How to clean the back of the lens?
Hello! Yesterday I bought my new microscope Olympus BH-2 from the marketplace for a great price. Everything seems to work nice and smooth. The thing is, I bought it without oculars, so checking lenses was a little hard, especially for the first time. I used the flash light to check if there was any dust, fungi, or scratches.
On x40 lens I saw this thing in the photo. On these images It really looks like a scratch because of the phone camera, but, when I look at it with my eyes directly, it doesn't shine like that. Some of those lines just look like a fluf or some kind of dust.
I've noticed that it is on the inside glass of the lens, so I'm thinking of using a blower to try to remove it hoping it's just dust.
Since it's my first microscope, I'm being very paranoid about damaging the lenses. Is it okay to use a blower from the pharmacy and blow inside of it? Or I will just bring more particles in?