I'd agree daytime the wraith will provide a bit more clarity...
Although the C50 is infinitely better than the wraith in design, low light ability and night vision.
The wraith has a ridiculously small eye display and some of the worst reticules I've used to date..
Yes if you use digital mag in daytime it does degrade the image, but its strong point is as a low light and night vision scope, it has amazing balance control of the full scene too...and the eye display is huge in comparison, and reticule options lightyears ahead.
Just all depends on budget and your needs, I honestly could not use a Wraith at all, I found them terrible, like mentioned mainly due to the tiny screen and reticules... if they upgraded these they would be much better...