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-   -   The Canon 7D is Actually Closer to 35mm Film Size that the 5D (https://www.dvinfo.net/forum/canon-eos-crop-sensor-hd/348412-canon-7d-actually-closer-35mm-film-size-5d.html)

Charles Papert September 2nd, 2009 12:21 AM
Dan, thanks for correction, of course it is APS-C, not APC. I had one of the Canon Elph's when they first came out (the short-lived APS film format). Seemed pretty slick at the time for a pocket camera--how much has changed in 12 years!

Steen Johannessen September 16th, 2009 04:11 PM
Image stabillization
 
Is the Image stabillization on the canon lenses any good when in video mode on the MarkII or 7d?

Quote:
Originally Posted by Charles W. Hull (Post 1299131)
I can attest that the 17-55 f/2.8 IS is an outstanding lens. I have one for my 50D and look forward to using it on a 7D. It is L lens quality, very sharp, with image stabilization and it will focus quite close, nearly macro.

Jean-Philippe Archibald September 16th, 2009 04:17 PM
I am working right now on a feature with the 5d Mark 2 and the 24-105 f4 IS almost exclusively and I can tell you that the IS system works perfectly well in video mode.

Jon Fairhurst September 16th, 2009 05:27 PM
Of course, the IS motor can be heard through the internal mic. The solution is to use an external mic. And that means using Magic Lantern Firmware (on the 5D2, but not the 7D, at this point) and a preamp, or an external recorder. The internal mic will pick up manual focusing noise as well.

6. Canon 5D Mark II Audio Exposed - Conclusions on Vimeo

Michael Maier September 23rd, 2009 03:44 AM
Quote:
Originally Posted by Bill Pryor (Post 1298646)
The problem with smaller chips like APC is in getting wide enough lenses. A 24mm lens on the 5DMKII is...a 35mm lens, just like on a film still camera. On an APC size it goes up by 1.6 and is a little longer than a 35mm lens.

I thought the APC size was very close to the 2/3" chip size or to 16mm size. I wish the chart had those laid out.

To get that shallow depth of field lots of people seem to want, you're going to have to track down some very fast lenses. None of the zooms open up past f2.8 at full wide angle and most stop down more at longer lengths.
But Bill, this should not even be an issue here as the Canon 7D has almost the exact sensor size as S35 and it has not been a problem at all to get shallow dof or wide lenses with S35 production for years.

Dan Chung September 23rd, 2009 03:57 AM
Michael,

What you say is true - the sensor size is the same, problem is the lack of fast wide angle lenses on the 7D. There are plenty of fast wides for cine cameras. For now that makes Cine DOF look on a wide easier on a 5DmkII. For standards and tele lenses I think the 7D is well catered for.

Dan

Bill Pryor September 23rd, 2009 10:22 AM
That was my point. You need faster lenses. Maybe Canon will start making fast cine lenses. Or somebody will come out with adapters. Of course there are a number of fast Canon lenses out there, 1.8, 1.4, etc. Just not the zooms.

Chris Hurd September 23rd, 2009 10:46 AM
Quote:
Originally Posted by Bill Pryor (Post 1388446)
Maybe Canon will start making fast cine lenses.
They already do: Canon HD-EC FJs Prime Lens Series

Evan Donn September 23rd, 2009 11:06 AM
Quote:
Originally Posted by Chris Hurd (Post 1388557)
Yes, they do... but those are for 2/3" cameras. And the full 6 lens set will run over $100k... so I'm thinking those aren't really for the same market as the 7D.

Bill Pryor September 23rd, 2009 01:07 PM
Yeah, when I think "cine lenses" I think 35mm motion picture camera lenses. With the right mounts available, you could rent lenses when necessary if you're in a city with a cine equipment house.


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