Sigma 70-300 not working


autumnlight

Link Posted 26/06/2014 - 17:13
Help please, i attached this lens today on the K5 after not using it for about a week, this is the display that came up, i haven't knocked it or dropped it, shutter won't fire or anything, it's almost as if i've attached a manual lens, thanks in advance if anybody can help


Kind regards Maria

https://www.facebook.com/pages/Maria-Gray-photography/589310071158079?ref=hl

LabradorMick2

Link Posted 26/06/2014 - 17:43
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!!

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johnriley

Link Posted 26/06/2014 - 18:12
If there's an aperture ring, also double check it is still set to "A".
Best regards, John

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autumnlight

Link Posted 26/06/2014 - 20:31
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!!

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
Kind regards Maria

https://www.facebook.com/pages/Maria-Gray-photography/589310071158079?ref=hl

wadna

Link Posted 26/06/2014 - 23:25
I've had the same experience. Partially undoing the lens, then clicking it home positively has fixed the problem.

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walkeja

Link Posted 27/06/2014 - 10:59
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
Last Edited by walkeja on 27/06/2014 - 10:59

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Russ

Link Posted 27/06/2014 - 11:53
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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