For terrestrial use, my question is, the delos have rectilinear distortions? the lines of the buildings are not straight like panaoptics?have a apm 82 sd binocular, I like delos 14 mm but it must warking well also for landscape and birds watching, so I need a pair that working well also in day time without lateral color and without rectilinear distortion. thank you.
Yes, virtually all widefield eyepieces designed for astronomy or mixed astronomy/daylight use have RD in the field.
Eyepieces with no RD have a lot of angular magnification distortion (AMD) instead, which makes things shrink as they near the edge of the field.
It is not possible for a widefield eyepiece to be free of all distortions (i.e. orthoscopic).
If you want an eyepiece for daylight-only use, try:
APM 12.5mm 84°
Noblex (formerly Docter) 12.5mm 84°
Nikon NAV-SW eyepieces
Meopta, Kowa, Swarovski, Leica, Zeiss, zooms
Fixed focal length spotting scope eyepieces from the above
stick to smaller field (like 50°) eyepieces, which, by virtue of a narrower field, have much less distortion.