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Search: Posts Made By: Jon Fairhurst
Forum: Open DV Discussion February 26th, 2016, 01:07 PM
Replies: 18
Views: 5,955
Posted By Jon Fairhurst
Re: Compression Question: From 1080 to 720. How does it work?

David, you are absolutely correct that high frequency information near and above the Nyquist frequency is thrown away. Poof. Gone.

But don't discount information theory when it comes to...
Forum: Open DV Discussion February 25th, 2016, 12:56 PM
Replies: 18
Views: 5,955
Posted By Jon Fairhurst
Re: Compression Question: From 1080 to 720. How does it work?

David, that's a lot to respond to. :)

Regarding "throwing information away", that's not necessarily true. If you use a good filter, you take all of the information as the input. Of course, for...
Forum: Open DV Discussion February 24th, 2016, 04:14 PM
Replies: 18
Views: 5,955
Posted By Jon Fairhurst
Re: Compression Question: From 1080 to 720. How does it work?

For more information, search the web on "Finite Impulse Response" filters and "Fourier Transforms" as well as "resampling algorithms". I expect that there are some good tutorials and lectures out...
Forum: Open DV Discussion February 22nd, 2016, 12:28 PM
Replies: 56
Views: 12,144
Posted By Jon Fairhurst
Re: Was Asked to Shoot Commercial...

Regarding the boom and lav - use both. Maybe the lav picks up clothing noise. Maybe the talent moves off axis from the boom. Maybe one of the channels overloads. Maybe one sounds better than the...
Forum: Photon Management February 22nd, 2016, 11:38 AM
Replies: 7
Views: 4,132
Posted By Jon Fairhurst
Re: creating fireworks

I agree that changing the color in post is the cost effective way to achieve the result. As long as the audience believes the effect, it doesn't matter how realistic it is. In fact, realism can often...
Forum: Canon EOS Full Frame for HD February 18th, 2016, 11:37 AM
Replies: 26
Views: 26,933
Posted By Jon Fairhurst
Re: 5D4 Wish List

One feature difference between the 80D and the current 5D line is that the 80D has a flip-screen.

Yeah, there are times that this would be more convenient than attaching a monitor. That said, I...
Forum: Canon EOS Full Frame for HD February 18th, 2016, 11:25 AM
Replies: 26
Views: 26,933
Posted By Jon Fairhurst
Re: 5D4 Wish List

So... Canon announced the 80D camera. This gives some clues as to what we might see with the 5D4 (or 5DX or whatever.)
...
Forum: Canon Cinema EOS Camera Systems February 17th, 2016, 05:46 PM
Replies: 16
Views: 8,740
Posted By Jon Fairhurst
Re: used c100 mk1 - still make sense?

I doubt that any NAB announcement would undermine the used market price of a C100 mkI. Buy used. Make use of it. Sell it when that new NAB cam is actually shipping.

Let's imagine that the C100...
Forum: All Things Audio February 16th, 2016, 12:08 PM
Replies: 10
Views: 3,283
Posted By Jon Fairhurst
Re: Ducking music or not??

One thing that really helps is complimentary EQ for voice and music. If the two don't compete, there's less need to duck. Here's what I do by band:

20-100 Hz - Here, you can boost the music (as...
Forum: Canon EOS Full Frame for HD February 12th, 2016, 02:00 PM
Replies: 26
Views: 26,933
Posted By Jon Fairhurst
Re: 5D4 Wish List

In any case, good point about the rugged build of the 1D line. Extended battery life is the other pro feature that most amateurs don't need.
Forum: Canon EOS Full Frame for HD February 11th, 2016, 04:43 PM
Replies: 26
Views: 26,933
Posted By Jon Fairhurst
Re: 5D4 Wish List

For fun, I looked at the timing of various Canon DSLR announcements:

August 2005 - 1D2 & 5D
May 2007 - 1D3
Sept 2008 - 5D2
Sept 2009 - 7D
Oct 2009 - 1D4
Oct 2011 - 1DX
March 2012 - 5D3...
Forum: Canon EOS Full Frame for HD February 11th, 2016, 04:22 PM
Replies: 26
Views: 26,933
Posted By Jon Fairhurst
Re: 5D4 Wish List

That's the rub, isn't it?

If the 5D4 does too much, it cannibalizes 1DX2 or EOS-C. If it does too little, the competitors leave it in the dust.

I predict the key difference between the 5D4 and...
Forum: Open DV Discussion February 11th, 2016, 03:30 PM
Replies: 11
Views: 2,969
Posted By Jon Fairhurst
Re: What is this Banding caused by?

1/120 or 1/60 are your best options.

