The 1990-4 Loupe with 4X magnifying power is specially designed to enable observers to simultaneously inspect the whole picture area of the standard micro-film size (i.e. 32mm x 45mm) or flat objects less than 58mm in diameter. The image observed through the loupe is critically sharp from the center to the edge of the image field, because of the careful optical correction of the loupe for the astigmatism and the curvature of the field as well as aberrations concerning the image of the central image. Ordinary magnifiers are corrected only for the central image. In this respect, this loupe is quite similar to anastigmatic photographic lenses, and is manufactured with the same care and precision.
One point which distinguishes this loupe from photo-lenses is that the position of the effective pupil of the loupe has been placed as far as 25mm above the upper pole of the loupe; so that an observer can inspect the whole image field by merely moving his eyeball, without moving his face. This is an extremely advantageous feature for a micro-filmer, because it enables him to inspect a number of negatives very speedily and comfortably.
| SKU | Μεγέθυνση | Διαθεσιμότητα |
Τιμή
+ΦΠΑ
|
Καλάθι
Προσφορά
|
|---|---|---|---|---|
| 1990-4 | 4x | 1 μήνας |
+ΦΠΑ
€220,00
|
Προστέθηκε στο καλάθι!
Template Standard 10x Ø35mm για λούπες 1983, 2028
Standard measuring plate for 10x Standard with scale markingsZero Center – 0 to ±10mm (1/2mm divisions)Crosshair at zero
Template 1 για λούπες 10x Ø35 mm 1983, 2028
Protractor 0-90° (1° intervals)Concentric Circles 1/2-10mm (1/2mm intervals)0 to ±10mm Scale (0.1mm divisions)0 to 0.4in. (0.005in. division), 0.02...
Δείτε πλήρεις λεπτομέρειες
Template 2 για λούπες 10x Ø35 mm 1983, 2028
0 to 0.5in. Scale (0.005in. divisions)Circles mm and in., AnglesConcentric Circles 0-10mm (1/2mm intervals)
Template 3 10x Ø35 mm για λούπες 1983, 2028
Thickness Lines 0.02- 0.16mm (0.01mm intervals)
Template 4 για λούπες 10x Ø35 mm 1983, 2028
0 to 10mm Scale (0.1mm divisions)10mm by 5mm SquaresCircles 0.05mm to 1.0mm diameter
Template 5 10x Ø35 mmγια λούπες 1983, 2028
0-0.5in. Scale(0.005in. divisions)Concentric Circles 1/16- 3/8in. (1/32in. divisions)
Template 6 10x Ø35 mm για λούπες 1983, 2028
0-90° (5° divisions)Concentric Circles 1/2mm- 10mm (1/2mm intervals)0 - ±10mm Scale, 0 to 0.3in. Scale, 0 to 3/8in. Scale
Template 7 για λούπες 10x Ø35 mm 1983, 2028
0 to 10mm (0.1mm division), 0.5mmSquares Circles 0.1mm - 2.5mm diameter
Template 8 10x Ø35mm για λούπες 1983, 2028
0-20mm Scale (0.1mm divisions)
Template 9 10x Ø35 mm για λούπες 1983, 2028
0-180° Scale 0-90° Scale (1° divisions)0-10mm Concentric Circles (1/2mm intervals)