Re: B& L Dynazoom question

Hi,

I'm pretty sure you have the older gray color Dynazoom. The top
elements of the condenser were screwed into the stage and a thrid
convex lens was mounted on a rack. This arrangement split the
condenser components. .

If the slider is Black it was designed for a later Black Body
Dynazoom. The slider has a place for a daylight blue filter and
another lens that helps illuminat the field of very low power
objectives, 2X - 4X range. I owned both models long ago. r.

The newer Black Body Dynazoom had the entire condenser mounted on the
rack and the slider clamped onto the bottom of the condenser..

The Dynazooms all have a well where the light exits the base. B & L
made a series of neutral density filters that were placed in the well
to adjust the intensity of the illumination. The filters were
constructed with metal films deposited betwee tow pieces of glass.

The design of the gray body Dynazoom condensers were unususal but
effective. .

Aaron


On 25 Jan 2006 18:04:00 -0800, "hakelly" <kelly@xxxxxxxxxxxxx> wrote:

>I am new to this field, and have a question about my Dynazoom condenser
>apparatus.
>It does not appear to conform to the setup in the Dynazoom manual, or
>at least I am not interpreting it correctly.
>It has a 1.3 Abbe condenser mounted non-adjustably under the stage.
>Under that is a lens, diaphragm, and slide-in holder assembly that is
>on a rack and pinion arm, but also non-centerable. Below that is a lens
>in the base that transmits light up from the illuminator.
>What, exactly , is the condenser? Is it the upper lens, intermediate
>lens, or a combination of the two? Other condenser options for this
>scope seem to combine all this in one assembly.
>Is it possible to buy, say, a darkfield condenser for this model that
>would fit?
>The manual shows the entire condenser on the rack and pinion. Mine is
>not like that.
>Also it has only the one diaphragm, which I assume is the iris
>diaphragm, but is lacking a field diaphragm - although there is a well
>over the base lens which I assume could take various attachments.
>The manual I have is the same as available on the web.
>Thanks, hakelly
.

Relevant Pages

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