120 f4 macro LS - dust and warranty

[NNN636594888175148588]

Hello everyone

First post here

Does anyone know if dust in lenses that affect picture quality is covered under Phase One warranty?

With my Schneider 120 LS blue ring I can clearly see dust within rear lens group and on pictures shot at f8 and smaller apertures dust is very noticeable

Please share your experience

Note my warranty is still on and valid till July 2022

Thanks
rawlit

[Jon]

There are a few things to look at here...

First, dust in the lens will not show in an image in the form of spots. If you are seeing dust spots on your image it is dust that is on the IR filter of the back.

Dust in the lens rarely affects image quality, and will build up over time with any lens. But depending on the type/size of dust, it could be indicative of shutter wear and would be worth investigating with your Phase one dealer. Whether or not its warranty would be determined then.

[NNN637333507010608945]

great!