My experience with the lenses from various manufacturers have been of mixed nature. Certainly I have developed a certain liking to some glass and neutrality for the others. Everything you are going to read about these lenses on this website is my personal opinion and although I have tried my best to keep them as much unbiased as I can, Still my inclination to certain brands or models might be visible. That being said I can assure you that I receive no commission or any favor from the photography gear manufacturers I talk about on this blog. My sole intention is to help out my viewers in making their purchase decisions.