The zoom big binocular is bak 7 porro prism, diopter adjustment, multi-coated and center wheel focus design
Logo can be printed, many colors available.
Objective Dia: 80mm
Exit pupil diameter varies from 4.4mm at 18X to 1.5m at 52X magnification.
Linear fields-of-view (@1000 yard/914.4m) vary from 132' (40.2m) at 18X zoom to 42' (12.8m) at 52X magnificationTransportation:*Shipping by EMS or international express, such as: DHL, UPS, TNT and FedEx( which are available for samples and small orders, it takes about 3-7days arrive, also called door to door servise. )
* Shipping by air. ( which is fast means, but charge higher, it takes about 3-7days arrive)
* Shipping by sea. ( which is safety and charge lowest, but it takes about one month to arrive)
Samples delivery time:
* Stock samples can shipping within 3 days.
* OEM samples takes about 7-15days.
Production time: Generally speaking, it takes about one month, but it depends on our production situation when you ordering.
We'd welcome the chance to cooperating with you.