50L on crop vs 85 F1.8 on FF at F2 ??

[eninja]

Just curious.
I wanted best 85mm set up at aperture F2.

I have 70D and 50L.

Would image quality be better if I got 6D and 85mm 1.8 instead?

image quality refer to wow effect - sharpness, color, contrast, etc.

 

[ajfotofilmagem]

Chromatic aberration and sharpness are worse in 50L. See this comparison with 60D and 1DS Mark iii, which should be very similar to the result of 70D and 6D.

http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=403&Camera=736&Sample=0&FLI=0&API=2&LensComp=106&CameraComp=453&SampleComp=0&FLIComp=0&APIComp=1

 

[eninja]

thanks. I guess I need to stop fooling myself that 50L is better, but but I like to use an L Glass.
I have previously own good 85mm 1.8 but sold it coz of the need of more versatile lens.

It feels hard to re buy lens you once sold already.

I don't want make same mistake buy selling 50L for a 6D and 85mm 1.4.

Tsk Tsk. I guess I just need to work hard to get that another fullframe.

 

[candc]

I don't know what the deal is with the 50l but it seems to be the worst on test charts/best in real life shooting lens there is? I wouldn't be so quick to get rid of it.

 

[Mt Spokane Photography]

The 50mmL is a special lens, I'd never put one on a crop myself. It is not a general purpose lens, so you need to appreciate the Bokeh for portrait use.

The 85mm f/1.8 is going to be sharper, but that's not always what you want in a portrait.