REFMAC and resolution limits

[Joerg Mueller <J.Mueller@Uni-Koeln.de>]

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Dear all,

is there a simple possibility to improve the resolution limits in small
steps from one refinement cycle to the next using REFMAC (something like
the STIR instruction in SHELX)?

And is there a high resolution limit for the refinement with REFMAC or
should one use other programs - like SHELX or CNS - for data better than
let's say 1.1 A?

Thanks
Joerg

-- 
Joerg Mueller                 Department of Biochemistry
Phone +49-221-4706443         University of Cologne
                 6455         Zuelpicher Strasse 47
Fax   +49-221-4705092         D-50674 Koeln