The Tammy Club!

Andep · 08-18-2016, 10:48 PM

I think my Tamron 17-50 is broken?

K3II, iso100, 1/200 s, 22mm, f/2.8

Right side of the image is much sharper than the left side or even center. I bet something is wrong, looks like some kind of T/S lens... I think that I once banged it against something and tammy did not like that.

Well.. Maybe this is the final point to look forward for FF and compatible lenses?

**ivanvernon** · 08-19-2016, 02:43 AM

Originally posted by Andep

I think my Tamron 17-50 is broken?

K3II, iso100, 1/200 s, 22mm, f/2.8

Right side of the image is much sharper than the left side or even center. I bet something is wrong, looks like some kind of T/S lens... I think that I once banged it against something and tammy did not like that.

Well.. Maybe this is the final point to look forward for FF and compatible lenses?

Just looks back focussed to me. The building in the back is in focus, and the trees to the left in the foreground are out of focus, just a normal condition.

Jonathan Mac · 08-19-2016, 04:43 AM

Originally posted by Andep

I think my Tamron 17-50 is broken?

K3II, iso100, 1/200 s, 22mm, f/2.8

Right side of the image is much sharper than the left side or even center. I bet something is wrong, looks like some kind of T/S lens... I think that I once banged it against something and tammy did not like that.

Well.. Maybe this is the final point to look forward for FF and compatible lenses?

Originally posted by ivanvernon

Just looks back focussed to me. The building in the back is in focus, and the trees to the left in the foreground are out of focus, just a normal condition.

No, the foreground vegetation is much sharper on the right than it is in the centre, that rules out back/front focusing as the cause, however the different distances to the subjects on the left and right make this photo far from ideal for assessing the lens.

**pepperberry farm** · 08-19-2016, 05:00 AM

perhaps more samples of photos would help diagnose if there really is an issue?

Andep · 08-19-2016, 05:40 AM

Originally posted by pepperberry farm

perhaps more samples of photos would help diagnose if there really is an issue?

I haven't shot mutch since I knocked it but here is one (click for fullsized version):

K3-II, iso200, 1/60 s, 42mm, f/7.1

Not the best sample for now but in this one the extreme right edge seems bad. I'll take more samples some day...

Andep · 08-19-2016, 09:53 AM

Ok, here is a quick one.

Tamron 17-50 @ 36 mm, f/3.5

Focused right in the middle of the image (little rock). For me it seems like top left & bottom right corners are sharper than bottom left & top right corners. So something (a lens?) is messed up.

ChristianRock · 08-19-2016, 01:39 PM

Originally posted by csa

The moon tonight with K3, Tamron 500 F8 mirror. Handheld.

Bravo!

Originally posted by Andep

Ok, here is a quick one.

Tamron 17-50 @ 36 mm, f/3.5

Focused right in the middle of the image (little rock). For me it seems like top left & bottom right corners are sharper than bottom left & top right corners. So something (a lens?) is messed up.

Yeah that does look like something funky is going on there... I would get it serviced if I could. I have heard people here say Tamron service is pretty good.

Jonathan Mac · 08-20-2016, 03:03 AM

Something inside has definitely shifted out of alignment.

**pepperberry farm** · 08-20-2016, 05:49 AM

**pepperberry farm** · 08-20-2016, 10:20 AM

(is it odd that I keep looking for an extra copy of this lens?)

**pepperberry farm** · 08-20-2016, 08:18 PM

**MrMotivations** · 08-21-2016, 09:54 AM

I like how the K-7 handles to this day. By comparison, the K-5 Silver is tank-like. Just my opinion, as it is more capable than I.

cardinal43 · 08-21-2016, 01:10 PM

Originally posted by csa

The moon tonight with K3, Tamron 500 F8 mirror. Handheld.

Pretty darn good for handheld. Unfortunately as I age, I'm not as steady handed as I would like to be so I use a monopod more than I want to.

**csa** · 08-21-2016, 01:26 PM

Tom, so far I'm very fortunate to have steady hands while photographing, it helps get a lot of shots I'd miss with a tripod/monopod. But we must use everything we can, so that we can continue to enjoy our great hobby, so keep that monopod ready to use!

**MrMotivations** · 08-21-2016, 02:38 PM - **2 Likes**

...some happy folks....

08-18-2016, 10:48 PM	#2536
Andep Junior Member Join Date: Jun 2013 Posts: 49	Broken? I think my Tamron 17-50 is broken? K3II, iso100, 1/200 s, 22mm, f/2.8 Right side of the image is much sharper than the left side or even center. I bet something is wrong, looks like some kind of T/S lens... I think that I once banged it against something and tammy did not like that. Well.. Maybe this is the final point to look forward for FF and compatible lenses?

