Hello Sajid, The crosshairs are chip boundaries on a multi-CCD detector. No need to mask them.
Your lattice appears to be twinned, on cursory inspection. Also you have bad cryo - I bet if you improve your cryo, the resolution of observable diffraction increases by at least 0.3A. Good luck, Artem -----Original Message----- From: CCP4 bulletin board [mailto:[EMAIL PROTECTED] On Behalf Of sajid akthar Sent: Tuesday, May 20, 2008 3:10 PM To: CCP4BB@JISCMAIL.AC.UK Subject: [ccp4bb] Maks file in HKL2000 Dear All I have trouble processing my images on HKL2000. Please refer the attached snapshot of my image. I dont understand how the cross (hair) lines came into my images. Ignoring the lines and continuation of processing results in high chi square value. The question is ... Can I make a mske file to mask all those regions and do processing. In HKL2000, I believe that I can make mask file for beam stop and one more region apart from beam stop. But I do not know whether I can make mask for all four lines and do processing. If so please let me know. Thank you Sajid Chocoholics' paradise! Enter here - http://in.search.yahoo.com/search?&fr=na_onnetwork_mail_taglines&ei=UTF-8&rd =r1&p=chocolates