LarryChen wrote:
The Sigma is 40% heavier with less reach and can’t do 30 FPS. It is also less flexible with extenders currently only the Viltrox 2x is compatible. Very similar cost. The Sigma has 1/3 stop more light while giving up reach.
$700 difference new (maybe a bit less since I get an educator discount), but the Sigma can be found used for about $2,200. But I think if we can swing it we will do the Sony (maybe I should really be comparing the 400mm w/TC since the cost is closer).
Didn't realize the weight is so different, I already find the 500mm very impressive.
is a short YouTube video; you'll find the download link for the JPEGs in the description. Please be kind, as this is the first video where I actually speak 😅.
tuomkok wrote:
I am little surprised of the popularity of 600mm in the poll.
400m has critically brighter aperture and makes sense to be used with 1.4xTC also in less than perfect light - thinking of Nordic winter conditions.
600mm is a better starting point for birds (well a quick zoom is but outside of that ) , though I agree, f/4,5 vs f/6,3 would make a difference in the woods and on overcast days, especially in winter. Nordic prices are a bit skewed in favor of the 400mm as well, at least here: 32k vs 45k SEK. I'm a bit tempted by the tc rebate currently running in some stores, to get the 400 and the sel20tc.
valmofab wrote:
is a short YouTube video; you'll find the download link for the JPEGs in the description. Please be kind, as this is the first video where I actually speak 😅.
Thanks for sharing the jpg files. You are right. They look identical. 300 combo has slight edge in bokeh. Otherwise it's hard to find any difference in sharpness.
CPWarner wrote:
The rep at the Sony event I was at yesterday said the preorders for the 600 are way above the 400. Same as our poll here.
If I had a 30MP (or lower) sensor, I would have bought the 600mm f/6.3; but with the A7R6 and APS-C mode, I effectively have a 600mm f/4.5 at 28MP, and—for less skittish animals—a 400mm at 67MP. 👍
CPWarner wrote:
The rep at the Sony event I was at yesterday said the preorders for the 600 are way above the 400. Same as our poll here.
If I had a 30MP (or lower) sensor, I would have bought the 600mm f/6.3; but with the A7R6 and APS-C mode, I effectively have a 600mm f/4.5 at 28MP, and—for less skittish animals—a 400mm at 67MP. 👍
) , though I agree, f/4,5 vs f/6,3 would make a difference in the woods and on overcast days, especially in winter. Nordic prices are a bit skewed in favor of the 400mm as well, at least here: 32k vs 45k SEK. I'm a bit tempted by the tc rebate currently running in some stores, to get the 400 and the sel20tc.