Dear All Increasingly we are finding the objectives on the microscopes are being left in a poor condition. The dry objectives are often left contaminated with either Immersion oil or buffers. If you think you may have allowed oil or buffers on to the dry objectives can you please try and wipe it off with the provided lens paper and then please send us a message so the we can check that all is ok. If you are using oil objectives, please do not switch back to the dry objectives until you have either removed your sample and/or cleaned the oil off. Please remember to clean the oil objectives at the end of your session if you have used them. Also please check the stage insert and clean off any oil, buffer or other contaminants that may have been left by you sample. Dirty objectives will result in very poor images - please help us to keep them clean Thanks FILM Staff FILM - Facility for Imaging by Light Microscopy ************************************************************** Steve Rothery FILM Technician Sir Alexander Fleming Building, desk 403 Imperial College London / South Kensington Exhibition Road London SW7 2AZ Tel +44-(0)207 594 9793 And ICTEM, (L-Block) Room 314 Hammersmith Campus Imperial College London Du Cane Road London, W12 0NN Tel. +44-(0)207 594 1669 E-mail s.rothery@imperial.ac.uk<mailto:s.rothery@imperial.ac.uk> Website: http://www.imperial.ac.uk/medicine/facility-for-imaging-by-light-microscopy/ **************************************************************