apogee widescans

Hi everyone
Can anyone tell me from experience how the widescans perform in an f5.0 or 4.5 scope. I am considering these for bino viewing and they have a great price and a wide fov (10-20 mm, 1.25 inch eps). Thanks.

I have used the widscan in a 12.5" f 4.8 & was blown away!!
huge, huge view!! it was great for about 65% to 70% of the field of view the other wasnt so good! i like them anyways! also great price!
hope this helps.
thanks david