Focusing ring and aperture ring are smooth and fully functional

Collapsing mechanism is smooth and fully functional

Only issue with this lens is the haze present inside, noticeable from the photos. 

Thus making photos shot wider than f/4 become hazy and glowy. 

However, photos shot at f/5.6 and up are not affected and are perfectly fine.

Contact me I can send over some photos shot at different apertures.