I have given this EP a bit of thought in terms of its physical appearance, discernible dimensions and stated specs. When considering it's size in particular with fov (and especially ER if indeed only around 10mm) I feel the optical mechanics of this EP may be closer to a 13mm T1 Nagler than anything else.
However, having said this I want to stress that a German made glass and coatings can make a gigantic difference (as Dr Zeiss will attest) and there is likely to be a no contest between the T1 Nagler and this Docter
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