Getting canon 50mm 1.4, should i keep or sell 50mm 1.8?

I really like shooting w/ the nifty fifty and decided to upgrade to a 1.4 with my tax money. =) Now, I'm not sure if I want to keep the 1.8 or sell it since I'm thinking it could be use as a backup lens since it's just $100. The 1.4 is at around $400 which is pricey to me so I might be stingy in taking it to places where I know I have to be super careful with it as opposed to the 1.8. BUT if I keep both, that means I will have 2 lenses at 50mm which is unnecessary. What would you do given what I have:

50mm 1.8
85mm 1.8

Thanks!

I would probably sell the nifty fifty and buy a lens hood for the f/1.4 to avoid damage to the AF mechanism. The f/1.4 is notoriously prone to AFfailures.

Sell it. I've had the 1.8 and now use the 1.4. I was glad to replace the 1.8.

Sell nifty

edit: actually.. i would compare them carefully, and if the difference wasn't worth $300.. to me, i'd send the 1.4 back.

Didnt buy it yet. I should take a look at the two lenses again and see if its really worth the extra $300 especially given the AF mechanism problem I wasnt aware of.

If you really need the f 1.4, then buy it. Otherwise the difference isn't worth the premium IMHO. The nifty is such a good lens for the price. Buy something else with your tax refund.

To answer your original question. When you have both the 1.4 and 1.8, only sell the 1.8 if you need the extra $50, keep it as a back up if you don't.

I've had a nifty from when I had a Nikon and got one again when I switched to Canon. The 1.8 is such a good lens for the price especially if you got for cheaper.

Honestly I never looked back or even thought about using the 1.8 after getting the 1.4 so I ended up selling it.

If you have any use for the 1.8 after upgrading like videos or have a second dslr and want two prime lenses then keep it otherwise no use of having both.

do what Shaftmaster said to do.

Either that or use it as a Xmas gift lol

If you can find a good copy, Sigma 50 f1.4 is newer release and said to have much better build quality and bokeh.

the 50mm f/1.8 will get you maybe $90, I would hold onto it. But then again, I love 50mm lenses.

keep it and get another prime, like 24 or 85mm

Yes get the 1.4 50, I started with the 1.8 and was so pleased I switched, the difference is worth the extra coin

Keep it and sell it when you upgrade bodies.

keep the nifty and just save your tax refund. The nifty is quite a lens when shot @ 2.8 - 4.0....