Please excuse me if this is a dumb question but I am very new to birding and spotting scopes. I just purchased a Kowa 883 with the 25-60 eyepiece and the 1.6 tele extender. When using the 25-60 without the extender I am having great results however when using the extender at about 70 or higher power I am seeing a circular shadow at the center of the eyepiece. It seems no matter where I place my eye at these higher magnifications I can not see an image without the circle shadow. I have adjusted the eye cup all the way down up and in between.
It almost seems like I can not get my eye close enough to the lens to get rid of the shadow.
Thanks in advance.
Bill
It almost seems like I can not get my eye close enough to the lens to get rid of the shadow.
Thanks in advance.
Bill