airconvent
Senior Member
No need for CISCO and guard dogs... I respect things of sentimental value (cos I'm a sentimental guy just as you are :bsmilie
Ya, the Sigma 600mm is like a super portable 'astrograph' for you. These things are hard to find now, just like my classical cassegrain scope.
:bsmilie: no problem...just kidding lah..you helped me buy the 600mm , remember? maybe one day if the opportunity arises, we can do a comparison between the sigma 600 and your russian mirror lens..