Power cycles at 60 times a second, but there is a positive and a negative swing to the sine wave. Lamps generate light regardless of voltage polarity, so the...
Forum: Canon EOS Full Frame for HD February 10th, 2016, 04:28 PM
Replies: 7
Views: 11,986
Posted By Jon Fairhurst
Re: 5d mk3

Same story here on the 5D2 with ML RAW. We used it to shoot greenscreen and the images (though limited in size/resolution) were amazing. We could pull the most detailed keys and grade the image with...
Forum: Canon Cinema EOS Camera Systems February 10th, 2016, 02:09 PM
Replies: 8
Views: 3,465
Posted By Jon Fairhurst
Re: 1DC Audio Best Practice?

No rudeness perceived whatsoever. :)

Yes, the key to good DSLR video is to turn the gain to the minimum above zero to turn the analog noise in the camera as far down as possible. To make that...
Forum: Canon EOS Full Frame for HD February 10th, 2016, 02:03 PM
Replies: 26
Views: 26,933
Posted By Jon Fairhurst
Re: 5D4 Wish List

That's why I still haven't upgraded. At a certain point it's more about time, energy, inspiration, etc than about the tools.

Of course, if I was hired to create 4K documentary footage, I'd have...
Forum: Canon Cinema EOS Camera Systems February 9th, 2016, 11:38 AM
Replies: 8
Views: 3,465
Posted By Jon Fairhurst
Re: 1DC Audio Best Practice?

Good point about the batteries, Sabyasachi. I got in the habit of turning the preamp off immediately after each clip, which extends the life significantly. Phantom power is a big drain on all...
Forum: Canon EOS Full Frame for HD February 9th, 2016, 11:32 AM
Replies: 26
Views: 26,933
Posted By Jon Fairhurst
Re: 5D4 Wish List

I see the same. I've rented the Sony FS700, which is a fantastic camera for HD Slo-mo, but the look is slightly blue and the texture slightly harsh. Trying to grade it is like EQ'ing a so-so...
Forum: Canon Cinema EOS Camera Systems February 8th, 2016, 12:00 PM
Replies: 8
Views: 3,465
Posted By Jon Fairhurst
Re: 1DC Audio Best Practice?

Take a look at the juicedLink preamps. They're super clean, well-designed, and rugged. I've got the previous generation of models, so I can't comment on the specifics of Riggy line, but I expect that...
Forum: Canon EOS Full Frame for HD February 7th, 2016, 01:12 PM
Replies: 26
Views: 26,933
Posted By Jon Fairhurst
Re: 5D4 Wish List

Good point about needing to compete with the a7S ii. Assuming that the specs are in the same ballpark, some might choose Canon for lens compatibility without the need for an adapter.

FWIW, I once...
Forum: Digital Video Industry News February 4th, 2016, 12:14 PM
Replies: 31
Views: 10,962
Posted By Jon Fairhurst
Re: Official Canon Website Release EOS 1DX2

Well... there's the 14mm f/2.8 prime. That gets you a 19mm equivalent.

The Tokina 11-16 is f/2.8 and I believe that its image circle is a bit larger than ASP-C. In fact, at 16mm, my understanding...
Forum: Digital Video Industry News February 3rd, 2016, 05:36 PM
Replies: 31
Views: 10,962
Posted By Jon Fairhurst
Re: Official Canon Website Release EOS 1DX2

The width of the 4K image is 1/1.34 the width of the full frame image. This is similar to the APS-H size of an older generation of 1D cameras. That makes it a bit tough for ultra-wide angle shots. A...
Forum: Canon EOS Full Frame for HD February 3rd, 2016, 01:29 PM
Replies: 26
Views: 26,933
Posted By Jon Fairhurst
Re: 5D4 Wish List

Yeah, the GH4 and a7S II have put the 5D on the back foot.

Nice point about the 1DX and 5D3 having similar video capabilities. That gives me hope for the 5D4 not being left behind.

On CFast,...
Forum: Digital Video Industry News February 2nd, 2016, 03:58 PM
Replies: 31
Views: 10,962
Posted By Jon Fairhurst
Re: Official Canon Website Release EOS 1DX2

4K looks to be the ideal solution for DSLR video.

When DSLRs were first released, they skipped pixels to go from the ~20 MP sensors to the ~2 MP of HD. The aliasing was horrible. The 5D3 added...
Forum: Canon EOS Full Frame for HD February 2nd, 2016, 02:31 PM
Replies: 26
Views: 26,933
Posted By Jon Fairhurst
Re: 5D4 Wish List

Looking at the 1DX2...
http://www.dvinfo.net/forum/digital-video-industry-news/531066-official-canon-website-release-eos-1dx2.html

Built-in Wi-Fi is unlikely as it's an add-on module for the 1DX2...
Showing results 176 to 200 of 5353

 


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