MICROSCOPY ADVICE
- From: Stjepo <Stjepo@xxxxxxxxx>
- Date: 20 May 2007 06:32:48 -0700
I have been reading the comments in the sci.techniques.microscopy
group and I am impressed with the high level of knowledge that Kevin
has about microscopes. Hpe he read this.
I was given a used microscope CORRECT TOKIO of SEIWA OPTICAL, in a
very good condition http://www.seiwaamerica.com/. It was built in 1988
as it stated in the certification card which comes with it.
My Biological Microscope Model SB-BI-1
1. Total Magnification: 40X, 100X, 400X, 1000X
2. Mechanical Tube Length: 160 mm
3. Tube: 30 degree, inclined binocular tube interpupillary distance
adjustment 55-75 mm on both tubes. Dioptric distance adjustment on
both tubes, 360 º rotatable.
4. HWF 10X (FN 16.5x pair)
5. Nosepiece: Quadruple with click stops
6. Objective (Din Type) 4X (0.10), 10X (0.25), 40X (0.65), 100XOIL
(1.25)
7. Focus Adjustment: Coaxial Type/ Coarse & Fine adjustment (2 mm
travel / 0.002 mm sensitivity with safety stopper)
8. Mechanical stage 120 mm X 122 mm with coaxial handle. Travel /35
mm X 75 mm (no idea, maybe)
9. 6V/20W Halogen Lamp Transmitted illuminator with intensity
regulator
(low voltage 6V/3.5ª) Built in transformer 220-240VAC
10. Condenser: Abbe type N.A. 1.25 condenser with iris diaphragm,
filter
Rack & pinion focusing mechanism.
11. Dimensions 380mm(H)X300mm(D)X210mm(W)
12. Weight: 6.8Kg
13. Wood Carrying Case
I been making some pictures from it and now I want to improve my
Microscope with some devices, therefore I need an expert advice to buy
the following:
A. TRINOCULAR HEAD: As the original is very expensive I have found the
following offer:
from http://www.radicalindia.com/
"We can supply Trinoclar Head suitable for Saiwa Optical Microscope.
The Inclination angle is 45º, costing US$ 105.00 each (ex-factory).
Photograph attached."
Also they promise to give me the correct circular attachment as mine
is 52 mm.
Is it worth or I am wasting my money (original SEIWA trinocular head
costs US$ 400)?
B. CONTRAST CONDENSER: Their offer is:
Brand New Phase Contrast Condenser with Objectives 10x, 20x, 40x &
100x Oil with telescopic eyepiece will cost @ US$ 425.00 each Nett Ex-
Factory.
Will it make a great difference? Currently I am taking pictures which
look like the ones taken with this device using a glass with a dark
point in the filter rack of the condenser. Is it worth?
C. DARK FIELD: Also they offer me the following:
Dark-Field Attachment @ US$ 274.00 each
Consists of dark-field condenser and 100x oil immersion with built-in
iris diaphragm.
I am asking for an advice because I am completely ignorant in this
subject and I have no place to ask. Any comment from you will be
appreciated.
Thanking you in advance.
.
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