Quote: using the wide naked eye double theta1/theta2 Taurus, about 5.5 arcmin wide, this wide bright pair:
In the 8x42 Action VII at about 70% out in fov, blends into a long distorted line. This means total view is distorted by at least 5 arcmin.
In the 8x42 Action EX at about 70% out in fov, it distorts about 75% the space between the pair. This means view is distorted by 3.5-4 arcmin.
Nikon Action VII 8x42 has 240 arcsec total aberration at 55-60% out. 8°fov
Nikon Action VII 8x42 has 300 arcsec total aberration at 70% out. 8°fov
Nikon Action EX 8x42 has only 200 arcsec total aberration at 65-70% out. 8°fov
Fujinon BFL 8x42 has only 40 arcsec total aberration at 55-60% out. 6.5°fov
Nikon Action EX 10x50 has only 40 arcsec total aberration at 60% out. 6.1°fov
William Optic 7x50 has only 60 arcsec total aberration at 80% out. 7.4°fov
Oberwerk Mariner 10x60 has 40 arcseconds total aberration at 80% out. 5.1°fov
Nikon SE12x50 has only 40 arcsec total aberration at 90% out. 5.0°fov
10" F/4.7 Modified Skywatcher Reflector, 38mm Orion Q70, 17mm Modified Ultima LX, 10mm TeleVue Delos, 7mm Pentax XL.
AL Master Observer C #24