So we have two statements: The better resolution defines the overall resolution, and (because of image quality reasons) the light sheet resolution has to be better than the objective lens depth resolution.
For an OCT imaging probe, the optical characteristics, i.e. working distance (focal distance from the surface of the GRIN lens), depth of field (twice of the Raleigh range), and spot size (waist diameter), directly determine the properties of imaging such as image location, depth, and resolution [ 26].
with my wide angle lens(deep depth of field) pre-focused at about 6 feet.
The nineteen-seventies sequences, too, are archival in their way, thanks to the seemingly heat-imbued cinematography of Ed Lachman, who reproduces the look of classic Kodachrome and uses what, to my eye, looks like telephoto lenses, compressing depth of field and crowding the frame to convey the moods of a more chaotic and clamorous New York.
In other words, the incidence of poverty does not change, no matter if one looks at it through the lenses of depth or through those of duration.
In comparison to spherical ultrasonic lenses the depth of field is wavelength independent.
Wide angle lenses exaggerate depth and motion toward or away from the camera; the effect they convey is dynamic and energetic.
Owing to the relatively high NA of the detection lens (0.3), the depth of field δ z is only ∼15 µm and does not span the depth of a typical sample in SPIM of ∼0.1-1 mm (Fig. 1).
If the velocity of ultrasound in ocular tissues is known, the A-mode ultrasound method may be used to determine the axial intraocular distances, such as anterior chamber depth, lens thickness, axial length of the vitreous and axial globe length, which are required for intraocular lens (IOL) power calculations.
To image the anterior segment from the front surface of the cornea to the back surface of the lens, a scan depth of at least 10 mm in air is needed, but the sensitivity will decrease when the scan depth increases using standard SD-OCT.
Often photographed with a wide-angle lens and extreme depth of focus in spacious rooms that dramatize their presence, these far-from-conventional nudescapes may have a grossly exaggerated arm, leg or other feature.
