pentaprism
Five-sided optical element
A pentaprism is a five-sided glass prism used in optical devices to deviate light by 90 degrees without inverting or reversing the image.
Found most commonly in single-lens reflex cameras, the pentaprism sits above the mirror and allows photographers to see through the viewfinder exactly what the lens sees, right-side up and correctly oriented.
Camera's composition window
- SLRMirror-based camera abbreviation
- DSLRMirror-reflex digital camera
- single-lens reflexCamera using mirror viewfinder
- cameraImage capturing device
framing · composition · focus · exposure · aperture · shutter · lens · film
Camera's composition window
- SLRMirror-based camera abbreviation
- DSLRMirror-reflex digital camera
- refractorLight-bending optical instrument
- eyepieceLens you look through
right-angle · lens · ocular · field of view · binoculars · periscope · optical · glass
Having five edges
Accuracy of measurement
- engineeringDesigning functional systems scientifically
- accuracyDegree of correctness
- toleranceWillingness to accept difference
- calibrationAdjusting for measurement accuracy
grinding · polishing · coating · alignment · quality control · specifications · fabrication · assembly
viewfinder
Camera's composition window
- SLRMirror-based camera abbreviation
- DSLRMirror-reflex digital camera
- single-lens reflexCamera using mirror viewfinder
camera · framing · composition · focus · exposure · aperture · shutter · lens · film · digital
viewfinder
Camera's composition window
- SLRMirror-based camera abbreviation
- DSLRMirror-reflex digital camera
- refractorLight-bending optical instrument
eyepiece · right-angle · lens · ocular · field of view · binoculars · periscope · optical · glass · transmission
five-sided
Having five edges
- polygonMultisided plane figure
- geometryScience of spatial relationships
- anglesRotation between intersecting lines
vertices · faces · polyhedron · solid geometry · cross-section
precision
Accuracy of measurement
- engineeringDesigning functional systems scientifically
- accuracyDegree of correctness
- toleranceWillingness to accept difference
calibration · grinding · polishing · coating · alignment · quality control · specifications · fabrication · assembly · silvering
prism, prismatic, pentagon, prisms, pentameter, pentathlon, pentagonal, Pentateuch, pentahedron