magnification

noun
1
the act of making something look larger
بزرگنمایی, بزرگ‌سازی, درشت‌نمایی
2
the degree to which something is made to look larger; the degree to which something is able to make things look larger
بزرگنمایی, درشت‌نمایی
a magnification of 10 times the actual size
high/low magnification
The telescope has a magnification of 50.