microprism
noun
mi·cro·prism
ˈmī-krə-ˌpri-zəm 
: a usually circular area on the focusing screen of a camera that is made up of tiny prisms and that causes the image in the viewfinder to blur if the subject is not in focus
Cite this Entry
“Microprism.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/microprism. Accessed 4 Nov. 2025.
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