Hello everybody!

I've read around the internet that in order to reduce the flickering effect a common technique is to disconnect the lens.

But I was wandering what are the disadvantages of this technique. For example:

• Is it possible that rotating (even a little bit) the lens make the camera loose the focus?
  
• The depth field gained from the manual settings is lost? Since the value becomes "00", it means that actually there is no depth field or it is only a convention to say that the lens is disconnected?
  

The question comes since I have this picture:

[Image: https://i.imgsafe.org/37e68e6.jpg]

It was shot with a Canon EOS 500D (yeah, a little old lady ) 18-55mm, 1/250 sec, f 9.0, iso 100, lens disconnected. The focus doesn't seem great (took automatically before disconnect the lens), don't you think?

Thanks to everybody that will answer and help!

My suggestion would be to forget about all that tricks and just shoot with any aperture you like. The visual Deflicker in LRT4 will perfectly remove any aperture flicker without loss of quality, just try it!