Next lens

[BAfan15]

I have been thinking about a new lens lately, especially with the blue angels being around soon. I have a 70-200 and a 2x converter, but I haven't been super impressed with image quality with the 2x on it. All of my gear is Canon.

My question is - what do you typically shoot with at airshows? I have a unique opportunity in that I'm very close to NAF El Centro (so I can get up close easily), but I'm still left wanting some higher quality images than my teleconverter, but with a tighter framing. I also enjoy wildlife photography, but there are so many options out there it's overwhelming at times. Lately, I've been watching used lenses at KEH (older versions, like the 300 f/2.8 IS version I, 500 f/4 IS version I, etc) because I can't justify dropping 6-12 grand on the latest and greatest, even though I would love to.

I thought about the 300 f/4 or the 400 f/5.6, but at that point it seems like I should just get the 100-400, either version. Then I get to another dilemma... I basically already have a 140-400 as it is with my converter. I really care about image quality, but also want to make sure I have somewhat decent low light capability for wildlife situations. If I'm going to spend 1.5-3.5 grand, I don't want to regret it.

Any input/advice/help is appreciated - obviously my head is spinning. Thanks!

[samophoto]

I use the Canon 100-400 mark 2 with a 7D mark 2, for airshows I don't use my 1.4 converter.  For wildlife mostly birds I add the converter which makes it an F8 lens with the center focusing point only; I have found that it does slow down the auto focus.

[Realbigtaco]

Sigma 150-600mm Contemporary lens.  Great range, sharp images, and best of all, it's under $1000.

[BAfan15]

Thank you for your input. I'm planning to rent for a few weeks before I pull the trigger, just to make sure it's what I am looking for. LensRentals has a 20% off coupon for lenses arriving by the end of the month, so that makes it that much easier. Thanks again for the feedback!

[phantomphan1974]

I am selling my Canon 100-400 Mk I if your interested.  asking $900 obo

[BAfan15]

I am selling my Canon 100-400 Mk I if your interested.  asking $900 obo

Thanks, but I'd be looking at a V2 if I go that route.