I am planning a trip this winter to try and photograph eagles. I am having A issue deciding what to do lens wise.
I have a 7D that I will be bringing
I have a 100-400L but I am not sold that it is going to be long enough.
here is my thought process:
I could get a 300MM F/4 NON IS for around 700 ish. then maybe get the 1.4 TC. how much is that going to degrade the IQ and how much slower is it going to focus? Also I don't know if the extra 32MM is really going to be worth it, although I am hoping to stick with canon before venturing off to other brands.
I also thought about the Sigma Bigmos 150-500. it has OS and does not require a TC and gives me 800MM with the 7D. I have heard bad things though. Such as its inconsistent.
I also gave the Tamron 200-500 a thought. I am not sure the IQ will be as good as the Canon or the Sigma.
I am hoping to keep it at or under 1000 dollars. of course I would love to pick up one of canons high end telephotos but it just is not affordable right now.
any advice or help anyone could give it would be greatly appreciated. I have time until I need to decide but I just like to get a head start and try and find a deal.
thank you very much in advance!