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PostPosted: Sun Sep 21, 2014 10:00 am 
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Joined: Mon Jan 18, 2010 3:52 pm
Posts: 2177
Location: The Netherlands
Hi all,

My Tamron 17-50 2.8 is auto foussing very slowly. It takes about 1 sec to go from 1ft-inf. and 3s for a back-and-forth AF. I guess it needs oil somewhere. Can I do this myself (Im quite handy)? As its main use is landscapes, it is not the worst problem but it keeps irritating me so if you think it has to be done for a big amount of $$ -not by me then-, I will live with it then.

Oh, and Ive tried is with both 50D and 350D.

Thanks!

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Ruben

Panasonic DMC-FZ18, Panasonic DMC-FZ28, Canon G5, Canon 350D, Canon 50D + BG-E2N
Tamron 17-50 2.8, Canon EF 70-200mm f/4L USM,
Canon 18-55 II plus lots of Minolta MD/M42 lenses and bodies


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PostPosted: Wed Oct 01, 2014 8:38 pm 
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Joined: Sun Nov 07, 2010 11:55 pm
Posts: 900
Location: SE Texas
I would think contacting Tamron's service department, or an independent camera repair shop, would be wiser than self-service. Lubricant that flows into the electronics, or gets onto the elements or aperture blades, could be a real mess to remediate.

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Canon 7D/5D/40D/1D2N; Nikon F6, D700, FM3A, & Coolpix A; Canon 40mm 2.8 STM, 135L, 50L, 35L, 50mm 1.8 I, 100mm 2.8L Macro, 10-22mm EF-S, 28-135 EF, 400mm 5.6L; Nikkor 50mm 1.2 AI-S, 50mm 1.4G, 50mm 1.8D, 16mm 2.8D Fisheye, 180mm 2.8D, 100-300mm 5.6 AI-S, 18mm 2.8D, Voigtlander 90mm f/3.5 SL II


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PostPosted: Thu Oct 02, 2014 1:20 pm 
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Joined: Mon Jan 18, 2010 3:52 pm
Posts: 2177
Location: The Netherlands
Thanks for the advice. I think you might be right, taking a lens apart is quite dangerous for the wallet if I would do it wrong. Then letting it do is maybe the better bet then.

_________________
Ruben

Panasonic DMC-FZ18, Panasonic DMC-FZ28, Canon G5, Canon 350D, Canon 50D + BG-E2N
Tamron 17-50 2.8, Canon EF 70-200mm f/4L USM,
Canon 18-55 II plus lots of Minolta MD/M42 lenses and bodies


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