PacAce wrote:
Scott, how was the manual focusing with the 1.4x? That's the only apprehension I have about using the 1.4x with the 100-400. But I guess with the focus acknowledgement light in the viewfinder as a guide, it can't be all that bad, huh?
I'm still debating whether I want to get myself the 1.4x or not. I can definitely use it on my 70-100 f/2.8 lens but I have yet to really get out and shoot with it and I bought it more than a month ago.
Focus is tricky, but that may be due to the fact that I have bad eyesight and wear glasses. My eyes also play tricks on me - if I stare at something it will come into focus, but if I rest and come back then I can see that it's out of focus.
Out of ~12 photos of this guy - both with and without the 1.4 - about half were what would be called sharp. You're looking at a 100% crop with the 1.4 and some sharpening. The focus confirmation light came on *every* time, regardless of the manual focusing I did - so I don't feel it's that accurate, and I don't trust it when shooting birds because you can never get the eye to fill the sensor.
If you can afford the $280 I'd say it's worth it though. It has given me some good images that I would not have made otherwise. But I consider it handy more than practical. If you *need* the 1.4 to get a shot then I doubt that it's going to be very sellable. But if you *want* the 1.4 to get a tighter shot then it's a different story, and you'll get some nice shots. Just my humble opinion.
When you consider the 70-200 f/2.8 though, it starts to make much more sense, and becomes a lot more handy when you can use it on both lenses. And one day I just might get that 600mm L....