Weird A580 camera behaviour at low focal lengths

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Weird A580 camera behaviour at low focal lengths
2 months ago

Hi hopefully someone can help us out here.

We just bought an A580 that was previously only a display model.

Whilst at large focus lengths and close distances the camera performs to an acceptable standard, at focal lengths lower than 55mm and the subject even at a reasonable distance away it is hard to see exactly where focus is centred and even more worryingly most of the sharpness simply disappears even at an aperture of F8.

We aren't novices and have successfully used an A350 for 6 years, but aghast at the results of the 580 we took it to 2 different camera shops and after testing it with 4 different lenses they were of the opinion that at low focal lengths and with even a reasonable distance away the 580 was taking even worse photos than the average mobile phone and said they could offer no explanation as to why especially sharpness just seemed to disappear altogether. The greater the distance the worse the camera performed. They also said that even at larger focal lengths, the camera has a back focus problem, which we also saw from the pix we took.

I have included 2 photos, the first at low focal small distance, the 2nd low focal larger distance. In the larger distance one focus was centred of my face, but its obviously nowhere near and even at F8 the photo looks as if it is "foggy". At 100% true size, the pic looks a mess tbh.

No one we have spoken to so far has a clue what is happening with this camera at low focal lengths, and therefore we don't even know if it is worth repairing. Does anyone here on the forum have a clue ? Any help appreciated

Thanks

Sony Alpha DSLR-A350 Sony Alpha DSLR-A580 Sony SLT-A58
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