Bird Watching Spotting Scope 15-45X50
Model Number: SE/15-45X50
Objective diameter(mm): 52
Front lens diameter: 73mm
Prism Type: Porro BK7
Eyepiece diameter(mm): 16
Exit pupil diameter(mm): 3.46-1.15
Lens Coatings: FMC-Blue
Relative Brightness: Index (RBI)11.5-1.7
Field of view(ft /1000 yds): ° 2.8-1.4
Eye relief(mm): 16-14
Focus Type: Worm
Minimum Focus Distance(M): 3
Twilight number: 28-48
Diopter adjustment: -4D~+4D
Net weight(g): 650
Dimensions of product: 220X73X90mm
*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.