« on: April 29, 2014, 08:38:01 PM »
Seems rather reasonably priced with the Li battery pack. Thanks!
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Wouldn't you also end up having to deal with a significant drop-off in number of photons hitting the photo-diodes? After all, you're essentially turning one 'pixel' site into 3 sub-pixels, none of which covers the entire area of the 'pixel'. Not that I don't want them to try innovative new things like that, but I don't think it's practical except for maybe some specialized applications.
I don't know if you'd lose any additional light. Right now, there is a color filter immediately covering two diodes. If you had two smaller color filters adjacent to one another, you aren't going to halve the light, though you may move it around. Rather than "all light hitting here is red", it would be "some of the light hitting here is red and some of it is green," and they would have varying intensities. I think.
Laptops and cell phones eat batteries during testing, too. Whenever you're working with software, there's a good chance you're going to have bugs that cause excessive CPU utilization. Any time the CPU is doing work, it is consuming a lot more power than when it is idle. It only takes a tiny bit of activity every few milliseconds to seriously impact power consumption by preventing the CPU from ever reaching an idle state.
Hopefully, those bugs get fixed before the thing ships, but it isn't at all uncommon to have them during development. I'd be really surprised if anything other than the CPU were responsible for the high battery drain.
Well, Intel's CPUs generally use less power than AMD's CPUs.
I think you're referring to what they call triple-CCD (or three-chip) cameras in the video world, right? I've wondered about that for a long time, too, but don't know about how practical it is in terms of size for an SLR. I know the pro video cameras had them for many years (and still do?) as they were supposed to produce better color and be better in low light.
Have you tried using AI servo in low light? Wouldn't it have been nice to have your AF point illuminated in red so you can actually see what your focussing on? Without the illuminated AF points, AI servo would be crippled in low light for me.You sound quite certain about that…I'm not so sure.
There's no reason why this feature shouldn't trickle down to the 5D, or spot metering tied to AF points given the fact they share nearly identical AF systems.
For AF point illumination in AI Servo, as I understand the issue, the problem is that the the light which illuminates the AF points also affects metering. In prior 1-series bodies, the illumination wasn't an issue, since the light was at a different angle to illuminate the AF points etched in the focus screen, compared to the points displayed on the transmissive LCD. It's not a problem in One Shot, as metering is done once. But in AI Servo, metering is done continuously, along with AF. The solution for the 1D X required that the illumination blink on and off, but I also suspect it may involve altering the way the data is read from the metering sensor, so the data from the red channel are eiher ignored or given less weight. That would be possible with the RGB metering sensor of the 1D X, the 5DIII doesn't have an RGB metering sensor.
Regarding AF point-linked spot metering for the 5DIII, while the AF systems are nearly the same as you state, the metering systems are vastly different. Here are the 61 AF points superimposed on the 5DIII's 63 zone iFCL metering grid:
The resolution of the 5DIII's metering sensor simply may not be high enough to support spot metering with the AF points, whereas the 100,000 pixel metering sensor of the 1D X can do so. Even when the 1D X's metering sensor reverts to zone metering (in very dim light or for flash exposure metering), it's divided into 252 zones - 4 times the density of the 5DIII's metering sensor.
I can't say for sure that those tecnhical limitations are absolute, but you might consider the possibility that there are technical reasons for those features being available on the 1D X but not on the 5DIII. After all, they did add f/8 AF to the 5DIII.
And I'm afraid Kodachrome processing has gone the way of the Dodo. I believe it is possible to development as a black and white negative but that is hardly what you want.
Do the experts here think the overall land speed of the unicorn will match or at least come close to that of the dodo?
It looks like lots of people got good images. It started out hazy here, and degenerated into a overcast, so I gave up. The night before was clear.