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0
votes
2answers
339 views

Can I use an Canon 2x Extender on my EF-S 18-135mm lens?

I want to get into taking more bird images, and am on a very limited budget. I am wondering if I can use the Canon 2x Extender on my Rebel T4i camera's EF-S 18-135 kit lens. If so what sort of price ...
9
votes
2answers
498 views

When using an Extender, does it actually change the Aperture of the lens?

I just bought a Canon 2X Extender and I always believed that It would only result in 2 Stops loss of light and not change the aperture. When I tested this extender on a Canon 135mm F/2 lens, the ...
6
votes
2answers
4k views

What are the differences between the Canon extenders?

My wife has a Canon EF 100-400 f4.5-5.6L IS USM Telephoto Zoom Lens. Price is not that important to me, but I am unsure which of the four extenders I should purchase. Canon has four extenders that I ...
6
votes
2answers
1k views

Is replacing a 70-200mm Canon lens with a 135mm and extender a good idea?

In the Canon camp we are all very familiar with the range of 70-200mm lenses. I am very impressed by the 135mm f/2.0 L though. I am considering getting rid of my 70-200mm lens in favor of the 135mm ...
2
votes
2answers
580 views

Do third party extenders for Canon exist?

I was looking into extenders(Teleconverter) for Canon lenses, and they are quite expensive at around $450 for the 1.4x III or 2x III. I know that extension tubes are a different story, and since they ...
8
votes
2answers
308 views

Are there any downsides in using 2x extenders?

What are the negatives with using teleconverters?
4
votes
1answer
561 views

Do you suggest using an extender/tele converter with a Macro lens such as Canon 100mm f2.8 macro lens?

Do you suggest using a teleconverter with a dedicated macro lens? I have tried out using a Kenko TC with canon macro lens - however I am not 100% satisfied with the "extra" magnification that I got on ...
7
votes
2answers
271 views

Why can only certain Canon lenses be fitted with an extender?

Is there a reason only certain lenses can be fitted with an extender? I'd really love to be able to fit the extender to some of my cheaper lenses.