videoatlanta
Well-known member
Interesting.
...another video for the 301!
- Thread starter Roberto Tafuro
- Start date
Roberto Tafuro
Well-known member
I have made some tests in 1080p 24fps with my 301 and i agree with Gary, skew is a bit much stronger than 1080p 25fps. But i've find that the picture that i've seen in the viewfinder was different from what the camera was recording! The skew was less in the recorded picture! The only thing i do in NTSC are slow motion...GREAT!!!! 60fps!!!
I've seen your new videos Videoatlanta and what i've seen is this:
In the car pan with the two filter selected at 1/60 the better is the PAP 1. You have blur but you can consider it a real motion blur. For a fast pan you will have that kind of blur. If you're using 720p 60p you can try 1/120 shutter. The PAP 2 gives me the impression of a 301 emulation,with a lot of strobing. The 301 gives you the same strobing with fast shutter speed, but the effect is less than yours and you can find it almost in 1080 25 or 24pn. If you look at this video : http://www.vimeo.com/18513451 the final part is made with a bit of steady and free run, you can notice that there is no blur in the picture. We shoot at 1/250 in 720p 25pn.
In 1080p 25fps you can reduce the effect by using a fast shutter speed but you will have more strobing. But the effect is a bit more pronunced in the 371. Expecially in the clip with 1/500 shutter speed.
That's only my opinion!
I've seen your new videos Videoatlanta and what i've seen is this:
In the car pan with the two filter selected at 1/60 the better is the PAP 1. You have blur but you can consider it a real motion blur. For a fast pan you will have that kind of blur. If you're using 720p 60p you can try 1/120 shutter. The PAP 2 gives me the impression of a 301 emulation,with a lot of strobing. The 301 gives you the same strobing with fast shutter speed, but the effect is less than yours and you can find it almost in 1080 25 or 24pn. If you look at this video : http://www.vimeo.com/18513451 the final part is made with a bit of steady and free run, you can notice that there is no blur in the picture. We shoot at 1/250 in 720p 25pn.
In 1080p 25fps you can reduce the effect by using a fast shutter speed but you will have more strobing. But the effect is a bit more pronunced in the 371. Expecially in the clip with 1/500 shutter speed.
That's only my opinion!
GaryNattrass
Veteran
I agree with Roberto that the effect seems to be worse in the viewfinder but once 24p footage is rendered out from the edit it is generally OK.
I would only use NTSC if I was working for a company that needs it so most of my shooting is at 25p, unless I need off speed when I use 720p
I would only use NTSC if I was working for a company that needs it so most of my shooting is at 25p, unless I need off speed when I use 720p
videoatlanta
Well-known member
Ya, I find 720p60p to look good.
I think 1080i60i looks good.
30p and 24p not so much.
I think 1080i60i looks good.
30p and 24p not so much.
Kolor-Pikker
Well-known member
Well, I watched some of those videos, but there are a few problems... first, all the pans are way too fast for my taste, I don't know why anyone would want to pan a CMOS camera that fast, or any camera, really, unless they were under fire.
Some of the videos aren't even in HD, which would have been compressed 720p anyway, so it's not exactly apparent what detail is being lost. When I said detail going to a smear when I pan, I meant slightly pushing the camera with max drag on the tripod, not a scene from an action flick.
Also, although you have experience with many cameras, the same can't be said of everyone here. Even if I had used a CCD camcorder in the past, would have I been able to spot the difference on memory alone? What you need is a side-by-side of what the image looks like, and what you would have liked it to look like, and use real-world camera motions as well (ie: don't have the drag set to 0).
This DVuser article talks about shooting in progressive scan, and the author just happens to explain ways on how to avoid jitter effects in video, all those "test videos" do the opposite and are a great example of how to aggravate them. You'll almost never see a shot like that in a movie, I mean seriously guys, just because you can doesn't mean you should.
Some of the videos aren't even in HD, which would have been compressed 720p anyway, so it's not exactly apparent what detail is being lost. When I said detail going to a smear when I pan, I meant slightly pushing the camera with max drag on the tripod, not a scene from an action flick.
Also, although you have experience with many cameras, the same can't be said of everyone here. Even if I had used a CCD camcorder in the past, would have I been able to spot the difference on memory alone? What you need is a side-by-side of what the image looks like, and what you would have liked it to look like, and use real-world camera motions as well (ie: don't have the drag set to 0).
This DVuser article talks about shooting in progressive scan, and the author just happens to explain ways on how to avoid jitter effects in video, all those "test videos" do the opposite and are a great example of how to aggravate them. You'll almost never see a shot like that in a movie, I mean seriously guys, just because you can doesn't mean you should.
Roberto Tafuro
Well-known member
Thank you for sharing this Kolor! Good article! Yes i think that with that fast pans you'll have the motion blur in the picture. And i think that when you see the footage on tv the strobing will be less.Yes Videoatlanta, is much evident at 1080p 24p or 30p. But...i have a question that i've never done before!!! The american version of the 301 ( so... the 300! ) has the PAL settings? Maybe you can try 1080p 25fps and see how it looks!
Roberto Tafuro
Well-known member
"You have to shoot more like a professional DoP, as opposed to a testosterone-driven teenager on a mission. This means smooth, slow, and very steady shots".
This is my favorite phrase!!!
This is my favorite phrase!!!
Kolor-Pikker
Well-known member
DVuser is a great site with many interesting articles, I suggest you read "Bokeh Porn" and "Technophile" too, very funny and true! I only wish there were more site like it, besides it and Pro Video Coalition, I'm not aware of any other websites that deal with professional videography.
GaryNattrass
Veteran
I think PAL was an upgrade option on the HPX300, the 370 does have PAL option though!
Roberto Tafuro
Well-known member
Thank you Kolor! I didn't know it! I usually look at motion graphics sites like ae tuts+ or videocopilot,creative cows and so on. I know Pro Video Coalition and i'm happy to put DVuser in my mozilla's bookmark!
Bests!
Bests!