hyalinejim
Well-known member
With the caveat that you lose 1/3 stop of highlight information, if I recall correctly.
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With the caveat that you lose 1/3 stop of highlight information, if I recall correctly.
You might already know this, but it does no harm to repeat it for those that do not know.
Where did you get those lens caps? Did they come with the 80mm step up fronts?
Thanks!
In response to the original thread, I have been testing the 5D on some in-house doc projects and whatever rig setup and lenses you use you have to practice using this camera. It is anything but point-and-shoot.
Problem number 1: Focus, especially at low aperture, is a *****. You need to magnify the LCD somehow to achieve focus at narrow f-stops. The magnify button on the back of the camera works great, if your not recording. If your subject moves or you need to change focus while recording, this button is inactive. An HD field monitor works well enough, but since the HDMI output signal changes as soon as you hit the record button (no more HD output), it's still possible to miss the focus. When going handheld, I use a custom made (DIY) shoulder rig and 4x reading glasses (I need 1.5x reading glasses normally). Some people like the Z-finder, but it's pricey. You have to experiment to find what works for you.
Problem 2: Frame rate is true 30fps. I don't care too much that I can't get 24p yet, but the non-drop frame issue is a pain. Let's hope the new firmware addresses this. This is not a problem if you do not intend to broadcast your work, of course.
Problem 3: Internal audio is useless, and you need to install Magic Lantern to turn off AGC. But then you need a preamp of some kind, which just makes your rig more complicated. And I don't like Magic Lantern. As powerful as it is, it's a beta software hack, and it has its problems.
Problem 4: Canon EF lenses are not made for video. As someone else mentioned, with these lenses you should use a vari-ND filter to control the exposure (and shoot in manual mode). This is one more level of complexity while shooting. You can use auto mode, but you won't be able to control the aperature and shutter speed as well (in this mode the camera gives first priority to aperture, next to shutter, last to ISO), and if the camera decides to change aperture while recording (with these lenses) it will drop 3 frames. This is one reason why many people shoot with Nikon or Ziess primes. AND, the focus ring on manual primes works backwards from the ring on the EF lenses, just one more level of complexity.
I find that I am constantly struggling between simplicity and versatility with this camera. I have given serious consideration to just going back to an EX1 or similar, but I am starting to believe that I can overcome these problems with enough practice. I have a still photo background and I love the look of the 5D image, so for me it may be worth the trouble. But if I need to have someone else operate the camera on a project, I'll probably break out the EX1.
You might already know this, but it does no harm to repeat it for those that do not know.
On the 5D MkII (I can's speak for the 7D) . . . .
ISO 160 is cleaner, more noise free than ISO 100.
ISO 640 is cleaner, more noise free than ISO 400.
As counter intuitive as it sounds there are ISO/Noise sweet spots in the 5D's ISO range due to the way in which it generates it's ISO range, using a lower ISO does not always increase quality and often adds more noise (as well as lowering sensitivity).
Of course you may simply wish to use ISO 100 for technical reasons - but if you have the scope to do so then increasing the ISO to the next highest ISO that is in the sweet spot range of ISO settings actually improves picture quality.
This is the list of sweet spots - (if you find yourself at an ISO not on this list - then increasing the ISO to the next highest ISO setting on this list will improve picture quality (lower noise).
160
320
640
1250
2500
5000
So if you are at ISO 800 - going to 1250 will improve picture quality ! (really !!)
Lee.