E and sel lens

[Malr97]

Hi

i am new to this does anyone know what the deference between a sel lens and a e lens, I have a e mount Sony camera .

i am looking at a sel 55 210 lens but some of them are marked e 55 210 so are they different.

any help will be great many thanks 

[Nobody-in-particular]

Does this help - Sony Lens Abbreviations

If you inform the community of your camera model users may be able to advise further.