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Oh my goodness, no! If it's not recorded in the EXIF I have no idea - but unless I'm using an older manual-focus lens (which I sometimes do for macro), the camera and lens info is all recorded in the photo file.

Oh really... okay! I did try looking for that once but I never found that sort of info... maybe a question to ask my husband, he may know that one. Yeah I thought it was mad that you all knew that info...I was thinking that would be a nightmare!

In Windows, if you right click an image, then click Properties, then go to the Details tab, most of the main information is there. :)

Oh you're too good thank you!
That is awesome... I wasn't looking in the right spot... clearly! : )

Is it the focal length that tells me what lens was on?

The lens model will often be there as well, but the focal length will give you a clue.

Oh yeah I see that... it's blank. I used no lens ; ) lol :P