I have previously owned an n90 and still own a D100. I have just purchased a D300 to upgrade my equipment.

I am having an issue I have never experienced before. When I partially press the Shutter Release Button I get the focus, as usual, but when I press it completely I hear the click but nothing else till I click the Shutter Release Button again.

I feel like a duck out of water with this and do not know how to correct this to a single shot when depressed completely, as with my other camera.


1 Answer 1


One possibility is you have activated mirror lock-up function. Some of the camera operate on this way: On first press of shutter button the mirror lock up. On the second press of shutter button the camera make a photo. You can check for more details in to the manual, page 93

  • 1
    \$\begingroup\$ That was exactly it! Thank you so much for your answer. Know I can use may camera! \$\endgroup\$
    – Marzolk
    Commented Dec 26, 2020 at 20:48
  • 2
    \$\begingroup\$ @Marzolk rather than leave a "thank you" comment, please accept this answer by clicking the checkmate next to the answer. \$\endgroup\$
    – scottbb
    Commented Dec 26, 2020 at 20:56
  • \$\begingroup\$ Good catch Romeo \$\endgroup\$
    – user85781
    Commented Jan 3, 2021 at 19:45

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