Reducing flare from adapter?

[Avotius]

So I am using a Fotodiox Canon EF - Sony FE adapter and I notice a bit of flare sometimes that may be adapter related. The inside of the adapter is painted black but with a glossy paint and I wonder if it is having some detrimental effect.

Has anyone ever tried to do something to "anti-reflecty" their adapters before?

 

[YYV_146]

Which camera is this? The A7 and A7r cameras have some flare issues with point light sources. Adapter champer flare should be pretty distinct...if the problem goes away with a native lens, you could try sticking some electric tape to the inside of the adapter.

 

[Dwig]

I had some significant internal flare issues with a PK>m4/3 adapter that if used with a Pentax 100mm f/4 macro. I found that a disk of black felt to narrow the mount opening (m4/3 is a small format relative to its mount diameter) along with lining the inside of the adapter side walls with black felt helped significantly.