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Department store 50 mm Tasco Specialty Refractor on modified mount (lower left) and a 114mm Sky-Watcher reflector. Tasco's telescopes have a reputation as entry-level equipment. [ 2 ] [ 3 ] It is one of several companies advertising their products based on claims of high magnification, far beyond any attainable usable magnification . [ 2 ]
A red dot sight is a common classification [1] for a non-magnifying reflector (or reflex) sight that provides an illuminated red dot to the user as a point of aim. A standard design uses a red light-emitting diode (LED) at the focus of collimating optics , which generates a dot-style illuminated reticle that stays in alignment with the firearm ...
Tasco is a major international distributor of telescopes. The company's line of products mainly target amateur astronomers but has grown to include many products besides telescopes. Tasco's other products include terrestrial spotting scopes, microscopes, binoculars, and telescopic sights and other rifle accessories. Tasco sells through ...
The T-mount is a standard lens mount for cameras and other optical assemblies. The usual T-mount is a screw mount using a male 42×0.75 (42 mm diameter, 0.75 mm thread pitch) metric thread on the lens with a flange focal distance of 55 mm and a mating female 42mm thread on a camera adapter or other optical component.
The PL-Mount is used both on Arri and RED digital cinematography cameras, which as of 2012 are the most used cameras for films shot in digital. The Panavision mounts are exclusively used with Panavision lenses, and thus are only available on Panaflex cameras or third-party cameras "Panavised" by a Panavision rental house, whereas the PL-mount ...
The M42 lens mount is a screw thread mounting standard for attaching lenses to 35 mm cameras, primarily single-lens reflex models. It is more accurately known as the M42 × 1 mm standard, which means that it is a metric screw thread of 42 mm diameter and 1 mm thread pitch.
An internal camera circuit connects the center contact and shoe mount to trigger the flash. The magnitude and polarity of the voltage between the contacts on the flash in the open-circuit condition has varied between different flash units; this is of no consequence for a simple electromechanical contact on the camera so long as the energy is ...
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