Not too long ago I took the decision to supplement my Olympus EM5 with a full frame camera and purchased a Sony A7R. It was the smallest and most compact option on the market for full frame at the time. I really like Sony cameras for their colour handling (I also have an RX10) and the A7R is no exception. But one of the other features of the Sony is that I can easily “bolt on” almost any lens using an adapter.
In the past, as much as I like the Sony cameras, their lenses have been a bit of a let-down. The choice of focal lengths is limited and the image quality has suffered into the corners. With this in mind I opted to purchase Canon EF lenses which I am familiar with having previously owned a Canon 5D MKII.
My lens choice was the 16-35 L f/4.0, the 24-70 L f/4.0 and a telephoto. I say telephoto as I really wasn’t sure which lens I wanted. As it turned out I finally went for the 70-200 L f/4.0 in the knowledge that this was a super lens and good value for money. Yes it was quite large and heavy but with a lens collar fitted I could expect good results when mounted on a tripod.
Unfortunately my experience of the 70-200 lens was not what I expected. Most of the time, probably 80%, I achieved great images. They were sharp, especially into the corners of the frame and the image quality was excellent at any aperture. This is the sort of lens that you want, where you can simply ignore the aperture and focal length from the perspective of image quality.
The problem with the other 20% of images though was quite an unusual one and occurred quite randomly. I could shoot a sequence of images using the same settings and without touching the camera, some would display the problem whilst others wouldn’t. The problem was that parts of the frame would be in focus whilst other areas would be blurred. In some instances the blurred area would be in the middle of the frame but the foreground and distance would be sharp. You can see an example below.
In the end the lens was sent back for a refund and a new lens purchased. Full marks to WEX Photographic for their service. In my next post I will explain which lens I purchased – it might come as a surprise.
Great news also. Lenscraft is back up and running on the new website host.