Napioa - Wind Origins

Napioa - Wind Origins
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6

Does sensor size impact the diffraction limit of a lens? No. Therefore, if the sensor is larger, and the photo-sites for the same resolution can also be larger, does this influence the diffraction limit of a lens? Not really. What it does affect is the sensor's (not the lens') diffraction limit. If so, how? If the size of the Airy disc ...


5

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 ...


3

No. Diffraction depends on the aperture and pixel size. The sensor size itself has no influence in the equation. A larger sensor as you say can have larger pixels but it can also have smaller ones. It really makes no difference when it comes to determining the diffraction limit.


3

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 ...


2

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 ...


1

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.


1

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 ...


1

The diffraction limit is the resolution where the Airy disks significantly overlap, completely independent of whatever they're falling on. But if that diffraction limit is at a higher resolution than the recording medium? Then for that aperture+lens+sensor combination you're sensor-limited, not diffraction limited. So sure, pixel resolution matters... sort ...


1

For ~ U$350 there's this: http://kodakpixpro.com/Americas/cameras/actioncam/sp360/ - 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 ...



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