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.
The Minolta MD 100mm 1:2.5 is a small and affordable lens which delivers a surprisingly good performance on the Sony a7 series. Read my in-depth review to decide if it could be a good addition to your camera bag.
Close Focusing Distance from the sensor
Number of aperture blades
The Minolta MD 2.5/100 usually sells for around $150 used at ebay.com (affiliate link). In Germany you can buy it used for around 140€at ebay.de (affiliate link).
You can find all images shown in this image in full resolution in this album.
As I am writing this blog post I am on my way back from the island of Madeira where I spent a week with my friend Matt. I enjoyed the trip a lot so I would like to share my experience and my favorite pictures and photo spots with our readers.
When I decided to use only my 45-years-old Minolta MC 1.7/55 in February I had only one basic idea: I wanted to get out of my comfort zone because I know that I improve my skills much faster in anything if I can’t rely on my routines. And I guess I was also curious how I would fare without all the fancy gear I normally use.
During the project I tried to take pictures everyday and I also created additional challenges for myself: One day I only allowed myself to take 5 pictures and on another I had to photograph in conditions I had little experience in.
I am a gear head. How do I know? Because I own about a dozen normal lenses.
Usually I enjoy the choice I have but I was asking myself what would happen if I had no choice and could use only one lens for a whole month? There is only one way to find out and so I decided that I would limit myself to the Minolta MC Rokkor 1:1.7 55mm which is 45-years-old and cost me $25.
When I started the project I was curious how it would affect my photography. I have always progressed the fastest when I was outside of my comfort zone and I expected that this project would give me many experiences outside my comfort zone.
In this post I will recapitulate my experience so far.
Day 1: Black and White
On day one I decided that the lens alone wouldn’t push me outside of my comfort zone enough so I decided to give myself additional challenges each day which would make the project more interesting.
For day one this was photographing in black and white only because color is usually essential for my pictures. I think it worked quite well as did using 55mm for zoo images.