October 25, 2014, 10:40:09 AM

Author Topic: Tamron 150 600 woes  (Read 6309 times)

candc

  • Canon 7D MK II
  • *****
  • Posts: 570
    • View Profile
Re: Tamron 150 600 woes
« Reply #15 on: August 03, 2014, 07:50:49 AM »
roger at lens rentals wrote a really informative article on the whole afma issue. simply put all lenses and cameras have some variation. lets just say +/- 5 arbitrary units for example. you can have anything from -10 to +10 using those 2 values so don't take the need for afma as meaning the lens is bad.

i really like the tamron and thinks its great on ff or a crop body. i mostly use it on the 70d and am very happy with what it produces. this squirrel is typical of what you can expect

canon rumors FORUM

Re: Tamron 150 600 woes
« Reply #15 on: August 03, 2014, 07:50:49 AM »

neuroanatomist

  • CR GEEK
  • ********
  • Posts: 14753
    • View Profile
Re: Tamron 150 600 woes
« Reply #16 on: August 03, 2014, 10:52:26 AM »
I use dot tune method.

Personally, I've tested the 'dot tune' method, and found it to be inconsistent.  One good thing about it: you get your money's worth.   ;)
EOS 1D X, EOS M, and lots of lenses
______________________________
Flickr | TDP Profile/Gear List

tomscott

  • 5D Mark III
  • ******
  • Posts: 652
  • Graphic Designer & Photographer
    • View Profile
    • Tom Scott | Photography
Re: Tamron 150 600 woes
« Reply #17 on: August 04, 2014, 07:17:49 AM »
The likelihood of getting a perfect lens to match your body is slim at best.

Any gear in all industry needs to be calibrated correctly, just a fact of using high end gear thats designed to work for a large amount of bodies etc

Obviously its disappointing but not the end of the world, just sort it out.
5D MKIII 40D 17-55mm F2.8 IS 16-35mm F2.8 II L 24-70mm F2.8 L 24-105mm F4 IS L 100mm F2.8 IS L 70-200mm F2.8 IS II L 70-300mm F4-5.6 IS L 50mm F1.8 2x Ex 580EX

Lightmaster

  • Guest
Re: Tamron 150 600 woes
« Reply #18 on: August 04, 2014, 07:38:02 AM »
I have 9 lenses all of which are calibrated perfectly (no afma require at all) across both bodies.

What method of AFMA do you use?  Out of 3 pro bodies and 11 L lenses I have never had a lens and body combo that did not require AFMA adjustment.  I have also only seen a couple of lenses from other photogs over the years that did not require any afma adjustment.  You must be the luckiest camera and lens buyer in the world to get perfectly calibrated lenses and bodies...

I use dot tune method. Plus I return any lens with any afma inconsistencies and get another copy


LOL....then you better never buy a new camera body or you might have to buy new lenses again.

honestly that´s just nonsense what you do.

i have lenses that worked perfect on my 5D MK2.
when i bought the 5D Mk3 they needed some small correction.
on my second 5D MK 3, backup body i bought a few month later, they need different corrections.

AFMA and good.. that´s what it is for.

when you have a body with AFMA and one without.
send the lens AND the body that has no AFMA in for calibration.
then use AFMA on the other body.
« Last Edit: August 04, 2014, 07:40:18 AM by Lightmaster »

neuroanatomist

  • CR GEEK
  • ********
  • Posts: 14753
    • View Profile
Re: Tamron 150 600 woes
« Reply #19 on: August 04, 2014, 08:02:22 AM »
Plus I return any lens with any afma inconsistencies and get another copy
LOL....then you better never buy a new camera body or you might have to buy new lenses again.

Not necessarily – it depends on what 'inconsistencies' means.  Needing AFMA is fine, different values on different bodies is normal.  But I test zoom lenses at both ends and 1-3 intermediate focal lengths, and if the intermediate FLs don't fall on the regression line between W and T, I'd call that an 'AFMA inconsistency' and return the lens or send it to Canon for service. 
EOS 1D X, EOS M, and lots of lenses
______________________________
Flickr | TDP Profile/Gear List

Leigh

  • SX60 HS
  • **
  • Posts: 9
    • View Profile
Re: Tamron 150 600 woes
« Reply #20 on: August 04, 2014, 08:56:52 AM »
I tried one, and the AF was dismal on both of my 7D bodies, weather in IA-servo, or One-Shot.

