“If I use this lens on a full frame a7r II will it use all or only part of the sensor and if it only uses part of it, how much is it reduced?”
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Amazingly, the answer from SonyListens below is actually wrong, and will easily confuse readers here! They must've had the new guy answering questions today, or it's a troll pretending to be a Sony rep... This particular lens (the 50mm 1.8 OSS) was designed for use with Sony's APS-C mirrorless cameras, which all have a cropped sensor that is significantly smaller than Sony's full-frame A7 series. Therefore, when you use this lens on the A7 series, there will be a black vignette and barrel distortion on the outskirts of the frame, and so the camera will (probably automatically) crop it to use the center of the image to remove the vignetting. Due to this cropping, the effective resolution will be lowered, meaning that instead of having, say, the usual 42.4 megapixel images from an A7Rii, images made with this lens on that particular camera will use APS-C Mode, and have a maximum resolution of 18 megapixels. This may still be acceptable, if you have a monster camera like the A7Rii, because even cropped files are pretty big at 18 megapixels, but on the lower res A7, and especially the A7S, you may not want cropped images. If you doubt any of this information, in light of Sony's answer here (as of 8/25/2015), all you have to do is google "SEL50F18 on A7" and see sample images. For picture examples, go here: http://www.fredmiranda.com/forum/topic/1258385 TL;DR - this is a crop-sensor lens, and though it CAN be used on your full-frame Sony cameras (FE mount), the image won't cover the full sensor, and you'll end up with a cropped, lower-resolution image.
Sorry, there was a problem. Please try again later.it is going to crop it to an apsc size sensor
Sorry, there was a problem. Please try again later.Yes, it will crop into the sensor 1.5x, but if you use the APS-C crop mode, you can can use the lens as you would on a native APS-C body.
Sorry, there was a problem. Please try again later.It would allow you to take full advantage of the full frame sensor with no issues.
Sorry, there was a problem. Please try again later.Hi, this lens will use the whole sensor. This is a full frame lens fully compatible with the A7R II. Thanks_Mitch
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