174MMC ambglow and banding in DP shot

frans lalleman

Hi all,

I tested last night my new camera but have some issues with ambglow and banding.

Camera 174 MMC at -20

C11 at f10

Filter Baader UHC-S

exposure 120 x 5 secs (sequence generator pro)

Dark frame substraction and Bias no Flats

hope to find some help here

Thx in advance

Frans

Sam@ZWO

There is such noise with 174

did you stack with AS!2?

AS!2 has a feature to get rid of vertical or horizontal artifacts

pask

Frans Lalleman wrote:
Hi all,

I tested last night my new camera but have some issues with ambglow and banding.

Camera 174 MMC at -20

C11 at f10

Filter Baader UHC-S

exposure 120 x 5 secs (sequence generator pro)

Dark frame substraction and Bias no Flats

hope to find some help here

Thx in advance

Frans

Hi Frans,

frankly speaking, there is, usually a bit amp glow but not like your image.

See for example my pictures here on this forum (http://zwoug.org/viewtopic.php?f=22&t=6286). For example of North America:

http://zwoug.org/viewtopic.php?f=22&t=6326

With every single exposures of 60 seconds.

Are you sure your dark frame and bias are good enough?

My ASI174MM is not cooled!

Regards,

Pasquale