. Beck microscopes. Microscopes. The high power binocular eyepiece is made in two forms, No. 3780, the straight model, and No. 3781, angular model. The straight model No. 3780 as illustrated on page 7(j is suitable where the microscope is used at an inclined position. If used with the microscope vertical it increases the working height of the instrument and may lead to discomfort for the user. The angular model overcomes this as the prismatic attachment allows the binocular to be inchned at a convenient angle when the microscope is upright, as shown in the illustration page 7t). This prismatic
. Beck microscopes. Microscopes. The high power binocular eyepiece is made in two forms, No. 3780, the straight model, and No. 3781, angular model. The straight model No. 3780 as illustrated on page 7(j is suitable where the microscope is used at an inclined position. If used with the microscope vertical it increases the working height of the instrument and may lead to discomfort for the user. The angular model overcomes this as the prismatic attachment allows the binocular to be inchned at a convenient angle when the microscope is upright, as shown in the illustration page 7t). This prismatic attachment is readily detachable, so that the possessor may use it in its angular form when his microscope is vertical, or the straight form when he inclines his instrument. A tubelength corrector is supplied to compensate for the extra optical path. Either form of binocular is suitable for attachment to any microscopes of our make and to many instruments of other makes. It is advisable for us to have the drawtube of the instrument to ensure that there are no obstructions, which would prevent its insertion. If the eyepiece size is not the standard size ("917 in.) a small cost is entailed for adaption. No. 3780. High power binocular, straight model £10 10 0 No. 3781. High power binocular, angular model 13 10 0 No. 3782. Prismatic attachment, to convert straight model to angular model 3 10 0 ANGULAR EYEPIECE ATTACHMENT. When it is necessary to use a microscope vertically, the observer finds that his position when working, gives considerable discomfort. The angular eyepiece bends the path of light so that the eyepiece projects from the micro- scope at a convenient angle for observation. It will accom- modate any power of eyepiece of the standard gauge (-917 in.) and has a correction lens to compensate for the increased tube length. No. 3779. Angular eyepiece attachment. Suitable for use with any standard (-917 in.) eyepiece ... £1 15 0. 77. Please note that these images ar
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