It's "a pair of binoculars". Since "binoculars" is a plural noun, you cannot use "a" before it.
It's "a pair of binoculars". Since "binoculars" is a plural noun, you cannot use "a" before it.
I have to buy a pair of binoculars.
I have to buy a binoculars.
Follow the same convention with the synonym "field glasses".
You can find a pair of field glasses in the drawer.
We never use “a” before "binoculars" or "field glasses" because “a” is for one, and these nouns only has a plural form. But, as mentioned above, you can use the determiner "a pair of" to refer to a single item.
She only has a pair of binoculars.
You can use a pair of field glasses to see distant objects more clearly.
To count these objects, use the expressions "two pairs of binoculars", "three pairs of binoculars", etc.
Peter bought two pairs of binoculars yesterday.
Alternatively, you can use other determiners for plural nouns ("the", "some", "any", "these", "both", "most", etc.)
Some binoculars are designed for military usage.
And remember, plural nouns, like "binoculars" or "field glasses", require a plural form of a verb. In other words, we say "binoculars are" (not "binoculars is").
These binoculars are great!
This binoculars is great!
Follow the same convention of omitting a/an with these objects: