Author Topic: Tamron SP 70-300  (Read 5822 times)

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Offline chorleyjeff

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Tamron SP 70-300
« on: June 08, 2014, 06:43:12 PM »
I bought the above lens to use on my A580 then bought an A290 to use with this lens for landscape photos to avoid changing lenses on the A580 fequently when out in the field. I did this because when walking up the Skurr on Eigg I got fed up with constantly changing lenses as views opened up demanding wide angle and long focus lenses.
Anyhow today I was in my son's garden and a Red Kite landed on a tree in next doors  garden and I got the A290 with said lens and it wouldn't focus.  Camera and lens were set for autofocus and when I tried to take a shot there was noise from the lens but no change in focus. It sounded as if it was hunting loking for focus. I then tried to focus manualy but the only way to move focus was by pulling the focus ring back towards the camera body. Operated normaly the focus didn't move. Some years ago my Sigma 105 stripped a gear when used with my Minolta AF camera. I fear that the Tamron has striped a gear. Do you think I  am right or is there some other possible explanation? Any advice will be gratefuly received. Is this another example of built in obsolescence?
Jeff

Offline Gordon McGeachie

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Re: Tamron SP 70-300
« Reply #1 on: June 08, 2014, 09:30:39 PM »
not sure what it could be, but I would be very surprised if it is stripped gears, as I have never heard of that on a Tamron lens, just some early Sigma ones.

you could try cleaning the contacts on the body and lens and see if that cures it

A700, VG-C70AM, Sony 50mm f1.4,SAL1870, Sony 70-300mm f4.5-5.6 G SSM, A350,A550,3600HSD, Minolta 135, 500 Reflex, Sigma 10-20,  Tamron 17-50mm f2.8 XR Di-II LD ASP IF, Sigma 400, Tamron 90, ,Nissin Di866 MKII,Interfit 150w 2 head kit, Giottos MTL9351B/MH5011
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Offline AScot

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Re: Tamron SP 70-300
« Reply #2 on: June 08, 2014, 09:34:51 PM »
Try it on another lens to make sure the camera is OK and try Gordon's suggestions. If camera is OK, install your Tamron, turn camera on and set to Auto focus on a close subject. turn camera off. Does it focus to infinity? if not gear probably stripped on the lens.
Sony A7, A850, A77, A700 || Sony>> 70-300G, 28-75 f2.8 SAM, 16-80CZ, 50 f1.4, FE 28-70 OSS, FE 24-70CZ f4 OSS, LA-EA4 || Minolta>> 300 f4 G HS, 200 f2.8 G HS, 100 f2.8 (D) Macro, 50 f1.7, 28 f2.8, 28-135 f4-4.5, 70-210 f4, 500 f8 Reflex, TC x 1.4 HS, TC x 2 HS. || Sigma 21-35 f3.5-4.2. || Tamron SP 24-135.

Offline chorleyjeff

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Re: Tamron SP 70-300
« Reply #3 on: June 09, 2014, 04:12:17 PM »
Try it on another lens to make sure the camera is OK and try Gordon's suggestions. If camera is OK, install your Tamron, turn camera on and set to Auto focus on a close subject. turn camera off. Does it focus to infinity? if not gear probably stripped on the lens.

Thanks for advice.
I should have mentioned that the symptoms are exactly the same when attached to my A580 and the A290 works perfectly with my 16-80 lens.
Cleaning the contacts has changed nothing.
Regarding your last two sentences. The only way to focus on a close subject is to use manual focus while pulling the focus adjustment ring towards the camera body. I did that then tried to focus automatically on a distant object but again the only thing that happened was the sound of a motor  seeming to be hunting.
Jeff

Offline AScot

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Re: Tamron SP 70-300
« Reply #4 on: June 09, 2014, 11:11:17 PM »
What I meant was this. The Sony/Minolta cameras, when Turned on or shut off, will always try to focus the lens to infinity as part of the start up/shut down process. Therefore If the lens will not go to infinity then the gear is damaged in some way. It is easy to see this happen with Minolta and Sony lenses if they have a Focus distance window. The Tamron may not have a window.
Sony A7, A850, A77, A700 || Sony>> 70-300G, 28-75 f2.8 SAM, 16-80CZ, 50 f1.4, FE 28-70 OSS, FE 24-70CZ f4 OSS, LA-EA4 || Minolta>> 300 f4 G HS, 200 f2.8 G HS, 100 f2.8 (D) Macro, 50 f1.7, 28 f2.8, 28-135 f4-4.5, 70-210 f4, 500 f8 Reflex, TC x 1.4 HS, TC x 2 HS. || Sigma 21-35 f3.5-4.2. || Tamron SP 24-135.

