p.8 #1 · Tamron 150-600 AI Servo sequential shots only
Update: Tamron Japan Customer Service has responded to my email, asking for further details, which I did. I also suggested they test the lens on a 7D & 1D Mk IV, in AI Servo, in the 450-600mm range, and with the shutter button held half-depressed as they focus on a distant subject then swing to focus on a nearer subject.
p.8 #2 · Tamron 150-600 AI Servo sequential shots only
Just purchased a Tamron 150-600 and using a 7D and also having problems in AI Servo mode. It just doesn't track bird in flight at 500 or 600mm (haven't tried shorter FL and f/5 yet). I took an image of a sign with single shot and that is fine. I have not tried micro adjustment for this lens yet although on a fixed object it appears sharp. I just updated to 2.0.5 firmware (from 2.0.3) and haven't tried today yet (too cold here). I spoke with a Tamron customer service rep. and she took down my info. and E-Mail addrees.
p.8 #5 · Tamron 150-600 AI Servo sequential shots only
The Big Whites are undeniably, better all around lens to be sure. What the Tamron 150-600 mm 5-6.3 has done is put a workable 600mm with excellent IQ in the hands of the photographer that knows what he or she is doing but could never spend the $12,))).00 bucke for it's white equivalent. We'll never see very many BIF out of the tamron, and really shouldn't expect to. Some will figure it out to some extent or get that one in a few that AI Servo Focuses correctly sometimes. That's alright for a lot of shooters who don't live by BIF anyway (like me). We really can't expect a $1069,00 lens to compare completely with a Big White and the cost difference.
I really am satisfied with my Tamron and would recommend it to anyone that knows it's limits and are willing to give some ability for the range.
It's the same difference between a 7D owner and a 1D X owner. You just don't expect the same level of performance from the 7D as the ID X but there both good at what their designed for.
Just be happy, happy, happy that the third party companies are getting closer and at least keeping the Big Two on their toes.
I do agree with Tony in that Tamron could at least give him and others some king of answer in return. I guess they knew for the price, some would be dissatisfied to start with and there was nothing they could do about it.
p.8 #6 · Tamron 150-600 AI Servo sequential shots only
Well I would have expected a Tammy 150-600 to AF a fair bit better than a 100-400L + 1.4x which does at least track ok on a 1D IV, where the Tammy fails. I wasn't expecting BWL performance, but a native 600 zoom with a faster aperture should do better. What's bizarre, the Tamron 70-300 VC doesn't have these issues.
p.8 #7 · Tamron 150-600 AI Servo sequential shots only
dsr1 wrote:
The Big Whites are undeniably, better all around lens to be sure. What the Tamron 150-600 mm 5-6.3 has done is put a workable 600mm with excellent IQ in the hands of the photographer that knows what he or she is doing but could never spend the $12,))).00 bucke for it's white equivalent. We'll never see very many BIF out of the tamron, and really shouldn't expect to. Some will figure it out to some extent or get that one in a few that AI Servo Focuses correctly sometimes. That's alright for a lot of shooters who don't live by BIF anyway (like me). We really can't expect a $1069,00 lens to compare completely with a Big White and the cost difference.
I really am satisfied with my Tamron and would recommend it to anyone that knows it's limits and are willing to give some ability for the range.
It's the same difference between a 7D owner and a 1D X owner. You just don't expect the same level of performance from the 7D as the ID X but there both good at what their designed for.
Just be happy, happy, happy that the third party companies are getting closer and at least keeping the Big Two on their toes.
I do agree with Tony in that Tamron could at least give him and others some king of answer in return. I guess they knew for the price, some would be dissatisfied to start with and there was nothing they could do about it....Show more →
+600.
Well said. I'm completely happy with what Tamron has provided to me at this price point.
p.8 #8 · Tamron 150-600 AI Servo sequential shots only
If Tamron had announced that the autofocus system in servo mode does not function when attached to certain camera bodies, then all potential purchasers could have made an informed decision. That did not happen, and to date there has been no official acknowledgment of a serious, and obvious problem.
