Canon 16-35 2.8 on EPIC

[Thomas Church]

Anyone has tried this lens yet on EPIC?

At 16 is the FOV still considerably wide.

I'm dying to see some EPIC footage with still glass.

 

[Jannard]

Jarred and I both have EPICs with a Canon mount (we also have PL mount EPICs). The primary difference we can see to image quality is breathing.

Jim

Anyone has tried this lens yet on EPIC?

At 16 is the FOV still considerably wide.

I'm dying to see some EPIC footage with still glass.

 

[Ketch Rossi]

Breathing will remain an issue in Still Zoom lenses, however, I have also tested this many times, and few are those that can spot this artifact, as well as others,
so we are looking very much forward to the release of the RED Electronic Canon mount for Epic, as this will afford us a new found freedom of Autofocus shooting on Epic for Fashion shoots
and Doc style shoots, like never before, and with the power we have seen the RED Canon Electronic Epic Mount or REEM...

BTW Thomas, make sure is the series II, as it is day and night from the first run.

 

[Mark Toia]

I've got a Stabilized Canon 600mm F4 sitting on my table begging to be stuck on the EPIC!
It cries to me every night..... Mark.. fly to LA and steal Jims EOS mount...

Actually I can wait for the mount.. but play back is what I'm begging for.
120 FPS playback on set... yum!!!!!!!!

 

[Stefan Antonescu]

What is the crop factor with Canon lenses on EPIC ? I have been told 1.3 or 1.6...

 

[Ketch Rossi]

The change of field of view is 1.3.

 

[Stefan Antonescu]

The change of field of view is 1.3.

Thanks Ketch.

 

[Gavin Greenwalt]

Jim could the breathing be compensated for electronically?

If you know the FOV is going to shift slightly through the focus range could you create an inverse function to zoom proportionally? Or would that look funny?

 

[Joseph Hutson]

Jim could the breathing be compensated for electronically?

If you know the FOV is going to shift slightly through the focus range could you create an inverse function to zoom proportionally? Or would that look funny?

I'm not sure exactly what application you want to do this in, but that's what can happen on E3D's (soon to be released) 3D rig...

 

[Gavin Greenwalt]

I was thinking natively/transparently.

Hook up a characterized lens and have the mapped corrections stored in the firmware. As you rack focus have the zoom controller eliminate any breathing. Obviously wouldn't work with a prime but should work with a zoom right?

 

[Christopher Barrett]

On the Canon glass, I would expect that only the focus mechanism has a servo motor, not the zoom. I mean, there's no push button zooming on my 5d.... right? Something like this would have to be managed with a zoom motor mounted outside the lens, somehow controlled by internal electronics... theoretically possible.... but doubt it'll happen.

Unless my logic is flawed.... but I'm still on my first beer.

 

[Shane Betts]

Mapping of breathing to firmware would seem to be fraught. As I understand it each individual lens behaves a little differently and the characteristic can also change with collimation. Only one thing worse than a fault is a fault incorrectly corrected.

 

[Wolf]

Electronics will replace mechanics...

Electronics will replace mechanics...

What Gavin said. Broadcast-camera manufacturers have been using camera electronics to compensate for optical and mechanical lens deficiencies for many years. (Chromatic Aberration Compensation, Dynamic White Shading, etc, etc) There's no reason why electronic cinema-camera manufacturers shouldn't do something similar, with emphasis on cinema needs, of course (breathing being one issue). I would be very surprised if RED isn't already working on this with their electronic lens program...

 

[Gavin Greenwalt]

On the Canon glass, I would expect that only the focus mechanism has a servo motor, not the zoom. I mean, there's no push button zooming on my 5d.... right? Something like this would have to be managed with a zoom motor mounted outside the lens, somehow controlled by internal electronics... theoretically possible.... but doubt it'll happen.

Unless my logic is flawed.... but I'm still on my first beer.

No your logic is perfect, my memory is faulty. Good point on the lack of a servo haha.

