Re: [ccp4bb] Apochromatic and Achromatic

[Jürgen Bosch]

What type of camera were you thinking to add to the microscope ? Faveon based 
chip ? 30+ megapixel regular CMOS based chip ? If the answer to both is no, 
then go with the cheaper lense (achromatic). After all it is not about the 
beauty of the crystals, if they diffract or not does not depend on apo- or 
achromatic lenses.

Jürgen 

..
Jürgen Bosch
Johns Hopkins Bloomberg School of Public Health
Department of Biochemistry  Molecular Biology
Johns Hopkins Malaria Research Institute
615 North Wolfe Street, W8708
Baltimore, MD 21205
Phone: +1-410-614-4742
Lab:  +1-410-614-4894
Fax:  +1-410-955-3655
http://web.mac.com/bosch_lab/

On Jul 30, 2011, at 5:46, Ramanathan Natesh r.nat...@mail.cryst.bbk.ac.uk 
wrote:

 Dear All,
In crystal examination stereo zoom microscopes, how important is 
 it if one chooses a Achromatic objective lens compared to Apochromatic 
 lens.
   Achromatic can give higher working distance ~ 70 mm or more as 
 compared to Apochromatic, which may be important for picking crystals / 
 manipulating before flash freezing. 
   Is it good to compromise on working distance to get Apochromatic 
 objective?
 
  An input from the community will be of great help to me.
 
 Many thanks in advance,
 Natesh.
 
 --- 
 Ramanathan Natesh 
 Now at IISER-TVM (India).
 
 Live Simply and do Serious Things .. 
 - Dorothy Mary Crowfoot Hodgkin OM, FRS 
 
 In Science truth always wins
 - Max Ferdinand Perutz OM FRS
 ---

Re: [ccp4bb] research paper

[Francois Berenger]

On 07/29/2011 06:30 PM, Robbie Joosten wrote:

Jung-Hoon,

This is a so-called WaReZ request, which could get you banned a lot of webfora. 
Of course, we are all guilty of it at some occasions. The best way to get an 
article is to ask the authors, they are allowed give away free copies 
(depending on the journal I guess). Hooray, for authors who pay open access 
fees.


Open Access fees are bad.
Read this and you will understand:
(HTML)
http://cacm.acm.org/magazines/2010/2/69353-open-access-to-scientific-publications/fulltext
(PDF)
http://www.lri.fr/~mbl/pdf/cacm-openaccess-feb10.pdf

Regards,
F.


Cheers,
Robbie



Date: Thu, 28 Jul 2011 12:23:10 -0400
From: f...@bernstein-plus-sons.com
Subject: Re: [ccp4bb] research paper
To: CCP4BB@JISCMAIL.AC.UK

The article is available for purchase for $40. Journals
cannot survive without funding which can come from many
sources - subscriptions, author payment to make the
article open-access, etc. But asking someone to provide
a 'free' copy without Acta's permission is tantamount to
theft.

Frances Bernstein

=
 Bernstein + Sons
* * Information Systems Consultants
 5 Brewster Lane, Bellport, NY 11713-2803
* * ***
 * Frances C. Bernstein
* *** f...@bernstein-plus-sons.com
*** *
* *** 1-631-286-1339 FAX: 1-631-286-1999
=

On Thu, 28 Jul 2011, Ed Pozharski wrote:


On Thu, 2011-07-28 at 14:35 +, Jung-Hoon Lee wrote:

Acta Cryst D63 (2007), 550-554.


I can't believe Cornell has no access to Acta D.

--
Hurry up before we all come back to our senses!
Julian, King of Lemurs