AVCHD footage choppy after import to FCP 10.3

Gregg Malmborg · January 28th, 2017, 04:57 PM

William,
Here is the link to a brief clip until I upload one in Vimeo.

Regards Gregg.

Geoff Addis · January 29th, 2017, 11:22 AM

That looks very much like 24 fps progressive judder to me - that's why I prefer interlaced.

Gary Huff · January 29th, 2017, 11:28 AM

Quote:

Originally Posted by Geoff Addis

That looks very much like 24 fps progressive judder to me - that's why I prefer interlaced.

Interlaced looks awful on modern screens. Why would you shoot interlaced at all? If you want to eliminate judder, shoot 60p.

William Hohauser · January 29th, 2017, 03:06 PM

Quote:

Originally Posted by Gregg Malmborg

William,
Here is the link to a brief clip until I upload one in Vimeo.

Westbound UP at Roseville Yard, Sacramento. - YouTube
Regards Gregg.

I could spend hours filming trains at a working freight yard, you are very lucky.

There was very little motion blur when I would still frame the movie so I am assuming that the camera was on a faster shutter than 1/48. It might be 1/120 but I am guessing. I am not familiar with the working of your camera but I do know that some cameras, if put on full automatic, will use faster shutter settings as a way to control exposure in bright daylight situations if there isn't a neutral density filter on the lens. Works OK for people being interviewed but action can look odd. 24p (or 23.97) should normally be 1/48 shutter. 25p - 1/50. 30p - 1/60. These look the most natural for those frame rates.

Gregg Malmborg · January 29th, 2017, 04:48 PM

Hi William,
That video cost me $15.000.and a trip halfway round the world..LOL I've always been a fan of US railroads.
You are spot on , that was shot at 120 at 25fps. I was trying a few different shutter speeds but I still get the jitters at 50 sec at 25fps. I shoot on manual and the camera has three ND filters. The problem is the footage is silky smooth when played on the camera regardless of shutter speeds? So the plot thickens I guess. I have more than 10hrs of footage from the States so I ant it to look the best it can.
Gregg.

Pete Cofrancesco · January 30th, 2017, 11:32 AM

It's obvious the camera settings. I can't believe you could be shooting such a thing @25fps. Just changing setting without an understanding of what you're doing is a recipe for disaster. The camera playback is not designed as a definitive representation of the actual video. It be like saying something is wrong with your computer because it looked brighter in your camera's viewfinder.

Duncan Craig · January 30th, 2017, 02:42 PM

I'd suggest you put a native clip on Dropbox or whatever and we can have look ourselves.
I shoot 25p most of the time and stick to a 180 degree shutter whenever possible (which is almost always).

Gregg Malmborg · January 30th, 2017, 08:09 PM

Hi Duncan,
I will get a clip up there shortly. I have tried 180 degree shutter at both 25p and 50p, no difference in smoothness and I actually prefer 25p overall.

Gregg.

Geoff Addis · February 4th, 2017, 02:54 AM

Quote:

Originally Posted by Gary Huff

Interlaced looks awful on modern screens. Why would you shoot interlaced at all? If you want to eliminate judder, shoot 60p.

It depends what your distribution format is to be - B'cast tv is interlaced and Blurry does not support 50fps.

January 28th, 2017, 04:57 PM	#16
Gregg Malmborg Regular Crew Join Date: Jan 2011 Location: Brisbane, Qld, Australia Posts: 50	Re: AVCHD footage choppy after import to FCP 10.3 William, Here is the link to a brief clip until I upload one in Vimeo. Westbound UP at Roseville Yard, Sacramento. - YouTube Regards Gregg. __________________ Photography...the one thing I can do OK with one eye!!

January 29th, 2017, 11:22 AM	#17
Geoff Addis Regular Crew Join Date: Jan 2008 Location: Reading, UK Posts: 116	Re: AVCHD footage choppy after import to FCP 10.3 That looks very much like 24 fps progressive judder to me - that's why I prefer interlaced.

January 29th, 2017, 04:48 PM	#20
Gregg Malmborg Regular Crew Join Date: Jan 2011 Location: Brisbane, Qld, Australia Posts: 50	Re: AVCHD footage choppy after import to FCP 10.3 Hi William, That video cost me $15.000.and a trip halfway round the world..LOL I've always been a fan of US railroads. You are spot on , that was shot at 120 at 25fps. I was trying a few different shutter speeds but I still get the jitters at 50 sec at 25fps. I shoot on manual and the camera has three ND filters. The problem is the footage is silky smooth when played on the camera regardless of shutter speeds? So the plot thickens I guess. I have more than 10hrs of footage from the States so I ant it to look the best it can. Gregg. __________________ Photography...the one thing I can do OK with one eye!!

January 30th, 2017, 11:32 AM	#21
Pete Cofrancesco Inner Circle Join Date: May 2004 Location: USA Posts: 3,004	Re: AVCHD footage choppy after import to FCP 10.3 It's obvious the camera settings. I can't believe you could be shooting such a thing @25fps. Just changing setting without an understanding of what you're doing is a recipe for disaster. The camera playback is not designed as a definitive representation of the actual video. It be like saying something is wrong with your computer because it looked brighter in your camera's viewfinder.

January 30th, 2017, 02:42 PM	#22
Duncan Craig Major Player Join Date: Jul 2003 Location: Leeds, UK Posts: 660 Images: 10	Re: AVCHD footage choppy after import to FCP 10.3 I'd suggest you put a native clip on Dropbox or whatever and we can have look ourselves. I shoot 25p most of the time and stick to a 180 degree shutter whenever possible (which is almost always). __________________ FCPX/LS300/EX1/FS100/GoPro/Vinten/HotHead/Jib/Track/Dedos/Lightstorm/Coollights

January 30th, 2017, 08:09 PM	#23
Gregg Malmborg Regular Crew Join Date: Jan 2011 Location: Brisbane, Qld, Australia Posts: 50	Re: AVCHD footage choppy after import to FCP 10.3 Hi Duncan, I will get a clip up there shortly. I have tried 180 degree shutter at both 25p and 50p, no difference in smoothness and I actually prefer 25p overall. Gregg. __________________ Photography...the one thing I can do OK with one eye!!