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Canon XH Series HDV Camcorders
Canon XH G1S / G1 (with SDI), Canon XH A1S / A1 (without SDI).


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Old August 13th, 2007, 01:14 PM   #31
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Quote:
Originally Posted by Paul V Doherty View Post
Can you elaborate on the 180 degree rule? I've not heard of it
Here are some links on this google search:
http://www.google.com/search?client=...=Google+Search

Not sure the 180 rule applies to concerts, except when showing interaction between two musicians, a musician and the audience, etc.
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Old August 13th, 2007, 01:17 PM   #32
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Originally Posted by Paul V Doherty View Post
Most people seem to agree 25F and 25p look the same.... it sure beats interlaced!
The aim is to replicate the "unreal" look of film's 24fps 1/48 sec. shutter. Most people think this is part of the reason films look hyper-real or somehow seperated from our boring reality.
Get some concert DVD's and you will quickly notice the difference between those shot interlaced (they look like a news or sports broadcast) and those shot progressive or on film (they simply look like they have higher production values and the show looks better than it probably really was in reality).

I don't know about your particular camera... I own an XL2 and HV20 - both shoot true progressive.
From the XH A1 manual: 25F: "Records with 25 fps progressive." There have been some discussion if this really is 25p or Canon's "version" of it. I don't know. I guess I simply have to test 25F and 50i and compare. I'm not sure A1 makes true 25p - isn't that reserved for only the very best pro cams?

Do you mean that that glossy look of the image, with high contrasts disappears with 25F?

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Originally Posted by Paul V Doherty View Post
As far as gamma, chose a setting which stretches the blacks and has a low knee for a gentle compression on the highlights.
You can test this by filming a static scene with slight blowouts on the highlights and deep shadows - adjust your your gamma to maximise the detail in the shadows and minimise the area of the highlight blowout.
That would be BLK:STRETCH and KNE:LOW on the A1?

I'm not sure the gamma can be tuned other than set to CINE1 or CINE2 as you prev. recommended.

PS. I wonder why not all this (good) knowledge isn't collect by the Canon folks - "Canon XH A1 for Dummies" or similar ;) Any publisher reading this? ;)
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Old August 13th, 2007, 01:25 PM   #33
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Originally Posted by Jack Walker View Post
Here are some links on this google search:
http://www.google.com/search?client=...=Google+Search

Not sure the 180 rule applies to concerts, except when showing interaction between two musicians, a musician and the audience, etc.
Yes, prob. so. Filming a pianist from left and right would work according to the 180-rule if the line runs along the keys, but not if the line was along the axis of the piano. I guess that common sence has to be added to any rule.

However... Matrix... is there any rule valid when paning Neo and Mr. Smith;)
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