It's a Toyota. It will keep going unless it runs without oil.
Or until you crash into a tree.
Some Sigma's are top notch mechanically and optically. However the 70-300mm is not such a Sigma.
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What's up with Sigma lenses?
- Thread starter JasonMI
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Or until you crash into a tree.
Some people can break anything
mauibreeze
Forum Enthusiast
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I've only ever had one Sigma lens, the BIGMA lens and it was rock solid, never had any issues with it.
jonrobertp
Forum Pro
Friend drove his Corolla at 80 mph for 1700 miles and the crankshaft was done.
A cheap car is not made for that like a Lexus .
AlphaTikal
Senior Member
The problem I talk about is, it comes slowly. Incompatible means, scratching at the autofocus system at everyday use and slowly its dying. HSM is less affected.
TeeJay626
Leading Member
Which Sigma 70-300 are you talking about? There is the very basic cheap one which compares to the Canon 75-300, there is the APO lens and there is the DG OS lens.
I have the DG OS lens which has been working fine for me so far on my T3i, using it many times with my Kenko Pro 300 1.4 TC. I also have the Sigma 10-20 and I now have the 18-250 Macro HSM.
I have had zero problems with any of my Sigma lenses, and I have gotten some great images. Yea, I would love to have "L" lenses, but right now I can't afford them, so Sigma makes a great alternative.
If you mean that the OP had the wrong tool for the job , I sort of agree with you although 4 years of service divided by $200 is not bad and given that he has no complaints about the quality maybe spending 4 times more on a pro lens would have not resulted in 16 years of service from one or 6 from the other.
However twice you commented on something suggesting that his camera and lens are somewhat not compatible as in not meant to work together and that is clearly not the case.
However twice you commented on something suggesting that his camera and lens are somewhat not compatible as in not meant to work together and that is clearly not the case.
And might be why they cost less than Canon or Nikon lenses.
Or put another way, "it's not hard to get what we pay for".
AlphaTikal
Senior Member
How do you know if the combination is compatible? Not being compatible does not mean that it works or not. In a German forum there is a dedicated thread for this with ton of replies.
It is a known problem with Sigma lenses! The death can happen after 1000 images or 10'000.
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· http://www.flickr.com/photos/blackhole_eater/
· (All photos are creative common licensed. Check them out.)
· English is not my native language.
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It is a known problem with Sigma lenses! The death can happen after 1000 images or 10'000.
--
· http://www.flickr.com/photos/blackhole_eater/
· (All photos are creative common licensed. Check them out.)
· English is not my native language.
Lexus = Toyota
Driving 80mph on a decent corolla is no problem.
Trying to reach 60mph in minimum time every traffic light on the other hand.
That would kill any normal car.
Lexus = luxury design, extra care, higher end components, built to last. Although even they had issues with "sticky gas pedals".
Audi and Volkswagen are by the same company, often sharing the same basic platform. Volkswagen is full of reliability issues. Audi is very good. Just because two cars were designed by the same people and look alike, doesn't mean they share all same components.
Have been driving my Saab that way for the last 122k miles.
Different cars are for different things.
If you want fuel economy, don't expect sporty performance cheap.
If you want a cheap and reliable, realize it has it's limits.
If you are buying the loss leader, realize it is likely not built to last.
Which goes right back at the $190 or so plastic fantastic that OP had.
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OpticsEngineer
Veteran Member
"This is a low cost consumer lens made for average amateur use. I doubt very much that it was made to withstand 25,000 shots a year. That kind of use demands pro quality construction."
In a recent interview (I think I read here on dpreview) the Canon executives mentioned that in the modern era with digital cameras, consumer level lenses get used a lot more than they ever were in the film era. Accordingly they have increased the number of activations/focus cycles they design and test lenses for. But I don't remember them giving a specific number.
In a recent interview (I think I read here on dpreview) the Canon executives mentioned that in the modern era with digital cameras, consumer level lenses get used a lot more than they ever were in the film era. Accordingly they have increased the number of activations/focus cycles they design and test lenses for. But I don't remember them giving a specific number.
I've not photographed professionally for quite a few years, but it used to be common to send lenses and cameras for cleaning, lubrication and adjustment annually, or at least every two years, depending on usage. With very light/casual (non-professional) usage, probably much longer.
Given that lenses are mechanical devices, they're probably going to wear unless lubricated and kept clean.
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