Has anyone found an idiot's guide, preferably a table, detailing what functionality is available from various lenses when coupled with an A-mount adaptor to the NEX line of E-mount cameras? I haven't so I thought I'd try to pull together the available information to try and find out what's possible and what's not when it comes to mounting non-native lenses on a NEX body. Please feel free to correct me where I've got it wrong and point out any omissions.
The native E-mount lens system is still limited but, to their credit, Sony do offer two adaptors. The basic one is the LA-EA1
This offers "Auto Exposure support with aperture mechanism" and, with firmware 02
and compatible firmware in the camera offers that the "SAM and SSM lenses support auto focus when used with the NEX camera" with the following lenses:
- DT 18-55mm F3.5-5.6 SAM (SAL1855)
- DT 28-75mm F2.8 SAM (SAL2875)
- DT 55-200mm F4-5.6 SAM (SAL55200-2)
- DT 30mm F2.8 Macro SAM (SAL30M28)
- DT 35mm F1.8 SAM (SAL35F18)
- DT 50mm F1.8 SAM (SAL50F18)
- 85mm F2.8 SAM (SAL85F28)
- Vario-Sonnar T* 16-35mm F2.8 ZA SSM (SAL1635Z)
- Vario-Sonnar T* 24-70mm F2.8 ZA SSM (SAL2470Z)
- Distagon T* 24mm F2 ZA SSM (SAL24F20G)
- 70-200mm F2.8 G (SAL70200G)
- 70-300mm F4.5-5.6 G SSM (SAL70300G)
- 70-400mm F4-5.6 G SSM (SAL70400G)
- 300mm F2.8 G (SAL300F28G)
Note: With an A-mount lens attached, the auto focus speed will be slower than when an E-mount lens is attached. It takes approximately 2 to 7 seconds (based on Sonyâ€™s measurement standard) and may vary depending on the subjects or brightness of the shooting environments.
is geared to lenses other than the SAM and SSM ones above.
According to the specifications
- Full-time continuous Phase Detect AF for A-mount lenses on E-mount camera bodies
AF not available with STF lenses and teleconverters
- AE with all A-mount lenses except teleconverters
Aperture setting for video capture is fixed at the maximum aperture of the lens or F3.5, whichever is lower (AF-C)Note: "Minolta Xi lenses are not compatible" with the LA-EA2.
With the information plucked from various sources I hope the above is a fair summary. It still isn't very user friendly as it still took me a while to realise that the the lack of an ultra-wide lens for the NEX cameras can (I think) be circumvented by using the DT 11-18mm f/4.5-5.6 plus the LA-EA2. Not something I'd particularly want but until and if Sony produce an ultra-wide E-mount lens I guess it is the only way to go.
One would only expect Sony to detail compatibility with existing Sony/Minolta A-mount lenses so what functionality is available is available when using either adaptor and a NEX body with third party A-mount lenses? I'll leave answering that one to those who actually own the hardware.