I don't think that's a good thing even at its relatively affordable price.
p.8 #9 · Tamron 150-600 AI Servo sequential shots only
brimull wrote:
If Tamron had announced that the autofocus system in servo mode does not function when attached to certain camera bodies, then all potential purchasers could have made an informed decision. That did not happen, and to date there has been no official acknowledgment of a serious, and obvious problem.
I don't think that's a good thing even at its relatively affordable price.
Brian M.
Ditto. I don't see a similar problem with Sigma lenses, which are priced similarly.
It is simple misrepresentation by Tamron when a lens does not function as it should, and it is pretty bad public relations that they have not admitted to the problem and come up with a solution.
p.8 #10 · Tamron 150-600 AI Servo sequential shots only
I doubt very seriously that Canon has one of every camera they have made in the past five years lined up waiting to be tested under every possabible scenari on every lens they've come out with. Everything that's made isn't perfect,. I don't think Tamron purposely false lead the public when they released this lens.
p.8 #11 · Tamron 150-600 AI Servo sequential shots only
dsr1 wrote:
I doubt very seriously that Canon has one of every camera they have made in the past five years lined up waiting to be tested under every possabible scenari on every lens they've come out with. Everything that's made isn't perfect,. I don't think Tamron purposely false lead the public when they released this lens.
Let's assume that there was no intention to mislead, because that's a reasonable assumption. How, then, does one reconcile the lack of response from Tamron after numerous reports of users having AI Servo issues with certain current Canon bodies? I agree that nothing is made perfect, but AF functionality is a pretty big aspect of lens performance, and this problem/limitation/design was not discussed in any of the pre-release reviews or other publicly disseminated info. Are we to believe that Tamron didn't have access to a 7D or a 70D or 1Dmk4 to try their lens out on? I'm willing to be patient and give Tamron some time to conduct further tests based on the reports sent by people like those here, but I'm definitely curious to see how they choose to address and resolve the issue, if at all. I'll also acknowledge the fact that this AI Servo issue is not a deal-breaker for everyone, and this lens may still represent a terrific value for a variety of users.
p.8 #12 · Tamron 150-600 AI Servo sequential shots only
Imagemaster wrote:
Ditto. I don't see a similar problem with Sigma lenses, which are priced similarly.
It is simple misrepresentation by Tamron when a lens does not function as it should, and it is pretty bad public relations that they have not admitted to the problem and come up with a solution.
I'm still hopeful that this lens may meet my needs for airshows and motor sports, but I'm in no rush to be a guinea pig. Especially as I'll be using a 1Ds2. I'm not impressed with their handling of the matter either.
p.8 #13 · Tamron 150-600 AI Servo sequential shots only
In Tamron's defence ( as with Kenko in previous conversations about incompatibilities ) I don't think one can really say there is a 'standard' 7D or 1D4 beyond the specific manufacturing batch / date code / firmware / custom funcs settings with which they presumably tested.
Sometimes even Canon can't determine the cause of a problem with a specific example of a camera and resorts to changing-out the system board.
Tamron will have to be tapping and decoding the communication from the camera to the lens and comparing that to their baseline, then trying to model the cause of variations. It might not be anything they can adapt their lens to accommodate without specific rules for specific batches of each model.
p.8 #14 · Tamron 150-600 AI Servo sequential shots only
luminaire wrote:
In Tamron's defence ( as with Kenko in previous conversations about incompatibilities ) I don't think one can really say there is a 'standard' 7D or 1D4 beyond the specific manufacturing batch / date code / firmware / custom funcs settings with which they presumably tested.
Sometimes even Canon can't determine the cause of a problem with a specific example of a camera and resorts to changing-out the system board.
Tamron will have to be tapping and decoding the communication from the camera to the lens and comparing that to their baseline, then trying to model the cause of variations. It might not be anything they can adapt their lens to accommodate without specific rules for specific batches of each model.
