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Digital post-processing software provides means to correct converging verticals and other distortions introduced at image capture. Adobe Photoshop and GIMP have several "transform" options to achieve, with care, the desired control without any significant degradation in the overall image quality.
Prism dioptres. Prism correction is commonly specified in prism dioptres, a unit of angular measurement that is loosely related to the dioptre. Prism dioptres are represented by the Greek symbol delta (Δ) in superscript. A prism of power 1 Δ would produce 1 unit of displacement for an object held 100 units from the prism. [2]
Canonflex R2000 (1960) – An upgrade with 1/2000 shutter speed (up from 1/1000) Canonflex RP (1960) – simplified Canonflex without the interchangeable prism/viewer. Canonflex RM (1962) – A redesign of the RP with builtin metering and a lower profile prism. Offered with an f/1.2 58mm lens option.
Incomitant strabismus cannot be fully corrected by prism glasses, because the eyes would require different degrees of prismatic correction dependent on the direction of the gaze. Incomitant strabismus of the eso- or exo-type are classified as "alphabet patterns": they are denoted as A- or V- or more rarely λ -, Y- or X-pattern depending on the ...
Optical proximity correction (OPC) is a photolithography enhancement technique commonly used to compensate for image errors due to diffraction or process effects. The need for OPC is seen mainly in the making of semiconductor devices and is due to the limitations of light to maintain the edge placement integrity of the original design, after ...
Millennials and generations after will 'pay the full cost of fixing Social Security'. If Congress fails to act until 2035, the youngest member of Generation X will be 55 and will most likely be ...
In ophthalmology, horror fusionis is a condition in which the eyes have an unsteady deviation, with the extraocular muscles performing spasm-like movements that continuously shift the eyes away from the position in which they would be directed to the same point in space, giving rise to diplopia.
Prism-induced fixation disparity curves (prism FD-curves) can be characterized by the following parameters: the y-intercept refers to the naturally occurring fixation disparity without a prism (FD 0) the x-intercept gives the amount of a prism (P 0) that compensates a naturally
Where appropriate, prismatic correction can be used, either temporarily or permanently, to relieve symptoms of double vision. In specific cases, and primarily in adult patients, botulinum toxin can be used either as a permanent therapeutic approach, or as a temporary measure to prevent contracture of muscles prior to surgery
Camera lucida in use. A camera lucida is an optical device used as a drawing aid by artists and microscopists . The camera lucida projects an optical superimposition of the subject being viewed, onto the surface upon which the artist is drawing. The artist sees both scene and drawing surface simultaneously, as in a photographic double exposure.