 

[Steve Dent]

I've played with the 16-35 L 2.8mm on a 5D and the breathing is not too bad (on the copy I had). At 16mm it's not noticeable, at 35mm and f2.8, the worst case, it zooms ever so slightly as you focus closer. On a 5D, it's really not an issue, depending on the framing of the shot. On an APS-C, it's slightly more noticeable, but probably not a show-stopper.

 

[Art Chong]

I'm thinking that at 5k, you ought to have some room to do an animated scale/crop to compensate. Scale up on the wide, no change on the tight. You wouldn't technically "lose" the framing if you frame for the tighter part of the breathing instead of the wider part. The way I'm understanding it, this is basically what "electronic compensation" would mean anyway. This way affords you more flexibility in post and doesn't bake in the pixel drop.

edit: what I mean is to do the animated scale in post and leave the camera as it is, just to be clear.

 

[Burke Doeren]

To follow up on the idea of mounting Canon L-Series II lenses to an Epic, what exactly is the best mount so far? Obviously we are very excited for the RED EOS adaptor, but in the interim, are there any adaptors that allow control over the electronic aperture on these Canon lenses, including the 16-35mm 2.8L II? Handling the focus and zoom manually are perfectly fine with us, but the aperture control is crucial.

We have many Canon L-Series Lenses from our 5D Mk II setup, and would love to find a way to use them with a new Epic.

Any suggestions are highly appreciated.

Burke

Director of Pre & Post-Production
MindFox Productions, LLC
www.MindFoxProductions.com

 

[Tom Lowe]

The change of field of view is 1.3.

I wonder if it might actually be closer to 1.4? My 16mm Master Prime vignettes on my PL-mount Canon 1D4, but does not vignette at all on my Epic. Clearly, the active pixel area on the 1D4 is larger than the Epic.

The Canon EF 16-35II is sharp enough for the Epic, that's for sure. But with the crop factor, it's really not all that wide. Closer to a 20mm or maybe even 22mm FF35 stills equivalent.

I will be very excited to put a Nikon 14-24mm on the Epic, myself. And like Mark, I'm dying to put this 600mm f/4 Canon on the Epic!

I hope the Canon mount becomes available before my film wraps in a couple of months.

 

[Gabriele Turchi]

is the epic canon mount on sale ?

thanks


g

 

[Jeff Kilgroe]

Image area on the 1D4 is 27.9x18.6mm Max image area on the EPIC is 27.648x14.58mm.

No PL mount 1D4 around here to test with, but the [horizontal] crop factor between the two is 1.0009... If you crop to the same aspect ratio on the 1D4 as on the EPIC (1.89:1) or tighter, the 16mm MP is not going to vignette. But shooting full imager area on both, you will see the vignette kick in, as I do know the 16mm MP just BARELY covers EPIC 5KFF. Image circle to cover the sensor on the 1D4 is 33.54mm diameter. Image circle to cover EPIC 5KFF is 31.26mm. Your image circle needed to cover the 1D4 is 6.7% larger than what's needed to cover EPIC 5KFF... But we're also comparing two different aspect ratios, 1D4 being 3:2.

Tom, the 16-35EFII gives you the same FOV at 16mm on EPIC as the 16mm MP does. 16mm is 16mm. Crop factor between EPIC 5K and FF35 is 1.3. All your 16mm lenses on both the 1D4 and EPIC give you essentially the same AOV/FOV as a 21mm prime on FF35. If you want the same FOV on EPIC or your 1D4 as a 16mm gives you on FF35, you would need a 12mm focal length. the Tokina 11-16 is readily available and handles admirably, but nowhere near as sharp as that 12mm Master Prime. I don't know anyone who's had the 12mm MP on an EPIC or 1D4 or similar sized sensor. Actually, I don't know anyone, who's handled a 12mm MP... Presumably Matt Duclos has and he could probably give you a measurement for its coverage circle.

Nikon 14-24 on EPIC is glorious! ...Had the Ruby 14-24 (Nikon conversion) on mine last week.

Those Nikon and Canon mounts for EPIC can't get here fast enough!

is the epic canon mount on sale ?

Nope.