The 1st cold front from the Asian Main Land

Cold winter is in the air this morning. The first cold front comes down from the Asian Land as usual, Brrr!. Probably temperature outside will not exceed 10 degree celsius today. Though I'm not a reptile, cold weather inhibit me to go outside, a hesitative devil whispers behind my ears, "Cancel an appointment for lunch with my friend. ".
Because of finding out some mold colony in the zoom lens maintained and serviced the other day, I'll disassemble it again on Konica Hexanon 35~70/3.5 2nd generation model.