There are many good reasons to adapt manual lenses to the Sony A7 series cameras. To do so you need an adapter and this article will help you to choose the right one.
We are three guys from Germany who have adapted manual lenses for many years now. By using several dozen adapters over the years we have learned the hard way, that not all adapters are created equal. We hope that the money we spent on bad adapters will help you to avoid annoying miss-buys we experienced.
In the following two parts we tell you why you need an adapter in the first place, and which issues can arise with adapters. If all you need is the right adapter for your lens you can simply jump to Adapter Manufacturers].
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The shot above can be found in higher resolution here.
With the increased High ISO capabilities of even entry level cameras astrophotography has become available to almost anyone. But if you want your files to show low noise and high dynamic range – or you want to print big – it might be worthwhile using some of the techniques I am going to show you in this article.
I do own a macro lens (Sigma 150mm 2.8) that I use for most of my product shots on this blog, but I rarely take it out for shooting as it is quite bulky and heavy. Nevertheless I like to take a close up shot from time to time so I decided to try out the Kenko and Fotodiox Pro extension tubes, to turn my Loxia 85mm 2.4 into a macro lens.
Since a few people asked this is a short how-to on how I tune my adapters. As you will notice I am far from a perfectionist but so far my method has worked well for me and I think it could solve issues for some of you as well.
Correcting Infinity Focus
Most adapters, not only the cheap ones, are a bit too short. This means that the markings on your lens are off and you can focus your lens behind infinity so the infinity hard stop of your lens won’t work. It makes sense for adapter manufacturers to make their adapters a bit too short because your Sony’s flange focal distance varies a bit and so does lens calibration. If their adapters were exactly as thick as specified there would be quite a few cases were people couldn’t focus at infinity which is way more annoying than a focus scale which is a little off.
But a too short adapter can also have negative impact on the image quality if you use a lens with floating elements. Especially with fast wide angle lenses you can get serious field curvature issues as many users of the Metabones Canon EF adapters have found out.
I was looking for the smallest and lightest notebook possible to accompany me on my trips. It needed to have a great screen, allow me to move files from one external device to another and to do some minor photo editing from time to time. I was looking at the Ultrabooks at first, but they were still to big and heavy for my taste, so I decided to give this unusual device a try…