Here are the three generations of the EL as described by Jan.
- 1st gen - Swarovki EL reported to have coating and focus speed updates during production run.
- 2nd gen - Style changes, Swarovision and I think HD glass (ED glass).
- 3rd gen - New lug design, diopter lock, style change.
The photo shows - Left is 1st gen, Center is 2nd SV gen, Right is 3rd Profield gen.
View attachment 647133
Things to look for in order to tell them apart:
1st gen:
- Solid exposed black framework on the inside of the barrels..
- Swaro and Hawk logo marking line up with each other at eye piece end.
2nd gen:
- Skeleton framework with green armor on the inside of the barrels.
- Swaro and Hawk are staggered.
3rd gen:
- Round strap attachments for the Profield design.
- Only a hawk logo.