)
Michael,

Thanks for posting those initial tests and giving some background.

Would love to see a picture of how "odd" the little combo looks all put together!

I would love to see that picture too.

Kristin Stewart March 26th, 2007 12:44 AM

Hi Michael, don't worry for the spelling... Thanks for your answer ! Could you please explain the reason why you still prefer HVX200 ? The manual controls ? The gamma settings ? By the way, what do you think of the cine gamma of the HV20 ? It would be nice to see a comparison of the 2 settings in this little camera.
In the independant film-maker world you talked about, in which case you think the HV20 will have serious drawbacks compared to HVX200 ?

Thanks Michael !

John Benton March 26th, 2007 01:23 AM

Quote:

Originally Posted by Michael Schoenfeld (Post 648040)
hello all,

Michael Schoenfeld here,

The lenses I tested were focused without and follow focus devices - just my hand turning the lens, so I do know what an "in focus" image looks like, it's just mighty hard to get it with any consistency by hand. and These are fast shallow lenses! That being said they are very sharp wide open, and that is how I intend to use them.

Neat little combo - looks really odd though.

All the best,

Michael Schoenfeld

Michael,
Thanks for the tests -
One of the daunting things using a 35mm adapter on any of these HD cameras is the crucial ability to focus with the viewfinder/LCD.
It looked like you were able to get it quite accurate, however.

So how is the LCD for focus?
Thanks,
John

Dennis Wood March 26th, 2007 11:56 PM

John, I believe Michael did mention in his thread at the cinevate forum that he uses larger HD monitors for critical focus, and wasn't overly thrilled with the HV20 focus assist feature. I'll have the HV20 myself shortly and will be in a postion to at least compare it to the XH-A1.

Mathieu Kassovitz March 27th, 2007 10:41 AM

Quote:

Originally Posted by Michael Schoenfeld (Post 648040)
I own two HVX 200's that create a better image than the HV20

Are you sure? Taken the pics seen all over the place, I wouldn't say that 960 x 540 can be better than a true higher resolution device like this small HV20 really is.

Chris Barcellos March 27th, 2007 11:05 AM

So it seems to me that this camera would take care of flip issue too. Set up your shot, then roll the cameral over and shoot upside down, or even learn to use it upside down. Seems like it might be light enough to hang of the back of the Brevis ? Comment from Mike or Dennis ?

Dennis Wood March 27th, 2007 08:37 PM

Chris, we already have a solution for inverted HV20 (or any other small cam) using our standard rails. It does not correct the LCD flip issue, but it will make monitoring with monitors like the Dell 24" LCD easier. Why doesn't an invert mount correct the onboard LCD? : http://www.maths.ox.ac.uk/~smithdm/upside.html

External monitoring with the Marshall HD 7" LCD is something I've accepted as part of the work flow. Even with the external monitor, the XH-A1's output of magnified footage (using focus assist) to the external port is a welcome aid when testing very shallow DOF options for the Brevis. Hopefully the HV20 will do the same.

Rails mounting with the smaller cams is a good idea as their plastic chassis' tends to flex a bit when racking focus etc. Back when I was using the GS400 a lot, I used it rarely off rails. What I found is that the entire rails/adapter/lens/camera rig can come off the tripod and be used like a fig rig. We're waiting right now for carbon fibre tubing done to our spec, so the rails rig will lose some weight very shortly.

Chris Barcellos March 27th, 2007 08:50 PM

Hi Dennis:

Yeah, I tried it with my FX1 and saw the issue. I use a magnet right side up and that works, but still have flipped image.

John Godden March 27th, 2007 09:39 PM

Quote:

Originally Posted by Dennis Wood (Post 649212)
John, I believe Michael did mention in his thread at the cinevate forum that he uses larger HD monitors for critical focus, and wasn't overly thrilled with the HV20 focus assist feature. I'll have the HV20 myself shortly and will be in a postion to at least compare it to the XH-A1.

Hi Dennis

Please post some clips asap. :-)

Also, a lot of folks are curious if the achro is needed.

Regards
JohnG

Dennis Wood March 27th, 2007 11:15 PM

Ah, the achro. The HV20 surprised us by being the one and only 43mm lens camera that needs an achromat :-( None of the other SD/HD cams at 43mm or under have needed one. That said, we may be able to sneak by without one by tweaking the mount method. Until I get one in hand, I won't be able to comment further. According to the vendor, I should have the cam by next week.

Bill Porter April 20th, 2007 05:13 PM

Quote:

Originally Posted by Dennis Wood (Post 647943)
Kristin, he's using EOS lenses. They use a servo controlled aperture which is locked wide open unless the lens is mounted on an EOS SLR.

This is not true. There are lens mounts which offer aperture control. I can't recall the names of the two companies I found which offer these, but they are out there.


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