teleconverters: If I purchase this lens (150-500 Sigma for canon camera) can I use my canon teleconverters or do I need to purchase the sigma ones?
1183901
The Canon TC's do not work on the Sigma. Expect to use only Canon lenses w/ Canon TC's. Even then, Canon TC's are not universal to all Canon lenses. Kenko 1.4X PRO 300 Teleconverter DGX for Canon EOS Digital SLRs - I use this and you will still get AF w/ some caveats. Older versions of this Kenko TC require a pin tape (just Google it) for AF to work but the one I received in 2010 did not require a pin tape - AF worked out of the box. I can vouch that this lens and TC work together on a 450D/XSi but always check Kenko's site for the lens compatibility chart if you decide to use it on another lens (not sure if Amazon has the chart posted on the product page). The 1.4x Kenko brings the benefit of 210-700mm at the cost of two stops, slower AF/additional seek time, and the occasional inability to get an AF-lock. You get some pictures you would otherwise miss and lose some pictures you might have otherwise had. This Kenko also works with numerous other lenses - Canon and Sigma. Probably Tamron but that's just a guess. So there is definitely value to the Kenko TC beyond the 150-500 Sig. Important Notes: - All TC's cause a loss of light and and can be expected to bring some loss of image quality based on the quality/magnification of the TC (just a bit of softness in this case). This Kenko will lose you around two stops but grant 210mm-700. The impact on picture quality is nominal/immaterial to me but each photog is different. - Do not expect AF to work 100%. The AF will seek especially w/ low contrast subjects where the AF is targetted (darker object on dark bg, lighter object on light bg). Don't even try it in poor lighting. This is just the nature of light loss from the TC and a f/5.6 lens. **Anytime you use a TC, be sure the appropriate lens is listed in the applicable lens compatibility chart. Using incompatible cameras/lenses/TC's could result in permanent damage - smashed mirrors, scratched lenses, etc.**
387099
If you can afford the Canon. Get the Canon. It's a damn good lens. But if you're not trying to put down a lot of money and still want top notch quality, the Sigma is just that good. Sigma's on that level, but the Canon is hard to beat. My option was the Sony Carl Zeiss 85mm. My advice, see if you can test them both out and go from there.
1588427
Hi, Jason. You tend to see some degradation in image quality as well as some vignetting with the 2X teleconverters. While the canon is better than say a Sigma or a Tamron it will still affect image quality some. Using the 1.4X, at 200mm with the 70-200L, I have seen some very minor loss in sharpness in the corners, however I have to pixel peep to see that.
2231209
This teleconverter is for Tamron lenses that you want to use on a Canon camera. I have a Tamron 18-270 lens and a Tamron 150-600 lens and both can be used with the teleconverter on my Canon T3i. Once you get beyond 150 mm, you may have to switch to manual because the AF may not work. But it works great and worth the $$.
913376
I bought this for use on he D800, it does not work, I wanted it for the 150-500 Nikon lens, I contacted Sigma they confirmed that the lens would be too slow to use with the convertor.
1645519
I have the same lens & teleconverter and it works perfectly. Good luck hope you enjoy this setup.Wayne
1645517
I have the same lens & teleconverter and it works perfectly. Good luck hope you enjoy this setup. Wayne
706525
Sorry, but it is not compatible with the lens. You generally need a 2.8 or larger (smaller number) aperature lens. You should go on the Nikon websiteand check the teleconverter compatibility chart before buying a teleconverter or lens to use with a teleconverter.
407
Using this lens with the 1.4X teleconverter would be about the same as the Canon 70-300mm as you lose one f/stop with the 1.4x and a little quality. So you would end up with a 100-280mm f/5.6 lens. Either of your choices would work for outdoor day photography. The teleconverter combinations gives you a very sharp f/4 lens for other use.Neither of those lenses are good for use in a darkened auditorium. You need a much faster lens for that, f/2.8 at a minimum, preferably a f/1.8. Look into the Canon EF 85mm f/1.8, Canon EF 50mm f/1.8 or f/1.4, for your indoor photography. Using this lens with the 1.4X teleconverter would be about the same as the Canon 70-300mm as you lose one f/stop with the 1.4x and a little quality. So you would end up with a 100-280mm f/5.6 lens. Either of your choices would work for outdoor day photography. The teleconverter combinations gives you a very sharp f/4 lens for other use.Neither of those lenses are good for use in a darkened auditorium. You need a much faster lens for that, f/2.8 at a minimum, preferably a f/1.8. Look into the Canon EF 85mm f/1.8, Canon EF 50mm f/1.8 or f/1.4, for your indoor photography.
