The largest lens opening (smallest f-number) at which a lens can be set. A fast lens transmits more light and has a larger opening than a slow lens.
The largest lens opening (smallest f-number) at which a lens can be set. A fast lens transmits more light and has a larger opening than a slow lens.
Open Monday - Friday: 9:30am-5:30pm
*Closed Saturday & Sunday*
Open Monday - Friday: 7:30AM - 3:30PM
*Closed Saturday & Sunday*