Napioa - Wind Origins

Napioa - Wind Origins
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22

Is there really no way automate a DSLR to shoot every 24 hours without having to pick it up, charge/replace its battery, and put in back on the same spot ? Canon and Nikon cameras can be connected to AC power by means of an adapter that fits in the battery slot. For example, Canon DSLRs that take an LB-E6 battery (like the 5D II, 6D, and 7D) can use an ...


5

No, cameras can not be powered by a USB port because they typically require more than The 5 volts maximun available from the USB port.


3

Whether this is where you found it or not, the definition you give for "Unity Gain ISO" comes from the Clarkvision web site's section on digital sensor performance. As an updated version of that page explains, it's a silly concept. To quote: The fundamental reason Unity Gain is not relevant is because the sensor in a digital camera is an analog system, ...


2

Both approaches are correct. At least as I understand what I think you are trying to say. I'm not sure, though, what you mean by, "(4 time bigger)". Raw luminance values are monochromatic in the sense that there is only one intensity value for each sensel (what we call a pixel well). But every one of those monochromatic luminance values is the result of ...


2

Short Answer: No, I do not believe you can force the camera's spot metering point (which is the focusing array's central focus point, proved below) to become visible while spot metering and using the auto-area AF mode. To find out more about how I came to this conclusion, continue reading. Long Answer: I was recently wondering how spot metering worked with ...


1

Unity gain is such ISO number at which camera outputs pixel values roughly equal to numbers of electrons in cells. Native ISO is such ISO value at which the maximum number of electrons in cell is matched to saturation point. It is almost always division instead of multiplication for sensors with big enough electron capacity per cell. Native ISO is as unique ...


1

Many DSLRs have external power jack (it is often cylindrical, like those which are used in laptops). Some others might use an AC adapter which fits into the battery compartment. Most DSLRs cannot be powered through their USB port (in fact, I have not seen any that can).


1

From the D7000 manual page (link to manual), you can read page 105 : Spot: Camera meters circle 3.5 mm (0.14 in.) in diameter (approximately 2.5% of frame). Circle is centered on current focus point, making it possible to meter off-center subjects (if non-CPU lens is used or if auto-area AF is in effect, camera will meter center focus point). Ensures ...


1

Why do SLRs and DSLRs use different flash gels? They don't. I have heard that the full CTG works well with film SLR, but something about the color sensitivity of DSLR means that they require ½CTG instead, and likewise for ½CTO. Is that correct? No it's not about the sensor vs film. Different film did however had some slight colour renditions ...


1

This thread appeared when I searched whether sensors lose their sensitivity . . so FWIW my lovely 10 year old high-end compact camera (CCD sensor) still shoots correctly exposed pictures but then quotes abnormal f stop/shutter speed combinations for the fixed ISO in the EXIF info. I've checked back on my earlier pictures and then the quoted exposure ...



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