16 bit or 8 bit lunar?

[long_arms]

Hello,

This is just a random thread really but the little firefly can run at 16bit mono and still get 30fps.

I got advice before and found out that 16bit has no advantage over 8 bit for things like jupiter.

What about close shots of the moon? (Really close).

Why is 16bit so important for deep sky but not for the moon?

Just interested really.

Dan

[long_arms]

Also if anybody could tell me what the heck a HDR image is? Think it means High dynamic range. How can I give it a go with my images?

Dan

[michael.h.f.wilkinson]

HDR is high dynamic range (more than 8 bits per colour channel or more than 8 bits per pixel for grey level). This is particularly helpful if the dynamic range of the object is high (large difference between the darkest and brightest structures in the image), and the photon count per pixel is high enough to make it matter. In long exposure work, this can certainly be the case, in the very short exposures per frame in planetary imaging, it may not be worth it. The processing should be done in 16 bit or more, as you are adding many frames together and therefore upping the photon count.