Have RF lenses had their day ?

Started Jan 5, 2014 | Discussions thread
parallaxproblem Veteran Member • Posts: 5,335
You are forgetting something...

The A7/r bodies have a very different design philosophy from the earlier NEX series: NEX 'embraced' legacy lenses whereas the A7/r bodies are basically built to sell the expensive Sony FE lenses

Even the LA-EA3 and LA-EA4 don't provide particularly satisfactory connectivity to Sony's own A-mount glass, being effectively lazy updates of the LA-EA1 & LA-EA2 (both of which I own) which carry on unfixed all the annoying bugs of the earlier adaptors and provide neither PDAF compatibility with the LA-EA3, nor the newer, more advanced 19-point AF system on the LA-EA4 

If Sony wanted you to use legacy glass on the A7 they would have released their full AF protocols to the third party adaptor builders: they haven't which is why the DEO tech Contax G adaptor still has shaky AF performance and the various EOS adaptors are seemingly rather slow in terms of AF.  Sony would also have released an ultra-wide lens option in the first batch of lens releases since there are already plenty of good 35mm and 50mm RF lenses around, but they didn't...

Sony priced the A7 and A7r low with the expectation of recovering the margin on the lenses (the NEX series bodies were always comparatively more expensive). Of course Sony won't make it so easy for us to use third party RF lenses!

Maybe the A7/r replacements will contain sensors which perform better with legacy glass (after the development costs have been recovered somewhat by the first models and early lens sales), in the same way the NEX-5n offered big improvements in this respect over the NEX-5?

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 parallaxproblem's gear list:parallaxproblem's gear list
Sony Alpha DSLR-A900 NEX5R Sony a77 II
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