[pure-silver] Re: OT: Brumberger MF Slide Projector

Yes indeed, I was thinking the same. The cooling fan is quite noisy but 
it looks very little used and a fancy new one is just too expensive for 
the limited use that I'd give it, especially since my Leica Pradovit 
P600 with Colorplan-P2 1.25/90 is so good for 35mm -- which outnumbers 
MF usage by a huge margin. It could be fun making it work better 
though.

Regards -
Malcolm Brickwood



On Nov 26, 2004, at 6:40 AM, Gene Johnson wrote:

> I've noticed quite a number of projection lenses offered on Ebay and 
> surplus
> places that might offer you an opportunity to upgrade.  Might do a 
> google
> and see what's out there that might fit or be made to fit.
>
> ----- Original Message -----
> From: "Malcolm & Sylvia Brickwood" <m_s.brickwood@xxxxxxxxxxx>
> To: <pure-silver@xxxxxxxxxxxxx>
> Sent: Friday, November 26, 2004 6:03 AM
> Subject: [pure-silver] Re: OT: Brumberger MF Slide Projector
>
>
>> Thanks Richard. Knowing that it's a low cost product is a great help
>> and probably explains the performance because that's exactly how it is
>> performing! I had no idea where it fitted in the quality spectrum. 
>> I'll
>> check per your suggestion and report back.
>>
>> Thanks -
>> Malcolm
>>
>>
>> On Nov 25, 2004, at 9:52 PM, Richard Knoppow wrote:
>>
>>>
>>> ----- Original Message -----
>>> From: "Malcolm & Sylvia Brickwood"
>>> <m_s.brickwood@xxxxxxxxxxx>
>>> To: <pure-silver@xxxxxxxxxxxxx>
>>> Sent: Thursday, November 25, 2004 8:24 PM
>>> Subject: [pure-silver] OT: Brumberger MF Slide Projector
>>>
>>>
>>>> We've recently been given a MF slide projector which is
>>>> something
>>>> always wanted but never justified. It's a Brumberger Model
>>>> 1406 and is
>>>> fitted with a Brumberger Anastigmat coated 5" f/3.5 lens.
>>>> Somehow it
>>>> does not look very sharp either in absolute terms or
>>>> compared with our
>>>> Leica Colorplan-P2 1.25/90 (on a Leica Pradovit P600 IR
>>>> actually). The
>>>> optics on the Brumberger MF projector are bit dusty but
>>>> nothing
>>>> serious.
>>>>
>>>> Does anyone know what performance should be expected from
>>>> this lens?
>>>>
>>>> Thanks -
>>>> Malcolm Brickwood
>>>> Santa Clara, CA
>>>>
>>>
>>>      My memory is that Brumberger was a rather low cost
>>> projector. I have no idea who actually made the lenses or
>>> what type they are but the poor performance is probably
>>> normal. Remember, you are comparing it to a very high
>>> quality projector.
>>>      You may be able to discover the construction of the
>>> lens by counting reflections. Even though the reflections
>>> from single coated lenses are dimmer than those from
>>> uncoated glass they are still pretty bright. If you see any
>>> very dim reflections they are from a cemented interface. My
>>> suspicion is that this is a triplet of some sort.
>>>
>>> ---
>>> Richard Knoppow
>>> Los Angeles, CA, USA
>>> dickburk@xxxxxxxxxxxxx
>>

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