focal length 400mm astronomical refracting telescope

{"cid":"91091321","title":"Focal Length 400mm Astronomical Refracting Telescope CE OPTO-EDU","imgUrl":"https:\/\/img.chinax.com\/nimg\/54\/53\/7121c07e96854fe8e17f047c5b90-200x200-1.jpg","attrs":{"Price":"$1-$1000","Brand Name":"OPTO-EDU","Model Number":"T11.5611","Minimum Order Quantity":"1","Delivery Time":"1month","Certification":"CE","Place of Origin":"China","Payment Terms":"T\/T,West Union and Paypal","Supply Ability":"10000","Packaging Details":"Carton","Type":"Refraction","Lens Clear Aperture":"70mm","Focal Length":"400mm","Eyepiece":"Dia.31.7 K10mm, K25mm"}}

{"cid":"91199509","title":"Mount Astronomical Refracting Telescope Portable Travel Telescopes 600MM Focal Length","imgUrl":"https:\/\/img.chinax.com\/nimg\/79\/e3\/412066ba907b168013c10f4335a2-200x200-1.jpg","attrs":{"Price":"Negociation","Brand Name":"YBoptics OEM\/ODM","Model Number":"Telescope 102600","Minimum Order Quantity":"1 PCS","Delivery Time":"3-30 days","Certification":"CE FCC ROHS","Place of Origin":"Sichuan, China (mainland)","Payment Terms":"L\/C, D\/A, D\/P, T\/T, Western Union, MoneyGram, Paypal","Supply Ability":"30000 PCS per month","Packaging Details":"Custom","Objective lens diameter":"102mm","Focal length":"600mm","Eyepiece":"1.25 inch","Lens coating":"FMC","Focal ratio":"f\/5.9","Barov extender":"2X FMC","Zenith Mirror":"90\u00b0 full erect image","Barov Extender":"2x","Bracket":"Theodolite","Main Material":"optical glass, aluminum, iron, plastic","Storage Conditions":"\"should be stored in a sheltered, dry place, no acid gas, alkali and harmful substances around\""}}