Sigma 70-300 not working
Posted 26/06/2014 - 17:43 - Helpful Comment
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I experienced a similar problem with mine. I found that cleaning the contacts every so often normally resolved the problem. A lint free cloth is the best thing to use. Also, switching the camera off, taking the lens off and refitting it had the desired effect. Not terribly convenient, though!!
Posted 26/06/2014 - 18:12 - Helpful Comment
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If there's an aperture ring, also double check it is still set to "A".
Best regards, John
Posted 26/06/2014 - 20:31
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LabradorMick2 wrote:
I experienced a similar problem with mine. I found that cleaning the contacts every so often normally resolved the problem. A lint free cloth is the best thing to use. Also, switching the camera off, taking the lens off and refitting it had the desired effect. Not terribly convenient, though!!
I experienced a similar problem with mine. I found that cleaning the contacts every so often normally resolved the problem. A lint free cloth is the best thing to use. Also, switching the camera off, taking the lens off and refitting it had the desired effect. Not terribly convenient, though!!
johnriley wrote:
If there's an aperture ring, also double check it is still set to "A".
Thanks very much Michael and John i've cleaned the contacts and everything is fine now
If there's an aperture ring, also double check it is still set to "A".
Posted 26/06/2014 - 23:25 - Helpful Comment
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I've had the same experience. Partially undoing the lens, then clicking it home positively has fixed the problem.
Posted 27/06/2014 - 10:59 - Helpful Comment
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One of the reasons for buying a Sigma (not).
Pentax K1-ii and MZ6
Pentax Lenses 28-80 F, 300 DA*, 80-200 F, 35 F2.4 AL, M50 F1.7, 28-105 DFA, 20 F4 SMC
ONE UNITED Member
Pentax Lenses 28-80 F, 300 DA*, 80-200 F, 35 F2.4 AL, M50 F1.7, 28-105 DFA, 20 F4 SMC
ONE UNITED Member
Posted 27/06/2014 - 11:53 - Helpful Comment
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Had this happen with a number of my lenses now. Quick clean of the terminals and all is good. Its no big deal.
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