I was just curious whether anyone here uses and has had good results with using baffles on ~50mm f1.4 lenses to get better results wide open. The primary reason wide lenses aperture lenses have a "glow" effect or are not sharp/contrasty is because they are not designed for a digital sensor, which is very reflective when light strikes it at wide angles. This causes the light to scatter within the lens and back onto the sensor. Because most legacy lenses are full frame lenses and cast a much larger image circle than the m4/3 sensor, there is a lot of "unused" light that has a potential to scatter and lower the sharpness/contrast of the lens. If you cover the rear element with a black fabric enough so that the image circle produced by the lens just covers the m4/3 sensor, it should block out a lot of this stray light and improve contrast and sharpness of lenses, without affecting meter and the amount of light read by the sensor. This is similar to stopping down the aperture as you get sharper and higher contrast images with legacy lenses, however in this case, you are affecting the metering and the amount of light read by the sensor. I am thinking of trying it on some of my ~50mm f1.4 lenses and comparing them shot at f1.4 with or without a baffle on and compare contrast/sharpness..