Specification Brand : Songzi Optics BulletPoint1 : 2.5X Loupes Field Of View: 150mm,Depth of field: 200mm, Working Distance R(300mm -500mm), L(450mm-650mm). BulletPoint2 : 3X Loupes Field Of View: 140mm. Depth of field:200mm ,Working Distance R(300mm -500mm), L(450mm-650mm). BulletPoint3 : 3.5X Loupes Field Of View:130mm.Depth of field: 200mm, Working Distance R(300mm -500mm), L(450mm-650mm). BulletPoint4 : Please choose working distance, then send message in the order, if you are siting while wearing loupes, we recommend Working Distance R(300mm -500mm), if you are standing while wearing loupes, we recommend Working Distance L(450mm-650mm). BulletPoint5 : If your Near Pupil distance is not included into loupes variations, please choose Customized Near PD, and leave your Near interpupillary distance in the message and we will customize it according to your size. BulletPoint6 : Buyer can use PDCheck AR APP on phone, and save PD data screenshot, there are Far PD and Near PD. you need to choose Near PD variation when place order Color : Near Pd 56mm ExternallyAssignedProductIdentifier1 : 0758358770532 ExternallyAssignedProductIdentifier2 : 758358770532 FdaDeviceClassification : i FdaIndicationOfUse : otc_and_rx FdaInstructionsForUseType : consumer FdaLabelType : consumer ItemName : Songzi Optics 2.5X 3X 3.5X Optional White Titanium Frame TTL Dental Loupes Through The Lens Surgical Loupes Customized (Magnification:2.5X, Near PD 56mm) ItemPackageDimensions_Height : 7 inches ItemPackageDimensions_Length : 9 inches ItemPackageDimensions_Width : 8 inches ItemPackageQuantity : 1 ItemTypeKeyword : professional-dental-and-surgical-loupes MagnificationStrength : 2.5 multiplier_x Manufacturer : Songzi Optical Co.,Ltd ModelName : SZTTLTITANIUM ModelNumber : SZTTLTITANIUM NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : SZTTLTITANIUM ProductDescription : Songzi Optics SZTTL series has long working distance, Wide Field Of View,very comfortable to work with. LED illumination system are available.Multi-layer anti-reflection coating provides extremely high resolution.Anti-glare, scratch-resistance optic lens ensure long time no-trouble use. Helping to reduce eyestrain,By cringing your patients closer,You can improve your posture and avoid stooping. Multiple magnification levels loupes offer performance matched to your requirements.Multiple magnification levels enable you to see more,spot problem earlier and offer even higher levels of precision treatment. Exclusive Telescope Design with Precision Coated Optics.Custom Manufactured to Your Unique Measurements.Including angle of declination and working distance, providing you with the best visual and ergonomic system available. ProductSiteLaunchDate : 2012-10-08T04:00:00.000Z RequiredProductComplianceCertificate : No Size : Magnification:2.5X SupplierDeclaredDgHzRegulation : not_applicable UnspscCode : 41111700