https://community.usa.canon.com/t5/EF-RF-Lenses/EF-50mm-f-1-2L-USM-dust-maybe-on-inside-glass/m-p/489543#M32456 <P>Hi Brenden and welcome:</P> <P>Dust in a lens is not going to be an issue, as any lens focusing distance it not close enough to register the dust.&nbsp; Getting dust into a lens is almost inevitable, especially if it extends to focus or zoom because the air moving in and out of the lens pulls dust with it. <BR />What <EM>will</EM> impact your photos will be dust on the sensor of your camera and they will show up as dark blobs in your images.</P> Wed, 24 Jul 2024 03:52:18 GMT Tronhard 2024-07-24T03:52:18Z https://community.usa.canon.com/t5/EF-RF-Lenses/EF-50mm-f-1-2L-USM-dust-maybe-on-inside-glass/m-p/489522#M32452 <P>He there, I just bought this lens from Japan since it's usually your best option for buying a used lens. Overall lens looks great but there is 2 small dust like spots on the inside glass. I took some test shots and haven't noticed anything but was wondering if anyone has ran into this. Should I leave it or maybe even see if canon can clean for a decent price.</P><P>I have photos I can send.</P> Wed, 24 Jul 2024 00:47:07 GMT https://community.usa.canon.com/t5/EF-RF-Lenses/EF-50mm-f-1-2L-USM-dust-maybe-on-inside-glass/m-p/489522#M32452 brenden 2024-07-24T00:47:07Z https://community.usa.canon.com/t5/EF-RF-Lenses/EF-50mm-f-1-2L-USM-dust-maybe-on-inside-glass/m-p/489543#M32456 <P>Hi Brenden and welcome:</P> <P>Dust in a lens is not going to be an issue, as any lens focusing distance it not close enough to register the dust.&nbsp; Getting dust into a lens is almost inevitable, especially if it extends to focus or zoom because the air moving in and out of the lens pulls dust with it. <BR />What <EM>will</EM> impact your photos will be dust on the sensor of your camera and they will show up as dark blobs in your images.</P> Wed, 24 Jul 2024 03:52:18 GMT https://community.usa.canon.com/t5/EF-RF-Lenses/EF-50mm-f-1-2L-USM-dust-maybe-on-inside-glass/m-p/489543#M32456 Tronhard 2024-07-24T03:52:18Z https://community.usa.canon.com/t5/EF-RF-Lenses/EF-50mm-f-1-2L-USM-dust-maybe-on-inside-glass/m-p/489544#M32457 <P>Greetings,</P> <P>Dust on the inside the lens or on the inside of the front lens objective does not usually interfere with image quality.&nbsp; If it bothers you that much, you can look into getting it cleaned and calibrated.&nbsp;&nbsp;</P> <P>Canon offers these services.&nbsp; Getting service for gray market items is ultimately up to the servicing facility.&nbsp; If they have the tools and equipment to service it, they can likely help.&nbsp; Normally a product has to be registered in the My Canon portal to be eligible.&nbsp; Since its possible a product cannot be serviced due to (for example) parts availability, buying products intended for sale in another country or region&nbsp;is not something I would recommend.&nbsp; &nbsp; It may not be the "best option" if you need support or repair.&nbsp;&nbsp;</P> Wed, 24 Jul 2024 03:55:10 GMT https://community.usa.canon.com/t5/EF-RF-Lenses/EF-50mm-f-1-2L-USM-dust-maybe-on-inside-glass/m-p/489544#M32457 shadowsports 2024-07-24T03:55:10Z https://community.usa.canon.com/t5/EF-RF-Lenses/EF-50mm-f-1-2L-USM-dust-maybe-on-inside-glass/m-p/489599#M32463 <P>Don't worry about it but put a top quality protecto filter on that big front element so you don't have to ever clean it. Clean the filter instead.</P> Wed, 24 Jul 2024 14:12:51 GMT https://community.usa.canon.com/t5/EF-RF-Lenses/EF-50mm-f-1-2L-USM-dust-maybe-on-inside-glass/m-p/489599#M32463 ebiggs1 2024-07-24T14:12:51Z