The need for a UV/IR filter on ASI2600MC Pro

Will I have to get a UV/IR filter to put on my new ASI2600MC Pro? A good friend said i MUST.

Hello

The Protect window is IR CUT

Can I have the curves for this filter?

you can find this in the 2600 manual

I have to use an IR/UV cut filter on my 2600 or I get a whole lot of gradients. Once the filter is on the gradients go away.

Tech@ZWO
That chart looks just ever UV/IR CUT filter I’ve looked up. Examples are for 2in filters Optolong