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<blockquote data-quote="voxmagna" data-source="post: 584594" data-attributes="member: 38477">Wow I didn't expect so many helpful replies.The D750 has to be powered to raise the mirror. It is kept up by battery power and the reason why they want you to have a charged battery else it could drop down unexpectedly whilst you have the cleaning tool over the sensor. Hence my caution using the Bulb open shutter. But sensibly you should check the battery level first and clean any dust as quickly as possible.I've ordered an led illuminated sensor magnifier loupe to try because I think if you can't see the sensor surface you are cleaning in the dark. I hadn't appreciated the downside of using my vacuum cleaner to suck out dust! However, remember that if the vacuum orifice at the end of a soft tip can be small compared to the space it is used in. The force to extract dust close to the suction tip will be high compared to the forces needed to pull in dust some distance away. Your camera dust cleaning kit will be a clear ziplock seal bag with a fine air filter patch through which you move the suction tip. Hmm, I will try and make something or some dslr cleaning service already does it that way.</blockquote>

[QUOTE="voxmagna, post: 584594, member: 38477"] Wow I didn't expect so many helpful replies. The D750 has to be powered to raise the mirror. It is kept up by battery power and the reason why they want you to have a charged battery else it could drop down unexpectedly whilst you have the cleaning tool over the sensor. Hence my caution using the Bulb open shutter. But sensibly you should check the battery level first and clean any dust as quickly as possible. I've ordered an led illuminated sensor magnifier loupe to try because I think if you can't see the sensor surface you are cleaning in the dark. I hadn't appreciated the downside of using my vacuum cleaner to suck out dust! However, remember that if the vacuum orifice at the end of a soft tip can be small compared to the space it is used in. The force to extract dust close to the suction tip will be high compared to the forces needed to pull in dust some distance away. Your camera dust cleaning kit will be a clear ziplock seal bag with a fine air filter patch through which you move the suction tip. Hmm, I will try and make something or some dslr cleaning service already does it that way. [/QUOTE]

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