Why check the mileage of a veteran SONY NEX-3

SONY NEX-3 is a true classic, one of the very first cameras of the E-mount system, released back in 2010. Despite its venerable age, this little thing still takes pictures and produces excellent images with its 14.2-megapixel matrix. Many people buy the NEX-3 on the secondary market for mere pennies as a first camera or as a compact device for travel. However, given the age of the model, checking its mileage is the first thing you should do when meeting the seller.

In more than ten years, this camera could have had a dozen owners. It could lie in the closet, or it could work non-stop as a time-lapse camera. The case plastic of these models is quite resistant, so it is absolutely impossible to determine the degree of “fatigue” of the internal mechanisms by their appearance. Only the actual frame counter number will tell you the truth.

Shutter life and mechanical survivability of the first NEX

The bolt system in early NEX models was loud and quite aggressive, with a distinctive double click. The manufacturer did not publish official data on the guaranteed shutter life for the NEX-3, since it was a camera in the entry-level amateur segment. According to statistics from service centers, this mechanism usually withstands about 50,000 - 80,000 operations.

If you find a NEX-3 with up to 20 thousand frames, this is a rare success and an excellent option for purchase. If the counter has exceeded 70 thousand, you should buy the camera only for symbolic money, realizing that the shutter can jam at any moment, and repairs will cost more than the camera itself.

Reading mileage from metadata of old cameras

Despite the fact that NEX-3 stood at the origins of the era of Sony mirrorless cameras, engineers already then incorporated a powerful self-diagnosis system into it. The camera meticulously counts each mechanical shutter operation and writes this value into the MakerNotes service tag, which is part of the EXIF ​​standard in created photographs.

This data cannot be reset or reset. They are "sewn" to the camera's motherboard. To access them, you don't need cables or visits to the specialist - you just need to take one fresh frame and analyze the resulting file.