"Hit & miss'--Mostly miss!    Maybe I got a "bad" copy--Sent it back.

Leigh

Schafjan

  • SX60 HS
  • **
  • Posts: 2
    • View Profile
Re: Tamron 150 600 woes
« Reply #21 on: August 04, 2014, 09:36:58 AM »
Have the Tamron for my 70D. No problems discovered. Subjects in focus are tack sharp.
70D, 70-300 L, Tammy 150-600, 17-55 2.8, and more

canon rumors FORUM

Re: Tamron 150 600 woes
« Reply #21 on: August 04, 2014, 09:36:58 AM »

AlanF

  • 1D X
  • *******
  • Posts: 1093
    • View Profile
Re: Tamron 150 600 woes
« Reply #22 on: August 04, 2014, 10:00:42 AM »
I tried one, and the AF was dismal on both of my 7D bodies, weather in IA-servo, or One-Shot.

"Hit & miss'--Mostly miss!    Maybe I got a "bad" copy--Sent it back.

Leigh

Focussing of my 300mm f/2.8 II + 2xTCIII on my 7D was dismal (slow and inconsistent), which was the reason I sold it for a 70D, which focusses brilliantly with the Canon combo and and with the Tamron 150-600mm. Blame the camera and not the lens. Many of us have found this.
5D III, 70D, Powershot SX50, 300/2.8 II, 1.4xTC III, 2xTC III, 70-200/4 IS, 24-105, 15-85, Sigma 10-20, Tamron 150-600.

justaCanonuser

  • PowerShot G1 X II
  • ***
  • Posts: 66
    • View Profile
Re: Tamron 150 600 woes
« Reply #23 on: August 04, 2014, 12:03:55 PM »
Bought a tamron 150 600 for my 5d3 and 60d. It has AFMA problems (-6 tele, +5 wide)

Sent it back for calibration. Came back worse (-15 tele, -5 wide).

Gave up and I'm sending it back for refund.

Anyone else had problems with this lens?

Took the chance to test some copies on a Tamron booth in a local shop in Frankfurt (Germany). I brought my 7D and 5D3 with me, my wife her Nikon D300S. With the Canon mount test copy  + no AFMA, my 7D focused acceptably well, my 5D3 not (both in AI servo mode). Checking the test images later (mostly walking people), I could see that the full frame combo had a severe backfocus on the long end. The Nikon test combo did overall well. My wife bougth a copy which later at home displayed a massive backfocus, too, so we had to calibrate it with the Nikon.

I am a bit worried, not about a backfocus that can be easily corrected, but about general focus inconsistensies which can cause the loss of a wildlife shot that only comes once. I have a Tamron 24-70/2.8, too, which needed a huge AFMA with my 5D3 but still makes a lot of trouble (compared with Canon glass). So I am not yet convinced about getting a 150-600, even I'd love to have this great Tammy as a compact sidekick for my Canon 500 mm prime (+ shorter lenses).
5D3, 7D, film: EOS 3, Nikon FM-2, lots of lenses from 18 to 500mm

CR Backup Admin

  • Administrator
  • 1D Mark IV
  • *****
  • Posts: 798
    • View Profile
Re: Tamron 150 600 woes
« Reply #24 on: August 04, 2014, 12:53:37 PM »
If the new 7D MK II and subsequent bodies have dual pixel technology with improved focusing technology over the 70D, the biggest benefactor may well be third party lenses.  The 70D when used with live AF has been reported to focus very accurately even with  difficult to focus 3rd party lenses.

