6 replies to this topic

[DavidCooper]

Hello
This gradient can´t be removed with ABE or DBE
this is a bad flat ?

Thanks

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Edited by DavidCooper, 17 January 2021 - 05:50 AM.

[maxsid]

You hit a tree?

[DavidCooper]

Why ? no man, nothing arround me, this is my first time see this gradiant, i want to know this problem

Edited by DavidCooper, 17 January 2021 - 06:38 AM.

[DavidCooper]

This image taken with canon60d astro modified + cls clip + 100 macro at F4 100x90s 

i taked another time 50 darks 40 flats 50 bias and i stacked them in pixinsight with WBPP but always the same problem 

 

Can any one help me please ?

[RogerM]

Looks to me like light infiltration into the lens....any nearby building lights or moving cars?

[DavidCooper]

Looks to me like light infiltration into the lens....any nearby building lights or moving cars?

I am above a building and nothing arround me but i am in bortle 8, this is why i used CLS filtre clip

[DavidCooper]

i think the cls filter cant remove light pollution

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