Jesse Evans wrote: Schlotkins wrote: Jesse Evans wrote:
This will be a great lens for people that want to take pictures of the moon. And an interesting lens for people that want to shoot supertelephoto landscapes.
If the IQ is ok, can always stack pictures of the moon to reduce noise as it would be 1600 f32 with the 2x extender right?
I mean, I was being somewhat tongue in cheek, because taking pictures of the moon is one of the few things it doesn't really matter what the aperture of the lens is, because the moon is so absurdly bright. At f/11 you can shoot on a tripod comfortably at 1/125s at ISO 100.
Wrong ... such parameters may work for a full moon (I never try so don't know exactly). But if you want interesting detail it is best to shoot around half moon or closer to new moon. In this case exposure is like 1/60 second f/11 at ISO 400 (or 1/30s with 1.4x TC added). Longer exposure times will give trouble with moon motion when TC is added and higher ISO means some detail loss (on my APS-C body, probably similar on a 45 MP R body).
Averaging a stack of pictures isn't going to work unless you have perfect atmospheric conditions. Normally all the details are slightly "wobbly' due to atmospheric distortion and averaging several images will likely blur fine detail compared to a single image (even if images are stacked as well as possible); in most cases noise will be the lesser evil.
Jesse Evans wrote: Schlotkins wrote: Jesse Evans wrote:
This will be a great lens for people that want to take pictures of the moon. And an interesting lens for people that want to shoot supertelephoto landscapes.
If the IQ is ok, can always stack pictures of the moon to reduce noise as it would be 1600 f32 with the 2x extender right?
I mean, I was being somewhat tongue in cheek, because taking pictures of the moon is one of the few things it doesn't really matter what the aperture of the lens is, because the moon is so absurdly bright. At f/11 you can shoot on a tripod comfortably at 1/125s at ISO 100.
Wrong ... such parameters may work for a full moon (I never try so don't know exactly). But if you want interesting detail it is best to shoot around half moon or closer to new moon. In this case exposure is like 1/30 second f/11 ISO 400. Longer exposure times will give trouble with moon motion especially when TC is added and higher ISO means some detail loss (on my APS-C body, probably similar on a 45 MP R body).
Averaging a stack of pictures isn't going to work unless you have perfect atmospheric conditions. Normally all the details are slightly "wobbly' due to atmospheric distortion and averaging several images will likely blur fine detail compared to a single image (even if images are stacked as well as possible); in most cases noise will be the lesser evil.
Jul 06, 2020 at 12:02 PM
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