Intermittent Camera Disconnects on Mac with Older Nikon Models

It was reported that on some Mac systems intermittent camera disconnects were being seen with older Nikon Models (Seen on D3 and D300). We extensively researched this issue and it seemed to be related to the Nikon provided libraries that we use to connect to the cameras and the version of MacOS being used. Testing with newer camera models like the D800 and D750 did not appear to exhibit this problem.

We made significant improvements in our 2.2.5 release and seem to  have eliminated the disconnect problem as best we can tell. We have tested the 2.3.0 release by shooting thousands of images with a D300, D750, and D800 without encountering any disconnects except on the D300 as noted below.

Maximum Shot Count Disconnects

We did find, however, that we could induce disconnects on the D300 by setting the shot count to the maximum allowed when shooting RAW+JPG. For example, with a D300 shooting RAW+JPG Fine-Large the maximum shot count is 15. Setting the Shot Count in the program to 15 we could induce a disconnect typically within a couple of attempts. By reducing the shot count to one or two below maximum we were not able to induce disconnects with our testing; this leads us to believe that the issue is in some way related to the camera itself and not a software issue as our investigation showed that the camera hung on a request from our software. We did not see this issue of disconnecting with a maximum shot count on our other cameras, but cannot guarantee that it could not be an issue.

The maximum shot count is effected by the image type (JPG or RAW) and the image compression. You can determine the maximum shot count by setting the Shot Count to 100 and hitting the shutter release on the program; on the status line at the bottom of the Camera Control Window you will see an information message that states the Shot Count Limited by Camera to XX, where XX is the number it was limited to – we recommend setting a value of at least 2 or 3 less than the maximum to reduce the risk of disconnects should you encounter this problem.

Depending on the Camera and the Version of MacOS the camera will in many cases reconnect and complete the download of images. If desired you can set the “Don’t Show Again” option when the error first occurs and the camera will reconnect and if possible download the remaining images. The reconnect seems to work best on the MacOS Sierra release.

If you should encounter an issue with your camera disconnecting during image download don’t hesitate to contact us for further guidance and assistance.

 

CAMERARC DELUXE VERSION 2.2.2 RELEASE

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This is a small release that adds support for the Nikon D5 Firmware Update 2. Also in this release is a fix for a defect that was causing intermittent crashes when using a D5, D500, or D7500. You can find out more information in the Release Notes.