National 420 Series
The convenience and versatility of viewing a large picture at 10x magnification, then zooming continuously all the way to close-up detail at 40x magnification. Upright, unreversed 3-dimensional image remains in focus throughout zoom range. Optional eyepieces and auxiliary objectives expand magnification range and working distances.
Features top light with directional beam, bottom light with cool, long-life fluorescent illumination.
420 Series Options420-430PHF-10:Inclined WF10X Eyepieces,Post Stand, 1xto4x (10x thru 40x Mag.),T(H) & B(Fluor) Illum.
420-430PHF-15:Inclined WF15X Eyepieces,Post Stand, 1xto4x (15x thru 60x Mag.),T(H) & B(Fluor) Illum.
420-420AHF-10:Inclined WF10X Eyepieces,Fixed Stand,1xto4x (10xthru 40x Mag.),T(H) & B(Fluor) Illum.
420-420AHF-15:Inclined WF15X Eyepieces,Fixed Stand,1xto4x (15 thru 60x Mag.),T(H) & B(Fluor) Illum.
420-1105-10: Inclined WF10X Eyepieces, Universal Stand, 1x to 4x (10x thru 40x Mag.), No Illumination.
420-1105-15: Inclined WF15X Eyepieces, Universal Stand, 1x to 4x (15x thru 60x Mag.), No Illumination.
420-1107-10: Inclined WF10X Eyepieces, Post Stand, 1x to 4x (10x thru 40x Mag.), No Illumination.
420-1107-15: Inclined WF15X Eyepieces, Post Stand, 1x to 4x (15x thru 60x Mag.), No Illumination.
420 Series Components & Accessories
498-420-10: Stereo Zoom Head Only. 10X to 40X zoom, w/ WF10X Eyepieces. No Focus Block
499-000: Focus Block (Fits 25mm mounting post)
499-420AHF: Stand w/Focus Block, Fixed Arm w/ T(H) & B(Fluor.) Illum.
499-430PHF: Stand w/Focus Block, Post Mount w/ T(H) & B(Fluor.) Illum.
499-1105: Universal Stand w/ Focus block, No Illum.
499-1107: Platform Stand w/o Focus Block, No Illum.
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National 420 Series OptionsNational 420-430PHF-10: Inclined WF10X Eyepieces, Post Stand, 1x to 4x (10x thru 40x Mag.), T(H) & B(Fluor) Illum., National 499-1105: Universal Stand w/ Focus block, No Illum., National 499-430PHF: Stand w/Focus Block, Post Mount w/ T(H) & B(Fluor.) Illum., National 499-420AHF: Stand w/Focus Block, Fixed Arm w/ T(H) & B(Fluor.) Illum., National 499-000: Focus Block (Fits 25mm mounting post), National 498-420-10: Stereo Zoom Head Only. 10X to 40X zoom, w/ WF10X Eyepieces. No Focus Block, National 420-1107-15: Inclined WF15X Eyepieces, Post Stand, 1x to 4x (15x thru 60x Mag.), No Illumination., National 420-1107-10: Inclined WF10X Eyepieces, Post Stand, 1x to 4x (10x thru 40x Mag.), No Illumination., National 420-1105-15: Inclined WF15X Eyepieces, Universal Stand, 1x to 4x (15x thru 60x Mag.), No Illumination., National 420-1105-10: Inclined WF10X Eyepieces, Universal Stand, 1x to 4x (10x thru 40x Mag.), No Illumination., National 420-420AHF-15: Inclined WF15X Eyepieces, Fixed Arm Stand, 1x to 4x (15x thru 60x Mag.), T(H) & B(Fluor) Illum., National 420-420AHF-10: Inclined WF10X Eyepieces, Fixed Arm Stand, 1x to 4x (10x thru 40x Mag.), T(H) & B(Fluor) Illum., National 420-430PHF-15: Inclined WF15X Eyepieces, Post Stand, 1x to 4x (15x thru 60x Mag.), T(H) & B(Fluor) Illum., National 499-1107: Platform Stand w/o Focus Block, No Illum.