Re: [ccp4bb] O/T: microscopes

- Protein crystallography

Main steps:

- Protein purification
- Crystallisation

Special:

- Programs for crystallography
- X-ray detectors

Basic tutorials:

   - Chemistry
   - Protein
   - Peptide
   - Amino Acids

Xtal community:

- CCP4BB

CCP4bb navigation

CCP4bb <-- 1999 <-- November 1999 <-- 30 November 1999

Previous message:
Subject: O/T: use of heparin in crystallisation
From: "Chen, Yu Wai" yu-wai {- dot -} chen {- at -} KCL {- dot -} AC {- dot -} UK
Date: 2008-12-17

Next message:
Subject: iMosflm in 6.1 under OS X
From: Andrzej Lyskowski alnyds {- at -} GMAIL {- dot -} COM
Date: 2008-12-17

Subject: Re: O/T: microscopes
From: Uwe Mueller umue {- at -} BESSY {- dot -} DE
Date: 2008-12-17

Dear Clint,
Jerome is right. Do not expect to get a stereo microscope (these are
more or less two microscopes within a smart arrangement) for this price.
We purchased recently a Leica M205A, which defines the quality and price
for a high-end system. It has a magnification range using a 0.8 plan
objective and 10x oculars of 6-160x at a working distance of 90mm. The
price for the objective alone is around 3000 US$, the full system with a
CCD camera and the Leica application suite software cost then 13x more
then you are expecting.
Best regards,
Uwe

mesters wrote:
> The combination of for example 10-120x stereo-zoom magnification, good
> optical quality, bright- and dark-field illumination,
> and only 3000 US$ is NOT possible unless:
>
> 1) you are willing to buy a second hand of quality brands like Leica,
> Zeiss, Olympus or Nikon (my preference)
> 2) you buy a low quality brand and you will later regret having done
> that .....
>
> My two cents of advice, go for a SECOND HAND or, get more funding i.e.
> at least triple the amount
>
> - J. -
>
>
>
> Clint Spiegel wrote:
>> Hi,
>>
>> I am looking to buy a modestly-priced zoom scope for x-ray
>> crystallographic purposes ($2-3000). Does anyone have suggestions about
>> what/where to possibly find this? I currently have a cheap one that
>> goes
>> from 7.5-50X, but I'd like something with a little more magnification, a
>> better light source and better optics.
>>
>> Thanks,
>> Clint
>>
>>
>> Clint Spiegel
>> Assistant Professor, Chemistry
>> Western Washington University
>> 516 High Street
>> Bellingham, WA 98225-9150.
>>
>
>

--

Dr. Uwe Mueller
BESSY-MX group / Group leader

Albert-Einstein-Str. 15, D-12489 BERLIN
Fon +49 30 6392 4974
Fax +49 30 6392 4975
email-bessy: umue@bessy.de
email-hzb: umue@helmholtz-berlin.de

Helmholtz-Zentrum Berlin für Materialien und Energie GmbH
Elektronenspeicherring BESSY II
Albert-Einstein-Str. 15, D-12489 BERLIN
Vorsitzende des Aufsichtsrates: Dr. Beatrix Vierkorn-Rudolph,
Geschäftsführer: Prof. Dr. Anke Rita Pyzalla, Prof. Dr. Michael Steiner, Dr. Ulrich Breuer
Sitz Berlin, AG Charlottenburg, 89 HRB 5583

Helmholtz-Zentrum Berlin für Materialien und Energie GmbH
Glienicker Straße 100, 14109 Berlin
Vorsitzende des Aufsichtsrates: Dr. Beatrix Vierkorn-Rudolph
Stellvertretende Vorsitzende: Dr. Jutta Koch-Unterseher
Geschäftsführer: Prof. Dr. Anke Rita Pyzalla, Prof. Dr. Michael Steiner, Dr. Ulrich Breuer
Sitz der Gesellschaft: Berlin Handelsregister: AG Charlottenburg, 89 HRB 5583

Information:
Durch die Fusion mit dem ehemaligen Hahn-Meitner-Institut (HMI) ist
BESSY nun Teil des neuen Helmholtz-Zentrum Berlin für Materialien
und Energie (HZB). Die Fusion wird im Januar 2009 vollzogen sein.

By the merger with the former Hahn-Meitner-Institut (HMI), BESSY
became part of the new Helmholtz-Zentrum Berlin für Materialien und
Energie (HZB). The merger will be completed by January 2009.

Disclaimer automatically attached by the E-Mail Security Appliance
mail0.bessy.de 12/17/08 at Helmholtz-Zentrum Berlin GmbH.

CCP4bb navigation

CCP4bb <-- 1999 <-- November 1999 <-- 30 November 1999

Previous message:
Subject: O/T: use of heparin in crystallisation
From: "Chen, Yu Wai" yu-wai {- dot -} chen {- at -} KCL {- dot -} AC {- dot -} UK
Date: 2008-12-17

Next message:
Subject: iMosflm in 6.1 under OS X
From: Andrzej Lyskowski alnyds {- at -} GMAIL {- dot -} COM
Date: 2008-12-17