Napioa - Wind Origins

Napioa - Wind Origins
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For ~ U$350 there's this: - Video and Photos, F2.8 Lens. One Camera does 214°, but you can buy two and the link themselves for 360° VR. We need to know your Budget if you want pricey answers. That Camera shoots: Still, Burst Shot, Movie, Time Lapse, Loop Recording, & has WiFi - with WiFi you can ...


Disadvantages, well speed and potentially (depending on the distance needed) the TECHART PRO may run out of space making some lenses focus extremities unavailable. Larger heavier lenses may be to heavier for the focus as well. Overall however it's a very interesting concept, with very few real downsides.


In answer to your question about specific cameras, the only models I can recall seeing with an external aperture in front of the lens are a few of the oldest Kodak Autographics and Kodak Vest Pocket Cameras from approximately 1913-15 that featured a 'meniscus achromat' lens.. Here's an example of some.. When I first saw these, I assumed the front element ...


See textbook “Optics The Technique of Definition” by Arthur Cox 1945. Excerpts from: The fact that different parts of the lens of the glass is used when the stop is in front of the lens, from that that is used when the stop is ---- the aberrations are different ------ this is the utmost importance in establishing a lens constriction that will give good ...


This is not a true answer, but an expansion on calculating diffraction patterns from @whuber's answer. First, we have the diffraction integral. The function Up describes the complex amplitude in the observation plane at a distance (xp, yp) from the optical axis, and a distance Lz from the source (some kind of diffractive object, e.g. pinhole, camera ...


Here is an example and personally, I love the effect. It can add a bit of artistry to the photo as in the one I will link to. The cause is due to the aperture blades on my nifty 50mm. Exposure is a secondary to the stars because I have to close the aperture in order to not overexpose the photos with all the bright lights I am shooting into. If I ...


The model specifies a mapping from an ideal picture on a rectangular grid where the scene is projected in a rectilinear way to a distorted picture on another rectangular grid. It tells you where the pixels that should have appeared at some coordinate (x,y) can be found in the distorted image that you actually have. The problem is then that the gray values ...


The assumption that aspheric lenses create "abnormal" projections is incorrect. There is nothing "normal" in normal spherical lenses, except that we can produce them cheaply. You don't get rectilinear projection just because you used spherical lenses, you have to struggle for accurate rectilinear projection (if that's your goal). Pinhole is automatically ...


By the shape, density, and refractive index of each lens element as well as the physical relationship between each element to the others in the lens. In short, it depends on the lens' design. Here is a Canon EF 15mm f/2.8 fisheye (left), an EF 14mm f/2.8 L (right), and an EF 14mm f/2.8 L II (bottom) block diagram: Notice the difference in the shape of ...

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