give at least three reasons why technicolor's three-strip color system was at first too costly.

These Cameras, as well as the skilled technicians, were in very less number, and a certain studio was able to develop only 8 technicolor films in one year to the maximum. Also, it required an enormous quantity of light, and the cinematographers need to be hired. And all this required a huge sum of money.

And hence the three reasons are: Very less number of films can be made in a year, an enormous amount of light was required, and it required the hiring of cinematographers.

Thus, these were the three main reasons.

Explanation:

Please check the answer.

answer(a) occurs after your prediction;