Specification Brand : Songzi Optics BulletPoint1 : 2.5X Loupes Field Of View: 150mm,Depth of field: 280mm, Working Distance 350mm -550mm,Weight: 45g. BulletPoint2 : 3X Loupes Field Of View: 140mm. Depth of field:200mm ,Working Distance 350mm -550mm,Weight: 50g. BulletPoint3 : 3.5X Loupes Field Of View:130mm.Depth of field: 200mm,Working Distance 350mm -550mm,Weight: 55g. Loupes view declination angle made as about 45 degree. BulletPoint4 : 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 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. Color : Customized Near Pd ExternallyAssignedProductIdentifier1 : 0091646335342 ExternallyAssignedProductIdentifier2 : 091646335342 ItemName : Songzi Optics 2.5X 3X 3.5X Optional Acetate Frame Through The Lens Surgical Loupes TTL Dental Loupes Customized (Magnification:2.5X, Customized Near PD) ItemTypeKeyword : professional-dental-and-surgical-loupes MagnificationStrength : 2.5 multiplier_x Manufacturer : Songzi Optical Co.,Ltd Material : Plastic ModelName : SZTTLACETATE2 ModelNumber : SZTTLACETATE2 NumberOfItems : 1 PartNumber : SZTTLACETATE2 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 : 2012-10-07T14:00:00.000Z Size : Magnification:2.5X SupplierDeclaredDgHzRegulation : not_applicable UnspscCode : 41111700