Offline chappo1

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Re: Tamron SP 70-300
« Reply #5 on: June 09, 2014, 11:35:18 PM »
Sounds to me like you have a new paperweight  .....john
“Time is a great teacher, but unfortunately it kills all its pupils."

Hector Berlioz

Offline chorleyjeff

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Re: Tamron SP 70-300
« Reply #6 on: June 10, 2014, 09:02:53 AM »
What I meant was this. The Sony/Minolta cameras, when Turned on or shut off, will always try to focus the lens to infinity as part of the start up/shut down process. Therefore If the lens will not go to infinity then the gear is damaged in some way. It is easy to see this happen with Minolta and Sony lenses if they have a Focus distance window. The Tamron may not have a window.

Ah.
I now understand.
Just did as suggested. It didn't focus on infinity ( there is a focus distance shown in a window).BUT after the sound of a motor shuffling to and fro four times it  focussed on a tree at "infinity". Off to the repair shop methinks.
Jeff

Offline chorleyjeff

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Re: Tamron SP 70-300
« Reply #7 on: June 10, 2014, 09:16:46 AM »
Sounds to me like you have a new paperweight  .....john

Useless as a paperweight because it is tubular and rolls -:((
I am now  enjoying a rosy feeling of nostalgia for the days when I had a Mamiya C330 that seemed to be built like a tank and never caused me any problems.
Perhaps I should stick with my little Canon compact, which seems absolutely reliable, for casual snapshots and buy a film camera and darkroom equipment for the price of a replacement Tamron SP 70-300. At least buying replacement lenses for a 35mm camera would be affordable.
Anyhow I am away from home until July but will then take it to Newton and Ellis in Liverpool for repair. They did a god job on my Sigma 105mm.
Can't afford a replacement optically good long focus zoom lens  because I have booked a place on an expensive residential photo course - a problem compounded!
Jeff

Offline CHOLLY

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Re: Tamron SP 70-300
« Reply #8 on: June 10, 2014, 01:53:42 PM »
Good luck.... :(
There are people who actually think LENS stabilization is better than sensor shifting!

Offline AScot

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Re: Tamron SP 70-300
« Reply #9 on: June 10, 2014, 05:42:19 PM »
Quote
I am now  enjoying a rosy feeling of nostalgia for the days when I had a Mamiya C330 that seemed to be built like a tank and never caused me any problems.

Jeff

Make no mistake, the Minolta/Sony lenses are built like a tank, most of them, some kit lenses can be suspect but they are also cheap. I have a number of Minolta lenses, some of them dating back to 1985. I have had problems with three lenses only, two Sigmas and a Tamron. That is why I religiously buy Minolta/Sony lenses only, even though they are usually more expensive. I'm not saying 3rd party lenses are no good, just that I am not prepared to take the chance and buy another. In all fairness Canon and Nikon lenses are usually very sturdy also.

Enjoy your rosy feeling of nostalgia. :D The Mamiya cameras were very good but always a cheaper alternative to the superb Rolleiflex. These Twin reflex type cameras are much simpler in design to DSLRs and as such are inherently less prone to problems. You may also note however that they are, for all intents and purposes, obsolete. Also would you really enjoy going back to a square format 120 film camera? Canon compacts are no better than Sony or Nikon compacts. My 1953 Voigtlander 35mm with a f2.8 lens is still working like new (I bought it used in 1954). However I would never even dream of going back to actually using it. It commands a respected position in my cupboard, together with my Minolta 7000. :D
Sony A7, A850, A77, A700 || Sony>> 70-300G, 28-75 f2.8 SAM, 16-80CZ, 50 f1.4, FE 28-70 OSS, FE 24-70CZ f4 OSS, LA-EA4 || Minolta>> 300 f4 G HS, 200 f2.8 G HS, 100 f2.8 (D) Macro, 50 f1.7, 28 f2.8, 28-135 f4-4.5, 70-210 f4, 500 f8 Reflex, TC x 1.4 HS, TC x 2 HS. || Sigma 21-35 f3.5-4.2. || Tamron SP 24-135.

