Tamron Infinity Focus


bforbes

Link Posted 27/01/2013 - 10:58
Can anyone with a Tamron 90mm Adaptall model 52BB offer any advice please.
I noticed yesterday, for the first time, I could not get my copy to focus to infinity.
There appears to be a piece of plastic wedged in the back of the lens. However I'm not sure if it's the remains of something that should be there or a broken piece of an end cover. Plus I don't know if it has anything to do the the infinity focus problem. Any ideas anybody?






Barrie
Too Old To Die Young

http://www.pentaxphotogallery.com/artists/barrieforbes
https://www.flickr.com/photos/189482630@N03/
Last Edited by bforbes on 27/01/2013 - 10:59

Algernon

Link Posted 27/01/2013 - 11:49
I've not got the macro, but on a 28-80mm that bit
doesn't move during either focus of zoom so it's
unlikely to effect inf. focus.

It's probably something that's broken off then cap
as you say.

Does the felt tip lettering indicate it's been
serviced at some point.
Half Man... Half Pentax ... Half Cucumber

Pentax K-1 + K-5 and some other stuff

Algi

bforbes

Link Posted 28/01/2013 - 13:44
As you say Algi, removal of the plastic has made no difference to the problem.

Has anyone had a Tamron Adaptall lens repaired or serviced anywhere lately?
Barrie
Too Old To Die Young

http://www.pentaxphotogallery.com/artists/barrieforbes
https://www.flickr.com/photos/189482630@N03/

Blythman

Link Posted 28/01/2013 - 14:08

Algernon

Link Posted 28/01/2013 - 17:17
bforbes wrote:
As you say Algi, removal of the plastic has made no difference to the problem.

Has anyone had a Tamron Adaptall lens repaired or serviced anywhere lately?

Try the distributor, I've never heard of any independents?
or email the owner of http://www.adaptall-2.org/ he used
to hang around some of the MF forums.

-
Half Man... Half Pentax ... Half Cucumber

Pentax K-1 + K-5 and some other stuff

Algi

bforbes

Link Posted 28/01/2013 - 19:25
Thanks Algi, An email was sent to Intro2020 requesting a guide to cost. I think they may be on a par with JPSS, so I'm not holding out a lot of hope that a repair by them will be cost effective.

After a quick route around the the Adaptall-2 site I could only find repairers in Canada and no contact details, something about the site having been rescued
Barrie
Too Old To Die Young

http://www.pentaxphotogallery.com/artists/barrieforbes
https://www.flickr.com/photos/189482630@N03/

Algernon

Link Posted 28/01/2013 - 20:01
Somebody grabbed the original site when the registration
expired, probably thought they could sell it to Tamron....
happened to Microsoft once.... almost a customer spotted
it and paid the registration for them.

-
Half Man... Half Pentax ... Half Cucumber

Pentax K-1 + K-5 and some other stuff

Algi

bforbes

Link Posted 29/01/2013 - 09:44
Impressed with a quick reply from Intro2020, although not the outcome I hoped for:

"Due to the age of this lens we are no longer able to repair or service the lens."
Barrie
Too Old To Die Young

http://www.pentaxphotogallery.com/artists/barrieforbes
https://www.flickr.com/photos/189482630@N03/

Blythman

Link Posted 29/01/2013 - 09:58
Don't know if you want to go there Barrie but this shows where the screws are to adjust focus

http://www.wiratama.net/2/category/tamron/1.html
Alan


PPG
Flickr

bforbes

Link Posted 29/01/2013 - 10:10
A screw to far I think Alan.

I'd heard good reports of APM Camera Repairs in Newcastle but was not sure if he only dealt with camera bodies. Spoke to him this morning, he does work on lenses, so I'm taking it in tomorrow.
Barrie
Too Old To Die Young

http://www.pentaxphotogallery.com/artists/barrieforbes
https://www.flickr.com/photos/189482630@N03/

Mal

Link Posted 29/01/2013 - 13:44
bforbes wrote:
A screw to far I think Alan.

I'd heard good reports of APM Camera Repairs in Newcastle but was not sure if he only dealt with camera bodies. Spoke to him this morning, he does work on lenses, so I'm taking it in tomorrow.

Yes APM are pretty good and reasonable costs too......if hes got any new pentax fit lenses in make sure you don't look at them! , i can't make there to have look around until the end of the week

geordie01

Link Posted 29/01/2013 - 14:04
I would have a go at repairing it myself looks simple enough

Algernon

Link Posted 29/01/2013 - 14:42
If it's the same as the 28-105mm non Adaptall you just
remove the front barrel. Remove a 6" length of black
electrical type tape which locks two lens element holders
together.... rotate the front one to infinity focus and
then tape up again.... very easlily done.
Half Man... Half Pentax ... Half Cucumber

Pentax K-1 + K-5 and some other stuff

Algi

bforbes

Link Posted 26/03/2013 - 19:52
The best that can be said about APM repairing the lens is that all the parts were still there. On the other hand it came back from Alan Marlow of A M Technical Services link this morning working like clockwork. Highly Recommended
Barrie
Too Old To Die Young

http://www.pentaxphotogallery.com/artists/barrieforbes
https://www.flickr.com/photos/189482630@N03/
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