ef 400mm f/5.6 L upgrade

Hello group, greetings from Greece

I really need your advice here!
I have an ef 400mm f/5.6 L lens which I use for wildlife photography on a 40d body. Is it stupid... thinking upgrading to a used 500mm f/4.5 L??
Will I see better image quality? I never had the opportunity to check the 500mm f/4.5 L by myself so any advice would be really helpful

Thank you in advance
Teo

you mean the sigma?

JCheungPhoto wrote in post #5446953
you mean the sigma?

No I mean the canon 500mm f/4.5 L. Will I see better quality than my 400mm f/5.6 L? Does it worth the extra cost?

Yes indeed. The 500/4.5 (Canon or Sigma) is a great lens. I had one but finally sold it to get the 500/4 IS version. I think many would keep their 500/4.5 and never need anything longer or more expensive.

I shoot with the same set-up as you do. Yes, the 500L will give you an improvement in image quality.

huh...i've never heard of a canon 500 f/4.5

Isn't canon 500 4.5 out of production? It is nice lens, lot les heavy than 500mm f4 IS. And cheaper too.

i to think it should be sharper but not be a big amount the 400f5.6 is one of canons best to start with.
Rob.

JCheungPhoto wrote in post #5448284
huh...i've never heard of a canon 500 f/4.5

It's an older lens:
http://www.canon.com …photo/ef_500_45​l_usm.html

wow...i was an infant when this lens came out...

JCheungPhoto wrote in post #5449205
wow...i was an infant when this lens came out...

Heck, that one is new compared to some lenses.

That is why I get so fed up with date codes! Good glass is for a long time!

The 300 2.8L is from 1987!

I have the EF 500 f4.5 L, but not the 400 f5.6, so I cannot make a side to side comparison. I will tell you this, the 500 f4.5 is very sharp, it will not dissapoint.

I have shot next to people using the 500 f4 IS, and I think I like the fact that my f4.5 is much lighter.

Best wishes, Don