Tamron 28-75mm F2.8 AF XR Di LD Repair question

muzee · 05-10-2021, 07:57 AM

Hello everyone,

I haven't posted in a while, but need some input. I have the Tamron 28-75 2.8 and it's not nailing focus any longer. This is tested on the K-01 and the KP. Previously, it worked well and produced good results.

Any options / suggestions for this repaired? Would it be worth it? DIY? ! called one repair center nearby (which previously did warranty work for Pentax) and they said they don't look at Tamron. The lens is out of warranty.

Thanks.

**AlwaysAl** · 05-10-2021, 08:45 AM

Hi Muzee,
As a suggestion, you might contact Amplis Photo. They are the distributors for Tamron in Canada.

Service - Amplis

muzee · 05-10-2021, 09:03 AM

Originally posted by AlwaysAl

Hi Muzee,
As a suggestion, you might contact Amplis Photo. They are the distributors for Tamron in Canada.

Service - Amplis

Thanks. I've contacted them as well.

johnyates · 05-10-2021, 09:56 AM

I've had very poor results from Amplis Photo and would not recommend them.

muzee · 05-10-2021, 10:39 AM

Originally posted by johnyates

I've had very poor results from Amplis Photo and would not recommend them.

Any suggestions then?

Not a Number · 05-10-2021, 06:29 PM

Looks like Amplis is the Tamron repair center in Canada:

Repair Centres - Tamron

**caliscouser** · 05-10-2021, 06:56 PM

I can't see it being economic to repair this lens.

Have you tried cleaning the lens contacts.

It might be cheaper to sell it as a manual focus lens and buy another one.

kypfer · 05-20-2021, 07:40 AM

Depending on the severity of the problem, it may be worthwhile trying the a/f adjustment procedure in the camera, p63 in the KP manual, not sure the K-01 has the option. I managed to "re-vitalise" my Tamron 18-200mm like this when I noticed it wasn't quite getting bugs and such spot on, though it seemed adequate enough in the wider world.

tibbitts · 05-29-2021, 09:21 AM

Since the K-01 was mentioned I assume even CDAF is failing. I don't understood why PDAF has always been considered more accurate, even before the on-chip variety was introduced. For me CDAF has always been vastly superior, especially with zooms where it's often not possible to use one PDAF focus adjustment for all focal lengths.

05-10-2021, 07:57 AM	#1
muzee New Member Join Date: Feb 2013 Posts: 18	Tamron 28-75mm F2.8 AF XR Di LD Repair question Hello everyone, I haven't posted in a while, but need some input. I have the Tamron 28-75 2.8 and it's not nailing focus any longer. This is tested on the K-01 and the KP. Previously, it worked well and produced good results. Any options / suggestions for this repaired? Would it be worth it? DIY? ! called one repair center nearby (which previously did warranty work for Pentax) and they said they don't look at Tamron. The lens is out of warranty. Thanks.

05-20-2021, 07:40 AM	#8
kypfer Pentaxian Join Date: Jan 2018 Location: Jersey C.I. Posts: 2,538	Depending on the severity of the problem, it may be worthwhile trying the a/f adjustment procedure in the camera, p63 in the KP manual, not sure the K-01 has the option. I managed to "re-vitalise" my Tamron 18-200mm like this when I noticed it wasn't quite getting bugs and such spot on, though it seemed adequate enough in the wider world. Last edited by kypfer; 05-20-2021 at 07:41 AM. Reason: typo

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05-10-2021, 08:45 AM	#2
AlwaysAl Loyal Site Supporter Join Date: Mar 2007 Location: West GTA, Ontario, Canada Photos: Gallery \| Albums Posts: 486	Hi Muzee, As a suggestion, you might contact Amplis Photo. They are the distributors for Tamron in Canada. Service - Amplis

05-10-2021, 09:03 AM	#3
muzee New Member Join Date: Feb 2013 Posts: 18 Original Poster	Originally posted by AlwaysAl Hi Muzee, As a suggestion, you might contact Amplis Photo. They are the distributors for Tamron in Canada. Service - Amplis Thanks. I've contacted them as well.

05-10-2021, 09:56 AM	#4
johnyates Pentaxian Join Date: Aug 2011 Location: Saskatoon, SK Photos: Albums Posts: 1,330	I've had very poor results from Amplis Photo and would not recommend them.

05-10-2021, 10:39 AM	#5
muzee New Member Join Date: Feb 2013 Posts: 18 Original Poster	Originally posted by johnyates I've had very poor results from Amplis Photo and would not recommend them. Any suggestions then?

05-10-2021, 06:29 PM	#6
Not a Number Moderator Join Date: Mar 2012 Location: Venice, CA Posts: 9,626	Looks like Amplis is the Tamron repair center in Canada: Repair Centres - Tamron

05-10-2021, 06:56 PM	#7
caliscouser Site Supporter Join Date: Sep 2014 Location: SF Bay Area, CA Photos: Albums Posts: 1,037	I can't see it being economic to repair this lens. Have you tried cleaning the lens contacts. It might be cheaper to sell it as a manual focus lens and buy another one.

05-29-2021, 09:21 AM	#9
tibbitts Pentaxian Join Date: Apr 2007 Location: Oklahoma USA Posts: 2,132	Since the K-01 was mentioned I assume even CDAF is failing. I don't understood why PDAF has always been considered more accurate, even before the on-chip variety was introduced. For me CDAF has always been vastly superior, especially with zooms where it's often not possible to use one PDAF focus adjustment for all focal lengths.

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