Specification Brand : MOTIC BulletPoint : The GCE takes a different approach to Wideband LPR filters by employing a "Notch" design which excludes all the bad stuff, from 540 - 590 nm, while allowing the rest of the visible spectrum to transmit over 90%. This results in a "wideband filter" that provides a slightly brighter image than traditional single band filters which reject most red light. The GCE excels as a general contrast booster with an absolute minimum of star dimming, and really enhances dark material in the milky way, and even adds some degree of improvement for galaxies. They are also an excellent match for binoculars and the low power-per-inch they offer. And as with all DGM Optics filters features super durable Ion Assisted Plasma Coating Technology. BulletPoint1 : Interpupillary distance adjustment between 48-75mm; Vertical travel range 20mm BulletPoint2 : Widefield eyepieces N-WF10X/20mm with diopter adjustment on both eyepieces BulletPoint3 : Reversed quintuple nosepiece with click stops for precise magnification changes BulletPoint4 : CCIS EF-N Plan Achromatic objectives 4X/0.10, 10X/0.25, 40X/0.65 – Spring, 100X/1.25 – Spring/Oil BulletPoint5 : Coaxial coarse and fine focusing system with 2 micron minimum increment with tension adjustment ExternallyAssignedProductIdentifier : 4047825012630 ExternallyAssignedProductIdentifier1 : 4047825012678 ExternallyAssignedProductIdentifier2 : 04047825012678 GpsrSafetyAttestation : 1 IncludedComponents : Frosted Filter ItemName : Motic 1101001903271, Frosted Filter for EPI Illuminator ItemPackageDimensions_Height : 9.5 inches ItemPackageDimensions_Length : 11.5 inches ItemPackageDimensions_Width : 8.5 inches ItemPackageQuantity : 1 ItemTypeKeyword : telescope-filters Manufacturer : Motic ModelNumber : 1101001903271 NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : 1101001903271 PhotoFilterEffectType : Enhancing ProductDescription : Filter New ProductSiteLaunchDate : 2020-12-14T10:38:09.810Z SupplierDeclaredDgHzRegulation : not_applicable UnspscCode : 41111700 WaterResistanceLevel : not_water_resistant