www.astrocafe.hk

The difference between sun-gazing and star-gazing: you never know what you are going to get when you watch the sun.
Taken with DMK41 and LS75F unobstructed.

Wow! The image is extremely detail! What scope u are using? How many pieces are there in this Mosaic? Any how many frames are stacked?

willis 寫:Wow! The image is extremely detail! What scope u are using? How many pieces are there in this Mosaic? Any how many frames are stacked?

I used APM 80/480 scope. Actually, this is not a mosaic. The DMK41 cannot capture the whole sun. So I let the sun drift a bit so that every part of the sun was captured in at least some parts of the video.

I stack about 700 frames.

woooow! it's 3D like.

how long is the effective focal length? why you need to stack so many frames?

社長 寫:woooow! it's 3D like.
how long is the effective focal length? why you need to stack so many frames?

f is just 480mm. No one frame captures the whole sun. I had to let the sun drift a bit in my video. Therefore, I need to stack lots of frames.

David 寫:

社長 寫:woooow! it's 3D like.
how long is the effective focal length? why you need to stack so many frames?

f is just 480mm. No one frame captures the whole sun. I had to let the sun drift a bit in my video. Therefore, I need to stack lots of frames.

that's strange, why my exposure through the LS35T (f10) is so short and gain so low (300), so that I just need to stack 10 frames or so, and you need to stack so many even at faster aperture of f6.4?

Wow .... It seems that sun is on fire. Every time, we see the H-alpha's sun. It looks strange but beautiful.
Money, I need more money. my next target is H-alpha .....
It's beautiful.

Lewis 寫:Wow .... It seems that sun is on fire. Every time, we see the H-alpha's sun. It looks strange but beautiful.
Money, I need more money. my next target is H-alpha .....
It's beautiful.

Come to our next solar party. I only need a sunny Saturday morning to make this happen.