https://community.sony.hr/t5/alpha-nex-interchangeable-lens-cameras/my-a7s-2-footage-shows-ring-artifacts/m-p/2245398#M5574 <P>Hi spisko,</P><P>&nbsp;</P><P>This is an abolute normal and wanted effect - it's called Bokeh.</P><P><A href="https://en.wikipedia.org/wiki/Bokeh" target="_blank">https://en.wikipedia.org/wiki/Bokeh</A></P><P>&nbsp;</P><P>So your lens and your camera are absolutely fine.</P><P>&nbsp;</P><P>Cheers</P><P>PD</P> Tue, 25 Oct 2016 06:44:06 GMT Pumpkin_Duke 2016-10-25T06:44:06Z https://community.sony.hr/t5/alpha-nex-interchangeable-lens-cameras/my-a7s-2-footage-shows-ring-artifacts/m-p/2245276#M5573 <P>A7s2 with sony 55mm f1.8</P><P>Hello,</P><P>As you can see on the attached grabs from my video footage, there is some sort of strange circles visible on plain surfaces. &nbsp;They are the most visible when opened up to f 1.8. I can see them on both LCD screen on the camera and computer. Camera was properly exposed for all the test footage I did.</P><P>Do you guys have any idea what's going on here?</P><P>&nbsp;</P><P>From top to bottom:</P><P>f1.8</P><P>f1.8</P><P>f2.2</P><P>f2.5</P><P>f3.2</P><P>f5</P><P><IMG src="https://community.sony.hr/t5/image/serverpage/image-id/341013i50FC3D9426AF2EE2/image-size/original?v=v2&amp;px=-1" border="0" alt="25fps, 1080p, f1.8" title="f1.8" /><IMG src="https://community.sony.hr/t5/image/serverpage/image-id/341014i5625885176F054FD/image-size/original?v=v2&amp;px=-1" border="0" alt="25fps, 1080p, f1.8" title="f 1.8" /><IMG src="https://community.sony.hr/t5/image/serverpage/image-id/341015i9FE0EF7682510688/image-size/original?v=v2&amp;px=-1" border="0" alt="25fps, 1080p, f2.2" title="f 2.2" /><IMG src="https://community.sony.hr/t5/image/serverpage/image-id/341016iDA63AB53740FF632/image-size/original?v=v2&amp;px=-1" border="0" alt="25fps, 1080p, f2.5" title="f 2.5" /><IMG src="https://community.sony.hr/t5/image/serverpage/image-id/341017iCB1F03F3A5662DF9/image-size/original?v=v2&amp;px=-1" border="0" alt="25fps, 1080p, f3.2" title="f 3.2" /><IMG src="https://community.sony.hr/t5/image/serverpage/image-id/341018i7897619FB81D197D/image-size/original?v=v2&amp;px=-1" border="0" alt="25fps, 1080p, f5" title="f 5.jpg" /></P> Mon, 24 Oct 2016 17:48:41 GMT https://community.sony.hr/t5/alpha-nex-interchangeable-lens-cameras/my-a7s-2-footage-shows-ring-artifacts/m-p/2245276#M5573 spisko 2016-10-24T17:48:41Z https://community.sony.hr/t5/alpha-nex-interchangeable-lens-cameras/my-a7s-2-footage-shows-ring-artifacts/m-p/2245398#M5574 <P>Hi spisko,</P><P>&nbsp;</P><P>This is an abolute normal and wanted effect - it's called Bokeh.</P><P><A href="https://en.wikipedia.org/wiki/Bokeh" target="_blank">https://en.wikipedia.org/wiki/Bokeh</A></P><P>&nbsp;</P><P>So your lens and your camera are absolutely fine.</P><P>&nbsp;</P><P>Cheers</P><P>PD</P> Tue, 25 Oct 2016 06:44:06 GMT https://community.sony.hr/t5/alpha-nex-interchangeable-lens-cameras/my-a7s-2-footage-shows-ring-artifacts/m-p/2245398#M5574 Pumpkin_Duke 2016-10-25T06:44:06Z