Pentax DA* 50-135 SDM
Posted 01/07/2023 - 13:36
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Put it on the camera body, cap on.
Hold the AF button to force the lens to focus while at the same time turn the focusing ring back and forth. You should see the AF light turn on while this happens.
After a while, there's a chance the SDM will become free and so the lens will start to focus correctly.
Hold the AF button to force the lens to focus while at the same time turn the focusing ring back and forth. You should see the AF light turn on while this happens.
After a while, there's a chance the SDM will become free and so the lens will start to focus correctly.
All the gear with no idea
Posted 01/07/2023 - 13:48
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Tryed both ways and still no joy
k5iis sigma 10-20 hsm tamron 17-50 pentax faj 18-35 pentax da 18-135 tokina 20-35 tokina 28-70 atx pro pentax dfa 100 wr
pentax da*50-135 pentax da 55-300 sigma apo 150-500 hsm os
Pentax af aw 1.4 rear converter and a flash
pentax da*50-135 pentax da 55-300 sigma apo 150-500 hsm os
Pentax af aw 1.4 rear converter and a flash
Posted 01/07/2023 - 16:48
Link
Before you try either of the first two suggestions, get a small screwdriver that fits the screwdrive slot in the end of the lens, then keep rotating the screwdriver to drive the lens focus from end to end. Do this for a few minutes. Then try suggestions above. Wakes my dozy lens up every time.
Posted 01/07/2023 - 17:28
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Thanks for all the help
its packed up ready to post on monday for a screwdrive convershion
its packed up ready to post on monday for a screwdrive convershion
k5iis sigma 10-20 hsm tamron 17-50 pentax faj 18-35 pentax da 18-135 tokina 20-35 tokina 28-70 atx pro pentax dfa 100 wr
pentax da*50-135 pentax da 55-300 sigma apo 150-500 hsm os
Pentax af aw 1.4 rear converter and a flash
pentax da*50-135 pentax da 55-300 sigma apo 150-500 hsm os
Pentax af aw 1.4 rear converter and a flash
Posted 01/07/2023 - 18:04
Link
Reso, can you give me details of who you're getting to do the conversion, please, should I need it too?
Posted 01/07/2023 - 21:44
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yes this would be very helpful
JohnX wrote:
Reso, can you give me details of who you're getting to do the conversion, please, should I need it too?
Reso, can you give me details of who you're getting to do the conversion, please, should I need it too?
A question is only easy when you know the answer ..
Posted 04/07/2023 - 18:18
Link
HarisF1 wrote:
Put it on the camera body, cap on.
Hold the AF button to force the lens to focus while at the same time turn the focusing ring back and forth. You should see the AF light turn on while this happens.
After a while, there's a chance the SDM will become free and so the lens will start to focus correctly.
This method seems to also click when you manually focus the lens at a distant object. The lens seems to try and push for that last bit of precise focus, freeing the motor.
Put it on the camera body, cap on.
Hold the AF button to force the lens to focus while at the same time turn the focusing ring back and forth. You should see the AF light turn on while this happens.
After a while, there's a chance the SDM will become free and so the lens will start to focus correctly.
All the gear with no idea
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pentax da*50-135 pentax da 55-300 sigma apo 150-500 hsm os
Pentax af aw 1.4 rear converter and a flash