Item received with a day ahead of the time provided by Amazon and used with sensor swab. My reflex was giving me blue skies studded with dark spots at f8. A f16 f22 or, of course, it was worse. Cleaning takes 2 minutes as you have to have everything well in hand, check that the battery is full for those who do not have a TLM .... The sensor cleaning itself lasts only 3-4 seconds. And there is a blue sky as blue ... well, if there is no cloud at all. Short, fast, efficient and easy to do. To see exactly what to do, there is video on the net that go very well.
