Окуляр Bresser WF 15x/30,5 mm ICD

<p>The 10x eyepiece is suitable for <strong>all microscopes with 23.2mm eyepiece tube diameter</strong>. This diameter is widely used in stereo microscopes, also from other brands or manufacturers. Please select the <strong>eyepiece magnification in correspondence to the objective</strong> you are using. A low objective magnification allows for a higher magnification of the eyepiece. For example, combined with 4x or 10x objectives, eyepieces with 20x or 25x magnification can be used without loss of image quality. With a 100x objective, a 10x or 12.5x eyepiece is usually the highest recommended eyepiece magnification.</p> <p>To calculate the <strong>maximum useful magnification</strong>, consider the numerical aperture (N. A.) of the objective lens:</p> <p>numerical aperture of the objective lens x 1000 = max. useful magnification</p> <p>Here is a typical example: for a 10x objective with numerical aperture NA 0.25, a maximum of 250x magnification can be realized. This is realized with a 25x eyepiece. The numerical aperture is usually printed besides the magnification factor on many objectives.</p> <p>Magnifications beyond the max. useful magnification do not show any further details (so-called <strong>“empty magnification”</strong>) and are therefore not recommended.</p> <table> <thead> <tr> <th><strong>Specifications</strong></th> <th><!--specs--></th> </tr> </thead> <tbody> <tr> <td>Magnification, x</td> <td>15</td> </tr> <tr> <td>Eyepiece barrel diameter, mm</td> <td>30.5</td> </tr> </tbody> </table><table><tbody><tr><td>Марка</td><td>Bresser GmbH, Germany</td></tr><tr><td>Гаранция</td><td>2 года</td></tr><tr><td>EAN</td><td>4007922143644</td></tr><tr><td>Размер на опаковката (Д x Ш x В)</td><td>3x3x3 cm</td></tr><tr><td>Транспортно тегло</td><td>0.05 kg</td></tr></tbody></table>