blue line

[Tarria]

Why would i be getting this blue line and only in this spot?

[Damien Symonds]

It's called "Chromatic aberration", and you can fix it like this: https://www.damiensymonds.net/2014/12/fixing-chromatic-aberration.html

It happens, sometimes, on edges of high contrast, and I believe some lenses are more prone to it than others.

Some really good info about CA from Brian in this post.

[Tarria]

thanks that helped

[Tarria]

And i had used my nifty 50/1.2 also. :-(

[Damien Symonds]

Good guess