calibrate objective

Started 3 months ago | Discussions thread
lehill
lehill Veteran Member • Posts: 6,462
Re: calibrate objective

Steph1974 wrote:

Hi am stephanie from Holland.

I found out that my sony a58 isn't focusing good with my objective.

I sent it with a friend to try to calibrate it. But he said it wasn't possible.

I make pictures of active police dogs . And im really sad i cant make good pictures anymore .

I have a tamron 70 200 2.8

Please give me good hopes.

I dont have money to buy new objectives ore camera.

Sorry for my bad English ☺

Some Sony SLT & DSLR cameras have a calibration function called AF Micro Adjustment. I don't think your A58 has this function - check your user manual.

I have a lot of A-mount lenses from Sony/Tamron/Sigma/Minolta. Only one lens+camera combination has ever needed AF MIcro Adjustment (only a small amount was required). All the other combinations I've tried are fine.

If your camera+lens can focus OK on a stationary object in bright sunlight then AF Micro Adjustment cannot fix the problem you are having. There can be many other causes so a sample photo with full EXIF data would be helpful.

If you truly have a problem with your lens+camera combination, then you must send the camera AND lens to Tamron to be calibrated together. This is a big burden for the photographer.

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Lance H

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