Since you are a Canon and Nikon user who have a plenty of EF and AF-S lenses in your arsenal, but now you are eagerly making your mind for recent announced, Sony A9 alright?. Then congratulation! But if you are thinking to buy new E-Mount lenses alongwith Sony A9 then we must say not to invest on buying E-Mount lenses because here we are recommending you two astonishing Adapters that let you use Canon EF lenses or Nikon AF-S lens without switching onto Sony lenses. The only thing you need to do get these adapters with your Sony A9… OK?
FotodioX Canon EF Lens to Sony E-Mount Camera Pro Fusion Smart AF Adapter
If you buy this adapter means you are buying very precious thing for Sony A9. Yes we are very happy to recommend you this inexpensive yet powerful FotodioX Canon EF Lens to Sony E-Mount Camera Pro Fusion Smart AF Adapter that lets you use you Canon EF lenses on this Full frame Sony E-Mount Camera. This very versatile adapter enables autofocus and auto exposure with EF lenses, plus allows adjustment of the aperture from the camera controls. The adapter will guarantee infinity focus and it features a removable tripod foot with a 1/4″-20 socket. The construction work of this adapter is done with brass with a stainless steel finish.
Buy at B&H
Nikon F Lens to Sony E-Mount Camera Auto Lens Adapter
With this adapter you can use Nikon AF lenses in this Sony A9 camera. This brilliant adapter enables Auto exposure as well as the ability to control the aperture from the camera body, while using supported G-type and E-type lenses from Nikon. This smart adapter lets you use Autofocus but only for photography, not video. Thankfully, the AF system is fastest and very accurate when used with Sony A9 camera. Select Nikon D-type lenses support auto exposure, aperture control, and Exif data.
Buy at B&H