THE BIOLAM "RESEARCHER": OUR VERY HIGHEST QUALITY MICROSCOPE FOR
950 $US ONLY (LOMO, S-PETERSBURG, RUSSIA)
The features and quality of this microscope match or surpass
units selling for $3000 to $5000. With 4 objectives and 5 sets of
oculars, it provides nearly any magnification need. All objectives
are apochromate, and 90x (separate description for n.a. and other
optical characteristics is possible for request). The 60x unit can
be used either dry (n.a. 0.7) or with oil (n.a. 1.0). Oculars are
5x, 7x, 10x, 15x, and 20x. The 5x, 7x, and 10x are paired, and the
15x and 20x are single eyepieces for photography using the
separate vertical tube. Since the binocular head has a
magnification of 1.5x, the effective objective magnifications are
7.5, 10.5, and 15x. An additional 7x eyepiece with both gridded
and ruled reticles is provided.
The Abbe condensor is centerable, with full adjustment and
with a numerical aperture of 1.4. A separate top lens is provided
for n.a. 0.3 illumination with low power objectives. Like the very
best Jena units of the 1930s, the diaphragm may be moved laterally
for 10 mm in any direction to allow illumination from the side.
This on of the best condensors ever designed.
The stage is rotating and centerable, silky-smooth in
operation, made of bronze, and of the very best precision
manufacture.
The Koehler illumination system is one of the best we have
ever seen, allowing virtually any adjustment needed. Although it's
more bulky than the built-in illuminators provided with many
research scopes, that bulk provides stability and very best optics
and versatility. It comes with a variable transformer. Spare bulbs
are provided, and we stock more.
The microscope is massive, which provides stability,
preventing effects of vibration. It weights approximately 5 kg.
Dimensions are 23x18x36 cm.
The units is provided with a deluxe birch wood case,
including a tray for eyepieces. Also provided are green, blue,
neutral density, and frosted condensor filters, immersion oil, a
plane and concave mirror, an adjustment tool, a jeweler's
screwdriver for condensor centering if need, a calibrated
cross-hair slide to aid in centering the stage and vertical
monocular tube allowing length adjustment from 140 to 200 mm. An
unusual accessory is a hand-blown combined dropping bottle for oil
and oil solvent.
Many accessories are available, at very reasonable prices.
They include a phase contrast condensor and objectives, apparatus
for photomicrography, a dark field condensor, water immersion
objectives, and more.
At wholesale purchasing the discount is possible
Sergei Simakov
simakov at sim.spb.ru
