Hi.If a Heated dry box helped a bit, most likely you had humidity and/or fungus.Glad you could make it work.There is always a way to make a quick test:The front element is usually the focus fine tuner. And if it is tilted or disaligned, then the imag...
Hello.Sorry for reopening this but I am under the impression that either we are getting too technical or something is way out of what was indented here...Izzy: Your lens sucks at 200mm f/2.8 Period!Unfortunately, there is no need for a 100% perpendic...
