2 x teleconverter canon eos

Best of luck -- hide signature Reply Reply with quote Reply to thread Complain. My response will be a bit controversial. Larawanista's gear list: Larawanista's gear list. Franz Kerschbaum's gear list: Franz Kerschbaum's gear list.

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Handling and Features Performance Verdict Specification This 2x teleconverter from Kenko fits between your camera and a lens, increasing the focal length of the lens by a factor of two and reducing the maximum aperture by two stops. Kenko Teleplus HD DGX 2x Handling and Features With a weight of only g, this 2x converter is an ideal lightweight solution for adding extra telephoto reach to your existing kit.

Kenko Teleplus HD DGX 2x Performance To test the converter, we checked the clarity produced with the mm lens at 70mm, with the converter as well as without to see how much effect it has on image quality. How to read our charts The blue column represents readings from the centre of the picture frame at the various apertures and the green is from the edges.

Averaging them out gives the red weighted column. The scale on the left side is an indication of actual image resolution. The taller the column, the better the lens performance. How to read our charts Chromatic aberration is the lens' inability to focus on the sensor or film all colours of visible light at the same point.

Severe chromatic aberration gives a noticeable fringing or a halo effect around sharp edges within the picture. It can be cured in software. Apochromatic lenses have special lens elements aspheric, extra-low dispersion etc to minimize the problem, hence they usually cost more. Previous Next. Other articles you might find interesting Refractique Lensball Review.

Lensbaby Creative Mobile Kit Review. Metabones Speed Booster Review. ElSid 13 Using stacked 2x teleconverters clearly reduces the sharpness of the image, but then it is allowing you to get closer to the action.

I suppose that depends how exciting you find a For Sale sign :. Let's compare the full size Photo 2 left and Photo 5 right. They are taken at approximately equal 35mm-equivalent focal lengths, but Photo 2 uses the plain lens, while Photo 5 uses two 2x teleconverters. Notice how washed out and bright the image appears. This is probably caused by internal reflections created by the 2x teleconverters. When comparing Photo 2 and Photo 5, also notice how the items in the foreground are more in focus in Photo 5.

This is because the 2x teleconverters are "dumb" and simply relay the electrical messages to and from the camera without doing anything clever. So although the camera reported a lens aperture of f11 in Photo 5, the actual aperture was 4 stops lower due to the reduced amount of light being let in by the 2x teleconverters.

The Canon 'L' range of teleconverters Extenders do clever things in order to report the true aperture, but they are only compatible with certain Canon lenses. Good question! I'm not going to answer that one, because it depends on your style of photography.

However, I will answer the following question: Is it worth stacking two 2x teleconverters? I shall compare the two mm shots taken with one and two 2x teleconverters. The reach is mm or mm accounting for the crop factor.

The image quality will be rather poor though. If this was a Canon teleconverter, it would report the true, effective aperture to the body, and the body would simply not do any autofocus. This has to be enforced because at such small effective apertures, the autofocus sensors tend to "black out" due to their baseline being longer than the projected image from the lens via the split prisms in the AF system.

So with a Canon teleconverter, the camera would know that AF was going to be a problem, and it would switch it off.

So the camera may well attempt to autofocus. But I'd be really surprised if it worked very well. It might, but it really shouldn't. Better would be a 1. If the Bower has the pin contact mount, then it will report the effective maximum aperture and the camera will not even attemp AF.

So if i put it on my mm It would be better to manual focus. We dig into the detail The Nikon Z mm F2. With a versatile focal length range and a fast aperture for low light photography and blurry backgrounds, this lens promises sharp imagery and smooth bokeh with minimal aberrations.

How does it actually perform? Find out in our full review. If you're looking to speed up your editing workflow, few pieces of hardware can make complex masking, brushing and cloning jobs easier than a digital pen.