I have a Sony a6300 and Sony a7r iii. Both bodies are mainly used for extreme macro studio work, where sensor dust is a nightmare due to streaks in postprocessing stacks. To overcome this, I have obtained a Kipon EOS NEX adapter, glued a filter ring inside and attached a 43mm UV filter (7 second video behind the link). It works brilliant and my sensor stays spotless.
Disadvantage is that there is zero control with this adapter: no aperture, no AF, no electronics inside. I'd like to have a similar 'seal' with an adapter that can at least close the aperture blades. I don't need AF because I'd like to use the camera with Zeiss EF lenses, but aperture control would be very handy then. I know I can close them using the 'DoF, unmount lens on Canon EOS'-trick, but it is inconvenient each time you want to change the aperture.
I ordered the Yongnuo Smart Adapter EF-E mount, but the inside is plastic (likely PE or PP, which is a nightmare to glue) and oval-shaped so getting a round filter ring inside and seal any opening with epoxy glue is likely also very difficult.
So basically I am looking for an adapter that has the (by coincidence) suitable shape on the inside to glue a filter ring and protect the sensor from dust when the adapter stays on the camera. Several hours of googling didn't help and I'm out of ideas...
Disadvantage is that there is zero control with this adapter: no aperture, no AF, no electronics inside. I'd like to have a similar 'seal' with an adapter that can at least close the aperture blades. I don't need AF because I'd like to use the camera with Zeiss EF lenses, but aperture control would be very handy then. I know I can close them using the 'DoF, unmount lens on Canon EOS'-trick, but it is inconvenient each time you want to change the aperture.
I ordered the Yongnuo Smart Adapter EF-E mount, but the inside is plastic (likely PE or PP, which is a nightmare to glue) and oval-shaped so getting a round filter ring inside and seal any opening with epoxy glue is likely also very difficult.
So basically I am looking for an adapter that has the (by coincidence) suitable shape on the inside to glue a filter ring and protect the sensor from dust when the adapter stays on the camera. Several hours of googling didn't help and I'm out of ideas...