285805
Looks like that one is for Nikon mounts, so I would say no. Try this one instead: Sigma 55-200mm f/4-5.6 DC Telephoto Zoom Lens for Canon Digital SLR Cameras
1359463
I stupidly bought this teleconverter and it fits my Nikon D800 but will not attachj to my Sigma 170-500mm lens. It seems the lens elements on both ends protrude and will not allow a connection. It probably only attaches to lenses with an internal motor.
151088
Yes it will work. Keep in mind that you are getting cheaper glass than if you were to buy Canons 2X teleconverter. I have used it with my 6D and the canon 70-200mm lens and it worked fine. I was in a natatorium later in the day so the light was not optimal for testing, but the focus was softer using the 2x, which is to be expected. Teleconverters work best with longer focal length prime lenses and tend to have more of a negative impact on image quality with zoom lenses. So your mileage may vary. If you don't need the full magnification of 2x and can live with a 1.4xm the smaller teleconverter should (in theory) have less negative impact on image quality. It was not too bad for me with the 2x but it was noticeable.
843342
Very sorry, but I have no experience in the use of the 1,4 teleconverter with 150-500 mm. Be aware that at more than f. 8 the autofocus does not work.....so if the maximum opening is f. 5,6 (but I did not check) you can use the teleconverter only with the complete opened diaphragm of the lens.
537011
I also have the canon 55-250mm and was shopping for a Kenko Teleconverter. Am I understanding correctly, that if I don't mind manually focusing, it still might work?
1929682
I don't think so, because sigma have their own teleconverter for this lens.Even Nikon. Nikon have their own teleconverter for their own 70-200 and that's not fit on any other Nikon lens.I guess you gotta ask sigma. They have contact info in their website. Good luck!
888898
As stated by the other respondents, yes it has autofocus which can be switched off to manually focus. I've had no issues with the autofocus on my Canon 40d. I also own a sigma 1.4 teleconverter. With the teleconverter on the autofocus doesn't work and you have to focus manually. I've found that 500 is usually plenty of range so honestly I've only had the teleconverter on it once and then only to play around. I was also highly impressed with the OS (Optical Stabilization) on this lens. It is very heavy, but with the OS it is actually not nearly as hard to hand hold as I thought it would be. (But I always use a tripod if I can... no kidding it's very heavy!) Hope this helps! -ed
888897
As stated by the other respondents, yes it has autofocus which can be switched off to manually focus. I've had no issues with the autofocus on my Canon 40d. I also own a sigma 1.4 teleconverter. With the teleconverter on the autofocus doesn't work and you have to focus manually. I've found that 500 is usually plenty of range so honestly I've only had the teleconverter on it once and then only to play around. I was also highly impressed with the OS (Optical Stabilization) on this lens. It is very heavy, but with the OS it is actually not nearly as hard to hand hold as I thought it would be. (But I always use a tripod if I can... no kidding it's very heavy!) Hope this helps! -ed As stated by the other respondents, yes it has autofocus which can be switched off to manually focus. I've had no issues with the autofocus on my Canon 40d. I also own a sigma 1.4 teleconverter. With the teleconverter on the autofocus doesn't work and you have to focus manually. I've found that 500 is usually plenty of range so honestly I've only had the teleconverter on it once and then only to play around. I was also highly impressed with the OS (Optical Stabilization) on this lens. It is very heavy, but with the OS it is actually not nearly as hard to hand hold as I thought it would be.... » Read More As stated by the other respondents, yes it has autofocus which can be switched off to manually focus. I've had no issues with the autofocus on my Canon 40d. I also own a sigma 1.4 teleconverter. With the teleconverter on the autofocus doesn't work and you have to focus manually. I've found that 500 is usually plenty of range so honestly I've only had the teleconverter on it once and then only to play around. I was also highly impressed with the OS (Optical Stabilization) on this lens. It is very heavy, but with the OS it is actually not nearly as hard to hand hold as I thought it would be. (But I always use a tripod if I can... no kidding it's very heavy!) Hope this helps! -ed « Show Less