The end of 35mm adapers and hv20s....

Well, I was braced for much worse. The only negative thing I have to say about that footage, is the rolling shutter.

Otherwise, for a non controlled environment, it wasn't half bad. Although focus was slightly off, it was a great example from a non bias source!

I don't think this is gonna shake out to be the movie mode we had all hoped for, but it's proving to not be completely useless. I am still anxious to see it tested out here in the states upon release.

Thank you for uploading the footage! We are all very appreciative!


BTW: What is it with this thread? Seems like a county fair, just bringing out the weirdest people.:huh:


alright, well hopefully you can put it in M mode and have everything in manual and still be able to engage D-Movie Mode so its all locked. holding down the button will f*ck me up trying to follow focus or something, i know it. i don't see D-Movie on the mode ring around the shutter button so... maybe.

Zak, if I recall watching a movie about d-movie, to access it you press a button, so it's theoretically accessible within different modes.

All I know is that D-movie isn't a mode that switches around the ring. It's a button on the body.
 
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Maybe the softness might have to do with the sharpness adjustment in the set up. This camera has some many bells and whistles it might take a while to set up properly for the dmovie to work at its best.
 
That clip was just focused at infinity. If you look at when he is done panning left, you can see on the left side of frame down inside of the store- its very sharp.
 
At and F/11, there is a chance there is some scattered light from the aperture, but most unlikely. I would guess this camera had a decent lens if it were up for show/ demonstration.

I think the camera was focused to infinity , therefore when the camera was pointed at the floor was considerably soft.

But what do I know? I can't take a photo worth my azz! :)
 
Here is the link again.

http://www.vimeo.com/1641816

As for posting it, I felt kind of obligated to do so since I mentioned it.

Anyway, through-the-stained-glass shot is coming up later.

Watch it if you think you can handle it.

Don't tell me I did not warn you!

That did it for me. After seeing this I don't think I will be selling the Hv20. The rolling shutter is WAY to bad even with very smooth pans.
Lets wait to see what the competition has to offer.
I think it's great product if you are a photographer and want to start getting some video experience, but not the other way around (at least not at the monent).
 
Anybody know if MJPEG has EXIF or other metadata?


I downloaded the file and opened it in an application called GSpot. This is what it shows. It could not find any EXIF info. EDIT: EXIF would have been stored in the AVI which is capable of it.

Audio is mono PCM sampled at 11025Hz, bitrate is 176 kb/s. That is 16 bits per sample.

Video is MJPEG compressed to 11960 kbits/second; quality factor is 0.541 bits/pixel. Thats kind of low, isn't it?
The skateboard clip is 13383 kbits/second, 0.605 bits/pixel.
 

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I think the rolling shutter wobble will be less visible if you shoot with lower shutter speeds. This latest clip was shot at f11 so stop it down to f5 and make sure theres plenty of light and lets see what happens :)

Cant wait for more footage and tests :>
 
That did it for me. After seeing this I don't think I will be selling the Hv20. The rolling shutter is WAY to bad even with very smooth pans.
Lets wait to see what the competition has to offer.

Good for you. I am getting mine.
 
I think the rolling shutter wobble will be less visible if you shoot with lower shutter speeds. This latest clip was shot at f11 so stop it down to f5 and make sure theres plenty of light and lets see what happens :)

Cant wait for more footage and tests :>

If you change from f/11 to f/5.6 then you would have to use a higher shutter speed, that is, less exposure time.

Anyway, shutter speed doesn't affect the amount of skew you get when panning, it will only control the amount of blur.

If the subject is more complex than a straight line then maybe lower shutter speeds will cover the artifacts by blurring.
 

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reason why i think the bike video has less skew. the movement of the biker was a lot different than the movement of the people walking if the makes any sense at all.
 
If you change from f/11 to f/5.6 then you would have to use a higher shutter speed, that is, less exposure time.

Anyway, shutter speed doesn't affect the amount of skew you get when panning, it will only control the amount of blur.

If the subject is more complex than a straight line then maybe lower shutter speeds will cover the artifacts by blurring.

Sure the shutter speed would affect the amount of skew. If the camera is scanning each frame much faster, the overall skew should be reduced.

Am I having a brain fart? I really think it would help reduce skew.
 
Theoretically, having a faster shutter speed would reduce the rolling shutter. Faster scans would create less slanted frames.
The scan rate is fixed. Shutter speed is defined as the time difference between the resetting pointer and the reading pointer.

You can see in the skateboard clip that the front fork angle changes as camera starts to pan. The reason for less skew is simply lower panning speed.
 
The longer the lens, I think, the easier it is to perceive the rolling shutter effect when panning. And Shutter Speeds really don't help. Don't ruin your image just because you think Skew is gonna matter. It matters mostly in effects shots.

You guys think that it's excessive, but honestly on an 85mm when using the RED I see it all the time. It's just gonna be that way until a Global Shutter CMOS solution gets dropped.

I haven't seen a single thing that's gonna stop me from getting this camera. It's pretty much the Honda Civic of our world, now. Great Gas Saver but you can turbo charge the sucker.

And, IMO, it looks like it resolves WAY more detail than anything Sub HPX3000 to me. That's just what I see even from Vimeo.
 
Bearing I would love for you to further explain how the shutter works in this camera. I am only used to film cameras, not digital.

In film cameras a high shutter speed would mean each frame is exposed at a smaller amount of time, reducing motion blur, and if applicable a wobble (not possible on film, but theoretically would reduce wobble on cmos)

Does the D-90 shutter not work like a real shutter? If it does, wobble should be reduced because it's sampling a smaller unit of time... per frame that is.

Until you clarify, I'm having faith that faster shutter speeds, aka smaller shutter angles will yield more clean results.
 
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