Once Canon gets the tracking and other features working well in generation 2 of the dual pixel system, I'd be much more likely to go for a 3rd party lens.


mikio

  • Power Shot G7X
  • **
  • Posts: 22
    • View Profile
Re: Tamron 150 600 woes
« Reply #25 on: August 12, 2014, 03:18:37 AM »
A third party lens is always a risk. Mine, for example has a perfect AFMA - 0 wide and 0 tele.
At first it had a famous bug on 5D mark III with AF focusing from near objects to far away.
I sent it to service and they had updated the lens firmware.
But now, I suddenly discovered another problem with the lens.
It works perfectly well with all AF points except a central one.
I mean, the same issue with unstable refocusing from a near by object (~3m) to a far away object (~30m) - now remains only if a single center AF point is selected.
How it is possible, I still can't understand.
A specially if all my other lenses work perfectly fine with the center point AF on this camera.

dilbert

  • Canon EF 300mm f/2.8L IS II
  • *******
  • Posts: 3096
    • View Profile
Re: Tamron 150 600 woes
« Reply #26 on: August 12, 2014, 03:47:43 AM »
...
Took the chance to test some copies on a Tamron booth in a local shop in Frankfurt (Germany). I brought my 7D and 5D3 with me, my wife her Nikon D300S. With the Canon mount test copy  + no AFMA, my 7D focused acceptably well, my 5D3 not (both in AI servo mode). Checking the test images later (mostly walking people), I could see that the full frame combo had a severe backfocus on the long end. The Nikon test combo did overall well. My wife bougth a copy which later at home displayed a massive backfocus, too, so we had to calibrate it with the Nikon.
...

This is because AFMA is there to deal with inconsistencies between both lenses AND bodies. Ultimately your discovery here means that no lens should have the same AFMA value on both of your cameras.

the blackfox

  • Power Shot G7X
  • **
  • Posts: 29
    • View Profile
Re: Tamron 150 600 woes
« Reply #27 on: August 12, 2014, 10:04:05 AM »
i was told (possibly by a tamron rep ) but don't hold me to that .that the problem is the fact that canon will not let tamron have the lens algorithm table to get it right most of the time ,whereas nikon and sony let them have access to theres .i don't know if this makes sense or is even the truth but most problems with this lens seem to be coming from canon users ,the pics i am seeing from the nikon ones are spot on ,with hardly any complaints from nikon users at all .
   i borrowed one for a day and in all honesty i was not impressed with a/f at all and would rather use a 400mm f5.6 plus 1.4tc on my 1D3 to get the  reach .

canon rumors FORUM

Re: Tamron 150 600 woes
« Reply #27 on: August 12, 2014, 10:04:05 AM »

Stephen Melvin

  • EOS M2
  • ****
  • Posts: 233
    • View Profile
Re: Tamron 150 600 woes
« Reply #28 on: August 12, 2014, 10:56:53 AM »
i was told (possibly by a tamron rep ) but don't hold me to that .that the problem is the fact that canon will not let tamron have the lens algorithm table to get it right most of the time ,whereas nikon and sony let them have access to theres .i don't know if this makes sense or is even the truth but most problems with this lens seem to be coming from canon users ,the pics i am seeing from the nikon ones are spot on ,with hardly any complaints from nikon users at all .
   i borrowed one for a day and in all honesty i was not impressed with a/f at all and would rather use a 400mm f5.6 plus 1.4tc on my 1D3 to get the  reach .


The problem with that oft-repeated theory is that Tamron makes lenses for Canon. They do for Canon as well. They couldn't very well do that if Canon didn't give them all the information they needed, could they?

dcm

  • Canon 70D
  • ****
  • Posts: 252
  • 6D, M
    • View Profile
Re: Tamron 150 600 woes
« Reply #29 on: August 12, 2014, 11:45:45 AM »
My copy arrived with significant back focus at 600 which was clearly visible in shots taken at MFD on my 6D with center focus point only. 

AFMA with FoCal resulted in -2 at 150, -10 at 600 which seems to have corrected the issue.  Sharpness was best at f/8 or f/9, there was a big drop off at f/6.3.  Other tests showed the focus consistency was above 99% at both ends, which is as good as my Canon L glass. 

It still occasionally hunts for focus in low light, low contrast situations which I expected - low being relative in this case.
6Ds, M, zooms and primes

canon rumors FORUM

Re: Tamron 150 600 woes
« Reply #29 on: August 12, 2014, 11:45:45 AM »