Offline CHOLLY

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Re: Tamron SP 70-300
« Reply #10 on: June 11, 2014, 07:27:22 PM »
Quote
I am now  enjoying a rosy feeling of nostalgia for the days when I had a Mamiya C330 that seemed to be built like a tank and never caused me any problems.

Jeff

Make no mistake, the Minolta/Sony lenses are built like a tank, most of them, some kit lenses can be suspect but they are also cheap. I have a number of Minolta lenses, some of them dating back to 1985. I have had problems with three lenses only, two Sigmas and a Tamron. That is why I religiously buy Minolta/Sony lenses only, even though they are usually more expensive. I'm not saying 3rd party lenses are no good, just that I am not prepared to take the chance and buy another. In all fairness Canon and Nikon lenses are usually very sturdy also.

........................

I agree COMPLETELY.

I only buy used lenses that were manufactured either by Minolta or Sony because I too have Minolta lenses from 1985 that function as well today as they did when they rolled out of the factory.

And while Sony lenses tend to have more plastic in their construction than Minolta lenses do, I have NEVER had a problem with them related to their construction or quality control.
There are people who actually think LENS stabilization is better than sensor shifting!

Offline chorleyjeff

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Re: Tamron SP 70-300
« Reply #11 on: June 11, 2014, 09:26:59 PM »
[
[/quote]

I agree COMPLETELY.

I only buy used lenses that were manufactured either by Minolta or Sony because I too have Minolta lenses from 1985 that function as well today as they did when they rolled out of the factory.

And while Sony lenses tend to have more plastic in their construction than Minolta lenses do, I have NEVER had a problem with them related to their construction or quality control.
[/quote]

But I have had two Minolta lens failures
1 50mm f1.7 af  diaphragm seized.
2  35-80  af would not stop down.
Jeff

Offline AScot

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Re: Tamron SP 70-300
« Reply #12 on: June 11, 2014, 11:45:31 PM »
But I have had two Minolta lens failures
1 50mm f1.7 af  diaphragm seized.
2  35-80  af would not stop down.
Jeff

Well the 35-80 was a very poor kit lens in its day, 1988, and the 50mm f1.7, 1985, although quite a good lens can be replaced for under $100. So now you have three lens failures, Have you considered owner abuse? Just kidding Jeff. :D
Sony A7, A850, A77, A700 || Sony>> 70-300G, 28-75 f2.8 SAM, 16-80CZ, 50 f1.4, FE 28-70 OSS, FE 24-70CZ f4 OSS, LA-EA4 || Minolta>> 300 f4 G HS, 200 f2.8 G HS, 100 f2.8 (D) Macro, 50 f1.7, 28 f2.8, 28-135 f4-4.5, 70-210 f4, 500 f8 Reflex, TC x 1.4 HS, TC x 2 HS. || Sigma 21-35 f3.5-4.2. || Tamron SP 24-135.

Offline chorleyjeff

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Re: Tamron SP 70-300
« Reply #13 on: June 12, 2014, 07:38:06 PM »
But I have had two Minolta lens failures
1 50mm f1.7 af  diaphragm seized.
2  35-80  af would not stop down.
Jeff

Well the 35-80 was a very poor kit lens in its day, 1988, and the 50mm f1.7, 1985,
although quite a good lens can be replaced for under $100. So now you have three lens failures, Have you considered owner abuse? Just kidding Jeff. :D

But they were still Minolta lenses :-))
$100 is quite a bit of money for me, even in £s :-((
Maybe I have had a bit of luck. I am dog sitting in Marlow for a few weeks  ( it's a chance to enjoy the delights of  the sunny South )and I have now found out that the Tamron importer/servicing agent is in nearby Maidenhead so I'll be able to visit them to see if it can be  fixed reasonably cheaply.
Jeff

Offline Gordon McGeachie

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Re: Tamron SP 70-300
« Reply #14 on: June 12, 2014, 08:43:46 PM »
@Jeff

I have a Sigma 400mm f5.6 non apo/macro that I bought in 1990, and it is still going strong............
A700, VG-C70AM, Sony 50mm f1.4,SAL1870, Sony 70-300mm f4.5-5.6 G SSM, A350,A550,3600HSD, Minolta 135, 500 Reflex, Sigma 10-20,  Tamron 17-50mm f2.8 XR Di-II LD ASP IF, Sigma 400, Tamron 90, ,Nissin Di866 MKII,Interfit 150w 2 head kit, Giottos MTL9351B/MH5011
My flickr site is here http://www.flickr.com/photos/35699306@N04/