[Nicholas Natteau]

hi Jeremy,

As far as i can tell yes it is working. But can you please tell me how you did the 24p pulldown removal in compressor? I’ll post the original 720p59.94 clip I have and the converted 720p24 clip I ran through compressor so you can see the problem I’m having with the choppy frame rate I get after the frame rate conversion in compressor.

[Nicholas Natteau]

[Jeremy Garchow] “Shooting 720p30 is totally a valid workflow”

Hi Jeremy,

Just one question regarding your above statement. Because I am up converting 480i29.97 footage to 720p, should I not select “MXO2 Apple Pro Res 720p29.97” since like that I would stay at the same frame rate? Matrox MXO2 has both a 720p29.97 and a 1080p29.97 up convert setting.

The problems I encountered were when I up converted to 720p59.94. I wound up with twice the number of frames and this slowed down my editing a lot. In FCP, when I was moving one frame at a time, it was taking me twice as long since every second frame was a duplicate of the preceding frame.

Ideally I hoped to be editing in a 720p24 timeline, but with my up converted 720p clips (that were either 59.94 or 29.97), when I ran them through Compressor to change the frame rate to 24p, I got bad results – just a choppy frame rate.

[Nicholas Natteau]

Hi Jeremy,

Regarding your suggestion using Compressor to reverse telecine 480i29.97 mini-DV tapes of WWII newsreel footage originally shot at 24p. I got mixed results. So I’m convinced I’m doing something wrong. In the standard video settings window I selected 23.976 for my custom frame rate. In the encoder tab i selected reverse telecine.

On some clips the results were great. But on at least one clip I ended up with choppy playback, not smooth.. I’ll post the clip here within the hour.

[Nicholas Natteau]

Again, why 720p 29.97? There is no deliverable with that frame rate.

Hi Shane,

Just wanted to ask you about that point you made. What if you shot footage at 720p30? You said there is no deliverable with that frame rate. But yet many people shoot at that frame rate on the HVX200.

If my film were going straight to DVD and broadcast, would 720p29.97 to 720p30 not be the correct frame rate to master in? I mean why 720p59.94? I thought all broadcasts in North America are 29.97.

By DVD, I mean Blu-Ray not just only standard DVD, in which case I wouldn’t be bothering with HD to begin with. I am also doing this in order to future proof my work since SD is a fading format with diminishing appeal.

[Nicholas Natteau]

[Shane Ross] ” Because that was the only option in the Kona (Matrox is the only one I see that has 720p 29.97 as an option), and I was removing those frames anyway, as we were working 720p 23.98. I wasn’t staying at 59.94. “

Hi Shane,

To go from 720p59.94 to 720p24 where you removing frames in Compressor like you describe in your article? In other words, going into the “Standard video compression settings window and selecting “23.98” (or in my case (Apple Pro Res) I would be selecting “23.976” according to your article, correct?

[Nicholas Natteau]

HI SHane,

Thanks for replying, but I didn’t understand your last sentence.

Are you saying I should use Compressor for the frame rate conversion? I didn’t speak to AJA tech support about this but I will.

After carefully rereading your article on upconverting with the Kona 3, I had a Compressor question:
Because my WWII footage was originally shot 24P, should I not be selecting “reverse telecine” in Compressor’s Encoder window? Or instead should I just be selecting “best” on all those tabs?

Finally, sorry to keep asking about this, I’m just having trouble understanding the “720p59.94” up convert option. For me all it did was duplicate all my frames from 29.97 to 59.94. Is this not problematic when editing? That you wind up with twice the number of frames you originally had and that every second frame is a duplicate of the first. Or is it simply that 59.94 converts better to 24p than 29.97? Is that the reason?

Thanks for any further light you can shed on these intricacies.

[Nicholas Natteau]

Sorry everyone,

My mistake. The results were not as good as I thought. On one clip I had good results but not on the others. The end result was quite disappointing: up converting from 480i29.97 to 720p24 via MXO2 resulted in a choppy frame rate. I had selected “MXO2 APple Pro Res 720p24” in the log and capture drop down menu.

I guess there’s no fast way to do this then. So if I have to master in a 720p24 timeline…and I need to incorporate 480i29.97 footage (and I certainly can’t afford a Teranex), should I then just up convert via MXO2 to 720p29.97 and then use Compressor to change the frame rate to 720p24?

Thanks in advance,

– Nick

[Nicholas Natteau]

Hi Walter,

Just a quick question for you. I’m trying to decide between getting the FSI 1770W and its bigger brother the LM2450W. I see that the 2450W is physically bigger. But what about the extra contrast ratio: 1100 vs 900.

Aside size and more contrast ratio, what else is better about the LM2450 than the 1770W?

Is the 1770W big enough for doing critical evaluation and is its 900:1 constrast ratio enough as well for editing? I’m leaning towards the 1770W right now because of its portability factor…light enough and small enough for field work and hopefully editing in the studio as well. One size fits all so to speak.

Thanks very much in advance,

– Nick

[Nicholas Natteau]

I didn’t know Kona 3 had that option. I have Kona LHi and my only options with that card are “720p59.94”, 1080i29.97 and 1080psf24. But MXO2 seems to have more upconvert options.

How many upconvert options does Kona 3 have?

[Nicholas Natteau]

Hi Shane,

Yes, as far as I can tell. I’ll post a couple seconds of my upconverted footage.

But I was amazed! In FCP’s Log and Capture window, all I did was select “MXO2 Apple Pro Res 720p23.98” as my upconvert. My 480i29.97 clip became a 720p23.98 clip in the browser with “23.98” in the fps column. I remember you had mentioned that 720p.29.97 was unnatural, that I should either use “720p59.94” or 720p24 but not “720p29.97”

Interestingly I didn’t find any problems selecting “720p29.97” essentially 720p30. Except that now and again (every 6 or 7 frames) I seemed to have a duplicate frame.

The problem with upconverting to “720p59.94” was that I essentially ended up with twice the number of frames…every second frame being a duplicate of the preceding one. So that if I advanced frame by frame in my resulting 59.94 timeline, movement would stop at every second frame and resume after.

But after selecting “720p23.98” for my upconvert via MXO2, I had a perfect frame rate, no duplicate frames. Of course I’m talking about footage that was originally shot 24p (WWII) but transferred to mini-DV tapes at 480i29.97

Best,

– Nick