The Astro Fi 90mm Refractor is a fully featured telescope that can be controlled with your smart phone or tablet using the free Celestron SkyPortal app. Celestrons SkyPortal app replaces the traditional telescope hand control for a 100% wireless experience. Just hold your smart device up to the night sky. When you find an object you'd like to view, tap the screen. Your Astro Fi telescope automatically slews to the object, while the screen displays information about it.

The Astro Fi 90 creates its own wireless connection, so it can communicate with your device even in remote locations where WiFi or cellular networks aren't available. Getting ready to observe is quick and painless thanks to Celestrons award-winning SkyAlign technology. Centre any three bright objects in the eyepiece, and your telescope calculates its position. You can even generate a Sky Tour of all the best celestial objects to view based on your exact time and location.

Specifications

Optical Deisgn: Refractor
Aperture: 90 mm 
Focal Length: 910 mm 
Focal Ratio: 10.1
Focal Length of Eyepiece 1 (mm): 25 mm 
Magnification of Eyepiece 1: 36x
Focal Length of Eyepiece 2 (mm): 10 mm 
Magnification of Eyepiece 2: 91x
Finderscope: StarPointer
Star Diagonal: 1.25"
Mount Type : Single Fork Arm Altazimuth
Accessory Tray: Includes rubberized smartphone or tablet holder
Tripod: Aluminum
Highest Useful Magnification: 213x
Lowest Useful Magnification: 13x
Limiting Stellar Magnitude: 12.3
Resolution (Rayleigh): 1.54 arc seconds arc seconds
Resolution (Dawes): 1.29 arc seconds arc seconds
Light Gathering Power (Compared to human eye): 165x
Optical Coatings: Fully Coated
Optical Tube Length: 37.2 in/94.5 cm in (945 mm)
Total Telescope Kit Weight: 14.2 lbs (6.44 kg)
Slew Speeds: Up to 3 deg/second
Tracking Rates: Sidereal, Solar, and Lunar
Alignment Procedures: SkyAlign, 3-Star Align, Solar System Align
Communication Ports: Aux port for optional hand control
Database: Over 120,000 objects including 220 of the best deep sky and solar system objects

Photo Express & The Photography Shop Delivery Information 

FREE Fedex Priority 24 & 48 Delivery to Zone 1 Areas

Carriage Free to England, Wales and parts of Scotland, excluding Highlands and Islands, Isle of Man, Northern Ireland & Isle of Wight

Isle of Wight (Postcodes PO30-41) = £20 Extra

Zone 2 = Highlands & Islands of Scotland = £20 Extra

(Postcodes IV, HS, KA27-28, KW, PA20-80, PH17-26, PH30-50, ZE)

Zone 3 = Northern Ireland, Isle of Man, Scilly Isles = £30 Extra

(Postcode BT, IM, TR21-25)

PLEASE NOTE FEDEX PRIORITY 24 NOT AVAILABLE TO SOME ZONE 1,2,3 & I.O.W ADDRESSES, THUS ALTERNATIVE SERVICE WILL BE USED.