08-20-2016, 05:49 AM	#2544
pepperberry farm amateur dirt farmer Join Date: Dec 2014 Location: probably out in a field somewhere... Photos: Gallery \| Albums Posts: 41,661	K-3 with Tamron Adaptall-2 02B 28mm f2.5

08-20-2016, 10:20 AM	#2545
pepperberry farm amateur dirt farmer Join Date: Dec 2014 Location: probably out in a field somewhere... Photos: Gallery \| Albums Posts: 41,661	K-3 with Tamron Adaptall 2 72B - 90mm f2.8 (is it odd that I keep looking for an extra copy of this lens?)

08-20-2016, 08:18 PM	#2546
pepperberry farm amateur dirt farmer Join Date: Dec 2014 Location: probably out in a field somewhere... Photos: Gallery \| Albums Posts: 41,661	K-3 with Tamron Adaptall-2 SP 151B 17mm f3.5

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08-19-2016, 02:43 AM	#2537
ivanvernon Loyal Site Supporter Join Date: Oct 2012 Location: Medina, OH Photos: Albums Posts: 7,224	Originally posted by Andep I think my Tamron 17-50 is broken? K3II, iso100, 1/200 s, 22mm, f/2.8 Right side of the image is much sharper than the left side or even center. I bet something is wrong, looks like some kind of T/S lens... I think that I once banged it against something and tammy did not like that. Well.. Maybe this is the final point to look forward for FF and compatible lenses? Just looks back focussed to me. The building in the back is in focus, and the trees to the left in the foreground are out of focus, just a normal condition.

08-19-2016, 04:43 AM	#2538
Jonathan Mac Pentaxian Join Date: Apr 2009 Location: Madrid, Spain Posts: 10,894	Originally posted by Andep I think my Tamron 17-50 is broken? K3II, iso100, 1/200 s, 22mm, f/2.8 Right side of the image is much sharper than the left side or even center. I bet something is wrong, looks like some kind of T/S lens... I think that I once banged it against something and tammy did not like that. Well.. Maybe this is the final point to look forward for FF and compatible lenses? Originally posted by ivanvernon Just looks back focussed to me. The building in the back is in focus, and the trees to the left in the foreground are out of focus, just a normal condition. No, the foreground vegetation is much sharper on the right than it is in the centre, that rules out back/front focusing as the cause, however the different distances to the subjects on the left and right make this photo far from ideal for assessing the lens.

08-19-2016, 05:00 AM	#2539
pepperberry farm amateur dirt farmer Join Date: Dec 2014 Location: probably out in a field somewhere... Photos: Gallery \| Albums Posts: 41,661	perhaps more samples of photos would help diagnose if there really is an issue?

08-19-2016, 05:40 AM	#2540
Andep Junior Member Join Date: Jun 2013 Posts: 49	Originally posted by pepperberry farm perhaps more samples of photos would help diagnose if there really is an issue? I haven't shot mutch since I knocked it but here is one (click for fullsized version): K3-II, iso200, 1/60 s, 42mm, f/7.1 Not the best sample for now but in this one the extreme right edge seems bad. I'll take more samples some day...

08-19-2016, 09:53 AM	#2541
Andep Junior Member Join Date: Jun 2013 Posts: 49	Ok, here is a quick one. Tamron 17-50 @ 36 mm, f/3.5 Focused right in the middle of the image (little rock). For me it seems like top left & bottom right corners are sharper than bottom left & top right corners. So something (a lens?) is messed up.

08-19-2016, 01:39 PM	#2542
ChristianRock Pentaxian Join Date: Jul 2013 Location: People's Republic of America Photos: Gallery \| Albums Posts: 9,910	Originally posted by csa The moon tonight with K3, Tamron 500 F8 mirror. Handheld. Bravo! Originally posted by Andep Ok, here is a quick one. Tamron 17-50 @ 36 mm, f/3.5 Focused right in the middle of the image (little rock). For me it seems like top left & bottom right corners are sharper than bottom left & top right corners. So something (a lens?) is messed up. Yeah that does look like something funky is going on there... I would get it serviced if I could. I have heard people here say Tamron service is pretty good.

08-20-2016, 03:03 AM	#2543
Jonathan Mac Pentaxian Join Date: Apr 2009 Location: Madrid, Spain Posts: 10,894	Something inside has definitely shifted out of alignment.

08-21-2016, 01:10 PM	#2548
cardinal43 Veteran Member Join Date: Oct 2007 Location: Virginia Photos: Gallery Posts: 2,412	Originally posted by csa The moon tonight with K3, Tamron 500 F8 mirror. Handheld. Pretty darn good for handheld. Unfortunately as I age, I'm not as steady handed as I would like to be so I use a monopod more than I want to.

08-21-2016, 01:26 PM	#2549
csa Loyal Site Supporter Join Date: Aug 2014 Location: Montana mountains Posts: 10,133	Tom, so far I'm very fortunate to have steady hands while photographing, it helps get a lot of shots I'd miss with a tripod/monopod. But we must use everything we can, so that we can continue to enjoy our great hobby, so keep that monopod ready to use!