[pure-silver] Re: OT: Brumberger MF Slide Projector
- From: Malcolm & Sylvia Brickwood <m_s.brickwood@xxxxxxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx
- Date: Fri, 26 Nov 2004 06:03:16 -0800
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
=============================================================================================================
To unsubscribe from this list, go to www.freelists.org and logon to your
account (the same e-mail address and password you set-up when you subscribed,)
and unsubscribe from there.
Other related posts:
