I own a Canon 7D camera. Can anyone tell me the advantages of owning this 2X teleconverter vs The Tamron one? http://www.amazon.com/Tamron-Teleconve
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Will Auto Focus work on anything from 50mm up work with a Tamron? I have the Kenko Pro 300 2x tc and auto focus works on my Sigma 120-400mm f/4.5-5.6 lens and will also work on Canon70-200 in tandem with Canon 1.4x tc II, but does need really good light for that. I would say go for the Kenko Pro 300 series, they come in 1.4 , 2x and 3x, over the Tamron. The Kenko Pro also works on lenses from 50 mm up.
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This is an excellent teleconverter, I can make very good to excellent 11x 14 + prints without a problem. It will not with your lens, it works with the lens for a full frame camera.
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Hmmm... Not the one I bought... I purchased the adapter for NIKON (old school D70s)! BUT... According to Tamron, the tele-converters are compatible with Tamron lenses. Keep in mind that at extreme close-ups, focusing is slow and spotty - Especially in low light conditions. If you can live with that, then these are great! Remember to use a tripod for extreme close-ups. Movement is highly exaggerated especially with slower shutter speeds. Hope this helps!
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I didn't see any difference. I am very happy with mine, it woulds like I believe it should. There was only one issue with the viewfinder which in my opinion become too easily detached, but I am sure that's only my model. I would say do more research on this 1d in comparison to others. You can always buy and return it to if you don't mind spending a few bucks on shipping it back if you don't like it.
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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 $$.
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Yes. I struggled with the decision to buy the 2.0 TC or the sigma 50 -500 lens to get more zoom as 200 didn't reach far enough for my needs. In the end I got the teleconverter as it was less money and mainly a way to avoid another heavy lens. It works out very well. loss of sharpness and some f/stops as others have described but you will hardly notice. faster glass and more sharpness costs thousands of dollars which i'm unwilling to spend. i'm pleased going this way.
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I realize your question is now 3 yrs old, but I may still be able to help someone else. My favorite lens for my T2i is the Tamron 118-270mm. Talk about versatile. I have the Canon 50mm and a zoom along with the standard kit lens, but none compare to the Tamron...no more changing the lens so often.
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I have tested the Canon 1.4x teleconverter and it works well. AF is also listed as possible even for the Canon 2x teleconverter. Listed here: http://www.bhphotovideo.com/FrameWork/charts/canon1_4xExtender.html http://www.bhphotovideo.com/FrameWork/charts/canon2xExtender.html Here is the list for the Kenko Pro 300 teleconverter which is a highly rated teleconverter and it is compatible with the the lens as well for both the 1.4 and 2.0: http://www.kenkoglobal.com/pdf/TELEPLUS_DGX_series_CompatibilityList.pdf. Obviously, things will be more challenging with a 2.0 teleconverter but not impossible. It will all depend on how steady you are with the camera(tripod), you ability to focus manually, and the amount of available light etc.
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Thanks for the information. I was using a Canon 28-135 IS USM as my walk around travel lens and loved it until it got stolen in an airport! :-( Now I'm in the market for a new lens and I'm leaning towards the Tamron. I've used their lens in my past photography life with my old AE-1 Program and I'd LOVE the 18-270 if I can swing the $$$. I'm hunting eBay as well, as that's where I got my 28-135 and had NO problems with it at all!
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No, if you want to look further you want a teleconverter - http://www.amazon.com/s/ref=nb_sb_ss_i_1_10?url=search-alias%3Delectronics&field-keywords;=canon%20teleconverter&sprefix;=canon+tele%2Celectronics%2C283
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The tamron is supposed to be good, but if you got the money, I'd suggest buying the canon. It is spectacular. The only thing I don't like about it is that the inner barrel is plastic, though I guess this is also true for the tamron.
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Big issue on using teleconverters is lighting. if you don't have good lighting then no. also the speed of your focus has an impact in performance. slow autofocus and you camera will hunt. I ha d a sigma 70 - 300mm lens and it did ok. but my tamron is so much better. especially with teleconverters. one thing the keep in mind. your f factor with change with these.so an f4 be much higher. hence lighting issues.I have even stacked them with mixed results.I have a nikon D3100 with 2 nikon lens, 18-50mm and 50-200mm, and a tamron 70-300mmand 2 of these teleconverters.
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Make sure you handle both cameras first before you decide. I was coming from a 30D and deciding between the 60D and 7D. For my money, there's no comparison. I didn't like the controls on the 60D at all, especially the smaller, cheap-feeling (IMO) selector wheel on the 60D. The 7D's selector wheel is like the 30D, 40D, and 50D, larger, positive click, etc. The 60D wheel is very annoying, at least to me. Also, removing the joystick from the 60D was a big mistake IMO. Again, 30D, 40D, 50D all had it, and they removed it from the 60D, but the 7D still has it. That along with the JPEG/RAW button, better focusing and overall faster speed made the choice a no-brainer for me. Make sure you handle both cameras first before you decide. I was coming from a 30D and deciding between the 60D and 7D. For my money, there's no comparison. I didn't like the controls on the 60D at all, especially the smaller, cheap-feeling (IMO) selector wheel on the 60D. The 7D's selector wheel is like the 30D, 40D, and 50D, larger, positive click, etc. The 60D wheel is very annoying, at least to me. Also, removing the joystick from the 60D was a big mistake IMO. Again, 30D, 40D, 50D all had it, and they removed it from the 60D, but the 7D still has it. That along with the JPEG/RAW... » Read More Make sure you handle both cameras first before you decide. I was coming from a 30D and deciding between the 60D and 7D. For my money, there's no comparison. I didn't like the controls on the 60D at all, especially the smaller, cheap-feeling (IMO) selector wheel on the 60D. The 7D's selector wheel is like the 30D, 40D, and 50D, larger, positive click, etc. The 60D wheel is very annoying, at least to me. Also, removing the joystick from the 60D was a big mistake IMO. Again, 30D, 40D, 50D all had it, and they removed it from the 60D, but the 7D still has it. That along with the JPEG/RAW button, better focusing and overall faster speed made the choice a no-brainer for me. « Show Less
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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.
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Actually it's the exact same sensor...the only difference there is that the 7D uses dual Digic IV processors where as the T2i only uses a single one (which affects the burst FPS). The sensor and processor are identical. It might not be *quite* as good at low-light only because using a single processor instead of 2 means there's not as much in-camera PP but it's not a huge difference (pictures looked very similar taken between the 7D and T2i).
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You are better off paying the extra for the Nikon teleconverter 1.7 times converter. Have had no luck with the vivitar, not as compatible as the claims. A lot of jitter on the lense.
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will a tamron 2x AF teleconverter work this a Tamron 28X300mm Aspherical XR Di Lense and will I gain anything with it. Thanks Steve