henry link
Well-known member
Those following this thread might be interested in this ongoing Cloudy Nights thread on the Kowa 25-60x zoom.
http://www.cloudynights.com/topic/569030-kowa-te-11wz-the-plot-thickens/
Notice that the OP starts out thinking the FL range of the eyepiece is 18mm-7.5mm based on the Kowa magnification spec of 28x-66x in the "500mm" Lens/Scope. In post #24 he discovers a magnification discrepancy and recalculates the eyepiece FL range as 20.4mm-8.4mm, which translates to a FL for the 88/77 series scopes of 504mm.
http://www.cloudynights.com/topic/569030-kowa-te-11wz-the-plot-thickens/
Notice that the OP starts out thinking the FL range of the eyepiece is 18mm-7.5mm based on the Kowa magnification spec of 28x-66x in the "500mm" Lens/Scope. In post #24 he discovers a magnification discrepancy and recalculates the eyepiece FL range as 20.4mm-8.4mm, which translates to a FL for the 88/77 series scopes of 504mm.