Reviews and Problems with Canon Extender EF 2x III
Showing 1-10 of 500
Extender is what I expected
Troy, B&H Photo
1 week ago
Excerpt: Too soon to tell. Gave it 4 stars based off a couple quick pics inside. Hand hedd with my 200 mm L lens (now 400) at iso 1000. Picure was of the lens box 20 feet away. Was able to magnify the pic and clearly read the smallest print on the box (font 4 I think) Very good for handheld. Don't like the fact a few f stops are sacrificed. This will perform well on a tripod or in daylight.
Excerpt: This 2x extender pairs perfectly with my Canon AF 70-200 F2.8 zoom. Focus response and accuracy have been great with my 5D Mk III. I do a lot of outdoor shooting of wetlands and aquatic settings including detail and abstracts of moving water (creeks, rapids and cascades). Extender is a rugged, lightweight addition to my field pack that adds a lot of valuable flexibility to my shooting verses adding a bulky and heavy 400mm lens. Highly recommended.
Pros: Fast / accurate auto-focus, Lightweight, Strong Construction
Excerpt: Adds the distance I was wanting to bring in. I have not had the need to use this much yet, but from initial testing it appears to provide the extra extension that was missing on occasion. Definitely a keeper in my carry around bag.
Excerpt: I had doubts about using an extender. I just didn't think my images would be as sharp, but they look great! I have been using the extender with my 70-200mm 2.8 lens which is a very heavy combination, but I got by with just a monopod at the zoo and had very sharp images.
Pros: Durable, Easily Interchangeable, Fast / accurate auto-focus, Strong Construction
Excerpt: I take this with me all the time in the field. I doubles my versatility in a tiny package. My 400 mm is also an 800 mm for almost no extra weight or bulk. There is no reason to leave this out of your bag when you are out to bag that bird.
Pros: Consistent Output, Durable, Easily Interchangeable, Fast / accurate auto-focus, Lightweight, Nice Bokeh, Rugged, Strong Construction
Excerpt: I tested the EF 2x III with... 5D Mark III, firmware 1.2.3 EF 70-200mm f/2.8L IS II USM EF 400mm f/5.6L USM Bottom line: Results with the EF 70-200mm f/2.8L IS II USM were good. Results with the EF 400mm f/5.6L USM were bad--so bad, I threw out all the shots. With the 70-200mm, autofocus and IS worked normally, as if the EF 2x III wasn't there. I hand held all my shots. Details in the central area of frame were crisp with no obvious chromatic aberration.
Excerpt: In wildlife photography, one seldom sees a distant object of interest filling the entire frame. Therefore, options to improve the picture often include: 1. cropping to the desired object size, or 2. using a longer lens, or 3. using an extender with a compatible long lens. In the comparison between 1 and 3, I used a a Cannon 5d Mark II and a EF100-400mm f/4.5-5.6 L IS USM.(Push/Pull Model) ISO 400, Aperture Pref., Daylight WB.