Distortions (1988) - distortions
If you own a Blink Outdoor (3rd Gen) camera, we recommend using the Blink Weather-Resistant 13ft IP55 Power Cable and Power Adapter Pack on Amazon.
Lateral vslongitudinal chromatic aberration
When power returns, your battery indicator for this camera will display the batteries as OK due to the USB power, but the batteries may be low or depleted.
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Use only size AA 1.5 volt lithium non-rechargeable batteries. The lithium batteries that are included with the Blink device do not have any capability of being recharged.
Longitudinal chromatic aberrationcauses
In particular, how do we identify the following image as primarily an example of spherochromatism and not longitudinal CA?
Longitudinal chromatic aberrationreddit
If your Sync Module is offline and your Wi-Fi is functional, your camera may continue to detect motion and record and upload clips for a short time period.
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Spherochromatism is simply the change in longitudinal chromatic by lens zone. Both aberrations are closely related. If you have a lens with longitudinal, there will be some change in color focus by lens zone (spherochromatism). The use of conventional optical glass in long lenses was not able to control either longitudinal nor the spherochromatism to a great degree. Stopping down the lens to avoid the poorly corrected marginal rays was necessary to attain an acceptable image. With the advent of low dispersion glass, both problems were nearly eliminated. I view spherochromatism as a subset of longitudinal chromatic. Fringing in the picture is from longitudinal chromatic. To say that an optic has spherochromatism, one must compare color focus of various lens zones (Paraxial, zonal and marginal). You would need 3 pictures; one for each lens zone to determine if the optic had noticeable spherochromatism.This cannot be determined in a single picture. The green fringing (mid spectrum) indicates that the chromatic is not lateral chromatic.
Longitudinal chromatic aberrationformula
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Transversechromatic aberration
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The USB port on the back of all Blink cameras can be used with a micro USB cable and adapter to power them, rather than using batteries. Plugging your camera into power adapter with a USB cable allows the batteries to not drain as quickly. This can be beneficial for cameras that are frequently used or capture motion or live view often.
Longitudinal chromatic aberrationexamples
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Sphericalaberration
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Note that transverse aberrations (the size of the spot in the plane perpendicular to the optical axis) behave differently than longitudinal aberrations. A topic for a different time.
If the camera is powered by USB with batteries installed and the power goes out, the camera will continue to run on the available battery power.
In lens design textbooks, a distinction is often made between longitudinal chromatic aberration and spherochromatism. (See for instance Kingslake's lens design book.) What is simple way to understand the difference? As far as I can tell, both involve the focal plane varying in distance from the lens as the wavelength of the light changes.
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Practically, it looks like your photo is of a tilted scale. The primary aberration is likely defocus. Again, from a practical point of view, it would be hard to tease out what is longitudinal chromatic aberration and what is spherochromatism. For one thing, it would help a lot to have images taken at different f/#s. (Since the spherical aberration varies with used f/#). I'm not saying it couldn't be done, but most people would measure the MTF at different colors and use that information. All of the aberrations get wrapped into the MTF, so it is an all-encompassing measure.
Lateralchromatic aberration
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If a USB power cable is used with the XT and XT2 outside, your camera is no longer weather-resistant when you remove the rubberized cover over the USB port.