Compatibility issue with Tamron 28-75 ?

Wheatfield · 12-25-2010, 10:13 AM

If it's new and doesn't work, send it back for replacement.

aragondina · 12-25-2010, 11:25 AM

Since you have the return option, I would take it back to the shop and test the lens on another body, and if they have another copy, try that on your K5. Maybe even look at the Sigma 24-70 f2.8. It's a big beast, but a great lens.

I think all older 3rd party lenses are going to have issues as far as compatibility till the firmware catches up. The PK mounts don't turn over as much as the Canon or Nikon so you are more likely to get an older copy sitting in the store. Anything with HSM "should" work (like your 70-200) as they are a newer design, but they are more expensive.

snostorm · 12-25-2010, 08:15 PM

Hi kamui,

I bought my Tamron 28-75 new with my DS in 2005, and it works as expected with my K-5. I doubt that it would be a firmware issue.

Scott

**WRB** · 12-29-2010, 12:44 AM

i have used several Tamron lenses without issues 17-50, 28-75, 90 on the K5. One quick check would be on another camera body.

kamui · 12-29-2010, 11:14 AM

Sorry I've been away for the past couple of days.
All your replies convinced me to bring the lense back for repair/swap, so that's what I'll do in the next days.
For the record, I tried the aluminium foil trick, but either I didn't managed to do it correctly (very likely) or it wasn't enough to make the lense work. Anyway, it didn't work, but it's not relevant anymore

Thanks again to all of you, your help was much appreciated

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Tamron 17-50mm Issue: Overexposure	d3zzzz	Pentax SLR Lens Discussion	7	09-16-2010 04:42 AM
Sigma EF-530 DG ST compatibility issue with K-x?	chaplinlau	Flashes, Lighting, and Studio	0	04-24-2010 06:40 AM
Tamron Lens Compatibility	jmgacnik	Pentax SLR Lens Discussion	2	07-04-2009 05:47 PM
Tamron 28-75 focussing issue	charlep	Pentax SLR Lens Discussion	0	01-19-2009 02:50 PM
Tamron 28-75mm f/2.8 Focusing Issue	Scout Pro	Pentax SLR Lens Discussion	3	04-15-2008 07:46 PM

12-25-2010, 10:13 AM	#16
Wheatfield Moderator Join Date: Apr 2008 Location: The wheatfields of Canada Posts: 15,981	If it's new and doesn't work, send it back for replacement.

12-25-2010, 11:25 AM	#17
aragondina Senior Member Join Date: Oct 2009 Photos: Albums Posts: 117	Since you have the return option, I would take it back to the shop and test the lens on another body, and if they have another copy, try that on your K5. Maybe even look at the Sigma 24-70 f2.8. It's a big beast, but a great lens. I think all older 3rd party lenses are going to have issues as far as compatibility till the firmware catches up. The PK mounts don't turn over as much as the Canon or Nikon so you are more likely to get an older copy sitting in the store. Anything with HSM "should" work (like your 70-200) as they are a newer design, but they are more expensive.

12-25-2010, 08:15 PM	#18
snostorm Veteran Member Join Date: Oct 2006 Location: Chicago suburb, IL, USA Posts: 1,535	Hi kamui, I bought my Tamron 28-75 new with my DS in 2005, and it works as expected with my K-5. I doubt that it would be a firmware issue. Scott

12-29-2010, 12:44 AM	#19
WRB Site Supporter Join Date: Sep 2006 Location: Oregon Photos: Gallery Posts: 117	i have used several Tamron lenses without issues 17-50, 28-75, 90 on the K5. One quick check would be on another camera body.

12-29-2010, 11:14 AM	#20
kamui Inactive Account Join Date: Dec 2010 Posts: 5 Original Poster	Sorry I've been away for the past couple of days. All your replies convinced me to bring the lense back for repair/swap, so that's what I'll do in the next days. For the record, I tried the aluminium foil trick, but either I didn't managed to do it correctly (very likely) or it wasn't enough to make the lense work. Anyway, it didn't work, but it's not relevant anymore Thanks again to all of you, your help was much appreciated