crwdns2936637:0crwdne2936637:0 crwdns2853008:0crwdne2853008:0 crwdns2861143:0crwdne2861143:0

crwdns2944620:0Microscopecrwdne2944620:0

crwdns2934139:0crwdne2934139:0
crwdns2934141:0crwdne2934141:0 crwdns2918718:0crwdne2918718:0
crwdns2931223:0crwdne2931223:0
Microscope

Microscope crwdns2944632:0crwdne2944632:0

crwdns2934279:0crwdne2934279:0
crwdns2931213:0crwdne2931213:0
crwdns2943217:0crwdne2943217:0 crwdns2931211:0crwdne2931211:0 crwdns2931213:0crwdne2931213:0 crwdns2931215:0crwdne2931215:0
crwdns2931223:0crwdne2931223:0
Microscope
0 crwdns2873741:0crwdne2873741:0

Is it normal to have dust in the microscope lenses?

crwdns2934197:0crwdne2934197:0 Microscope crwdns2933315:00crwdne2933315:0

Augustine 16,3crwdns2936485:0crwdne2936485:0

crwdns2931741:0crwdne2931741:0

commented crwdns2933505:0crwdne2933505:0 Augustine