Here are a couple of other pictures taken by Evgeniy with his modified Tal200K + Tal250K focal reducer
M13, TAL 200K+ focus reducer, QHY8, 12 Images for 200 seconds
http://img-novosib.fotki.yandex.ru/get/4523/100245359.0/0_6b370_a8a5529c_orig
NGC7023, TAL 200K+ focus reducer, QHY8, 24 Images for 10 minutes
http://img-novosib.fotki.yandex.ru/get/5821/100245359.0/0_6b372_61875fa_orig