I'll admit that I'm no engineer, but that sounds more complicated than it really might be. After all, there are numerous third-party lenses- including Tamron lenses- that work perfectly well with a multitude of Canon cameras, both current generation and past. I have a Tamron 180 macro that works with my 7D, 5D3, 1DX, and my daughter's SL1.
p.8 #15 · Tamron 150-600 AI Servo sequential shots only
luminaire wrote:
In Tamron's defence ( as with Kenko in previous conversations about incompatibilities ) I don't think one can really say there is a 'standard' 7D or 1D4 beyond the specific manufacturing batch / date code / firmware / custom funcs settings with which they presumably tested.
Sometimes even Canon can't determine the cause of a problem with a specific example of a camera and resorts to changing-out the system board.
Tamron will have to be tapping and decoding the communication from the camera to the lens and comparing that to their baseline, then trying to model the cause of variations. It might not be anything they can adapt their lens to accommodate without specific rules for specific batches of each model.
So you wouldn't blame Tamron if it did not work properly on your 1D3 or 1D4?
Comfortable autofocus:
Tamron’s new SP 150-600mm F/5-6.3 Di VC USD features a USD (Ultrasonic Silent Drive) ultrasonic motor drive for swift and accurate AF response.
At the 500-600mm range, I got neither swift nor accurate AF response in AI Servo Mode. In fact, I got no response whatsoever on either my 7D or 1D4.
Compatible with Canon cameras is not supposed to mean, specific rules for specific batches of each model
p.8 #16 · Tamron 150-600 AI Servo sequential shots only
mitesh wrote:
Let's assume that there was no intention to mislead, because that's a reasonable assumption. How, then, does one reconcile the lack of response from Tamron after numerous reports of users having AI Servo issues with certain current Canon bodies? I agree that nothing is made perfect, but AF functionality is a pretty big aspect of lens performance, and this problem/limitation/design was not discussed in any of the pre-release reviews or other publicly disseminated info. Are we to believe that Tamron didn't have access to a 7D or a 70D or 1Dmk4 to try their lens out on? I'm willing to be patient and give Tamron some time to conduct further tests based on the reports sent by people like those here, but I'm definitely curious to see how they choose to address and resolve the issue, if at all. I'll also acknowledge the fact that this AI Servo issue is not a deal-breaker for everyone, and this lens may still represent a terrific value for a variety of users....Show more →
If you'll check 7 post above your's you'll see on the last line that I said Tamron certainly should have answered Tony and others complaints. I have always agreeded thatTamron does have an oblightion to reconigize and make some kink on statement about this problem to the public.
p.8 #17 · Tamron 150-600 AI Servo sequential shots only
Perhaps Tamron's management made the reasonable assumption that people who buy a Tamron lens would not be concerned about performance, as long as they thought they were saving a few dollars...?
p.8 #18 · Tamron 150-600 AI Servo sequential shots only
molson wrote:
Perhaps Tamron's management made the reasonable assumption that people who buy a Tamron lens would not be concerned about performance, as long as they thought they were saving a few dollars...?
Reasonable performance considering the price is one thing (and I agree) but no response at all on a current crop body (7D) available from Canon is another
p.8 #19 · Tamron 150-600 AI Servo sequential shots only
dsr1 wrote:
If you'll check 7 post above your's you'll see on the last line that I said Tamron certainly should have answered Tony and others complaints. I have always agreeded thatTamron does have an oblightion to reconigize and make some kink on statement about this problem to the public.
I know you did, and I wasn't trying to say otherwise. What I really intended to do is offer a counterpoint to your statement:
dsr1 wrote:
I doubt very seriously that Canon has one of every camera they have made in the past five years lined up waiting to be tested under every possabible scenari on every lens they've come out with. Everything that's made isn't perfect,.
Pat Simonetti replied to you that he himself had tested the lens in "a variety of situations" and was "personally pleased with performance, including AI Servo". Can't we assume that they had access to different Canon bodies to thoroughly test all lens functions? I mean, they could have found every Canon DSLR made in the last 10-12 years on the B/S Board right here if they couldn't get loaners from Canon. How do they manage to get it right for their other lenses?
At any rate, not looking to rehash arguments that have been made already. Just a bit surprised by the denials/silence in the face of evidence that there is an issue for a number of users .
