« on: September 15, 2014, 01:15:03 PM »
7D2 ships within November.
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What do we need....Ships in volume 2020... that's when the new 800 is needed.
Still waiting for the new EF 600mm f/4L IS USM Extender 1.4x (600mm 4.0 / 840mm 5.6)
There is no need for a new EF 800mm /5.6
And I meant, if the maximum distance was 20m. I rarely encounter birds that close, especially the more unusual ones.In which case I prefer the subject be that close. I dont bother taking photos of birds further than that as I'd just delete them anyways.
if your relative humidity tends to be 80% or greater and temp ranges from 35°c or greater with a lot of coal and diesel (think "rolling coal" trend in the US) emissions then it will be a problemAlso, when you get into these extremes, you need to be shooting in cold, clean alpine air, or humidity and other environmental conditions will wreck your image.especially if the subject is ways away. I much prefer the subject be less than 20m.
Gosh, if I restricted myself to 20m I'd get almost no shots at all! I don't find air quality a problem until the subject is a couple of hundred metres away (in sunshine/warm weather) or more. Maybe it's just the different climates?