The number that I have seen has nothing to do with making them. I may have seen thousands but, not being aware of the distinction, I cannot report a number.
Area cannot be measured in mm. So an area of 50mm cannot exist and therefore, there can be no answer to this question.
good question you should find out and tell me
It is: 50mm = 5cm
Canon makes the best 50mm camera lens, known as the EF 50mm f/1.8mk2, 50mm f/1.4 USM and 50mm f/1.2L lenses
50mm from 0.14mm = -49.86mm
50mm converts to 0.05m (multiply millimeters by 0.001)
50mm drivers could be loudspeakers. (Tweeters)
168cm add 50mm = 218
10mm = 1cm 50mm = 5cm
A 50mm lens has a diopter of 20.
Between 50mm and 6cm, the later would have the greater length. That is because 50mm is only equal to 5cm.
33-50mm offset in inches = -17