Buying a pioneer: checking the mileage of the SONY SLT-A55V

The SONY SLT-A55V model (with a GPS module, as indicated by the letter V) went down in history as the world's first camera with translucent mirror technology. It made a splash: tiny body, 16.2 megapixel sensor and a fantastic speed of 10 frames per second with working autofocus. This camera literally provoked owners to shoot sports, children and dynamic scenes in long bursts. Because of this, finding a low-mileage example on the secondary market is a task with an asterisk.

Ultra-fast continuous shooting is a huge test for mechanics. Many users have "killed" the shutters of these cameras over a couple of years of aggressive use. Therefore, no matter how clean the rubber bands on the case are, true wear can only be determined by the system frame counter. Buying the SLT-A55V blindly risks a quick and very expensive trip to the service center.

Load on mechanics when shooting 10 frames per second

The SLT-A55V is designed without a bouncing mirror, which significantly reduces vibration. However, the shutter curtains work at their limit, providing those same 10 frames per second. The valve assembly here experiences serious thermal and mechanical overloads during long series.

According to statistics, the A55V mechanism is quite durable and is designed for approximately 100,000 - 120,000 operations. The problem lies in the fact that at a speed of 10 fps this resource burns out very quickly. If the diagnostics show a mileage of 30-40 thousand, you can safely take the camera. But if the figure approaches 90 thousand, you should seriously think about the feasibility of the purchase.

Decoding the MakerNotes tag at home

Sony engineers have laid out a transparent diagnostic mechanism. The camera processor meticulously counts each closing and opening of the curtains. This absolute number (total mileage) is written into the depths of the EXIF ​​data (in a specific MakerNotes section) of each file created by the camera.

The data is protected by hardware: neither formatting the SD card nor returning to factory settings will erase the camera's life history. To obtain this information, you only need the original, unedited image file and the correct software.