The FOV indicated for the 32 Edmond Erfle is 82 degrees. Isn't it 60?
Also it's described as a 6 element eyepiece. isn't it a 5-element?
Any takes on this?
By measuring the true field and calculating the apparent field, I got 72°. Closer to the stated 68° AFOV listed on Edmund's site. Also, according to the diagram on Edmund's site there are six elements in three groups. Here's the link:
By the way, I really like this eyepiece in my 4" f/10 refractor! f/10 is so very forgiving when it comes to aberrations.