Moon shot

What is this on the photo around the moon?

The moon reflects light from the sun..
so you are seeing a fringe kind of effect around the moon..
It's also known as the Corona caused by diffraction of the light

Well, it looks more like a jpeg artifact to me.

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Well, it looks more like a jpeg artifact to me.

This is a very accurate observation, I would add that the dirty effect is exaggerated
by noise.

Yep.. in the image the corona is seen due to the high amount of noise.
But you are able to differentiate this only due to the diffraction being caused on the surface.
if we had some super awesome cameras on satellites, you would see this more as a haze than all that noise.

WhiteLight said:

if we had some super awesome cameras on satellites,
you would see this more as a haze than all that noise.

Click to expand...

Not exactly, if we had some super awesome cameras on satellites,
you would see nothing because the halo is rendered by the atmosphere.

If we had some very ordinary camera on satellite, the details would be
sharp, no diffusion and no halo.

well... i guess you get the point
​

So I had something in camera settings wrong?

And if that is the case, what settings should i have used?

How do you get rid of noise?
Thanks

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OK Donald, first, what were the settings?

Kodiak said:

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OK Donald, first, what were the settings?

Click to expand...

70-300mm. 4.5-5.6
300mm
ISO100
!/1250 sec.
f-5.6
OEV Auto1,0,0

Trying to get things set up for the Mars Moon shots coming up in August.

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Alright, so, if I understand it correctly:

You took the above picture of the Moon at 300 mm on your zoom, at ISO 100,
at a speed of 1/2500s and aperture of ƒ5.6.

1. The ISO is just fine.
2. The aperture should have been around the sweet point of your lens: ƒ8 ~ ƒ16
3. This ƒ change would have brought your speed 2 stops +/- slower without any
•••cost yet. So far, so good!

What I need to know now is: What metering system you were using?

And please, post a full frame of that jpeg shot.

Kodiak said:

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Alright, so, if I understand it correctly:

You took the above picture of the Moon at 300 mm on your zoom, at ISO 100,
at a speed of 1/2500s and aperture of ƒ5.6.

1. The ISO is just fine.
2. The aperture should have been around the sweet point of your lens: ƒ8 ~ ƒ16
3. This ƒ change would have brought your speed 2 stops +/- slower without any
•••cost yet. So far, so good!

What I need to know now is: What metering system you were using?

Click to expand...

Darn I'm so new I don't know I'm guessing it was the camera metering setting.

I believe it was either p-s-a on the camera dial don't remember.
Is that what you are asking?

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Take it easy!

" … it was the camera metering setting."

OK. What are the camera settings? there are three options on my cameras:
spot, ponderate central and matrix.

Which one did you use?

P, S, A, are referred to as Modes! …that's another thing!

Kodiak said:

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Take it easy!

" … it was the camera metering setting."

OK. What are the camera settings? there are three options on my cameras:
point, ponderate central and matrix.

Which one did you use?

Click to expand...

Where do i look for that setting in menu?

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STOP! leave the menu…

Look in the instruction manual, somewhere in the first pages there are descriptions
of all the buttons on your camera.

Find where is your metering selector and tell me the selected option…

O.K. Looking now

Its set on Matrix