I've bought this lens used for nearly 80€, so I was not expecting the
perfection. The very light and compact plastic body confirms the price
impression. Nevertheless I've hoped to use it stopped down 2 steps, at
f/4, on my full frame Canon 5D. At this aperture the image quality is
very
good except a single corner (upper left) where some blurring occur.
I've used also in the day, and I find this lens a pleasure to use. The
image quality is easily visible to be by far better respect to zoom
lenses, such as my Sigma 18-200 f/3.5-5.6. At the same F.L. and
aperture, the 50 mm has pinpoint details. Higly advised.
For little better performance you may consider the Canon 50 mm f/1.4.
The images below
better show the behaviour. And here are some shots made with this lens:
Milky Way Panorama,
Cygnys,
Southern Milky Way,
Scorpius,
Click on the image to get a full res version
Click on the image to get a full res version -
click
here for the full image and tech details (Canon 5D + 50 mm f/4, 1h
exp)
CCD Inspector analysis of the Cygnus image.