[Rob Hamlin]

Hi All

Im running an Sbig STF8300M.

Am finding my HA, SII and LRGB flats have a grid pattern running through them.

OIII flats quite oddly, seem far smoother and dont have the issue. Somewhat baffled about this.

The image ive attached below shows what I see on-screen.

The grid pattern seems quite clear and im not entirely sure how big a problem this actually is.

Any feedback thoroughly appreciated

With thanks

Rob Hamlin