Quote:
Originally Posted by JA
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Bear in mind however; the Samyang 35mm f/1.4 is a full-Frame lens and you are using it on the APS-c sensor of the Sony A77. It behaves like a 50mm f/2 in that respect. The APS-c sensor doesn't see all of the full frame image circle and as a result the image quality may not be as degraded at f/1.4 as it would be on a full frame camera. Of course the light collection would be doubled on fullframe and hence the noise less but, you're not concerned of that here.
Best
JA
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Hmm.. not quite like that.
Full frame lens used with APS sensor will collect exactly the same amout of light, and it will still be 35mm FL..
Difference will be in FOV - with APS sensor, fileld will be smaller, but this will not be an issue because image quality in FF corners is probably not great, so you woul want to crop it anuway (and APS sensor does it for you :-) )