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Canon EF 2.0x II : Specifications and Opinions

Canon EF 2.0x II

The Canon EF 2.0x II is a extender lens for FF and APS-C, manufactured from 1999 to 2011 (discontinued). The average price was 380 €;

16 users have given it an average vote of 8.8 out of 10.

MOUNT

This lens is available with the following mounts:

Canon EF: this lens is compatible with reflex fullframe and APS-C Canon EF.

Specifications
Lenses/Groups	7 elements in 5 groups
Weather sealing	Yes
Weight	265 g
Dimensions	72 x 58 mm
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Reviews

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The following opinions have been automatically translated with Google Translate.

Samuele Mazzini

sent on October 11, 2023

Pros: Multiply the focal length while maintaining unchanged automatisms and colors

Cons: Slight loss of sharpness at maximum aperture

Opinion: I bought this multiplier in view of my next trip to Kenya and for the moment it seems to be great. Using it on a 70 200 F4 Smooth I become a 140 400 F8. On FF it is not a big problem since you can safely raise the ISO. The situation is different for APSC systems. In that case I would disselglierei a priori, unless it is mounted on brighter lenses. From what little I could see I noticed a slight drop in sharpness at F8 (ie at maximum aperture) that tends to decrease from F10 upwards, becoming almost equivalent to the lens without multiplier. Both colors and automatisms remain 100% unchanged. Surely the third series will be superior, but it also costs twice as much. I recommend it for quality / price ratio to those like me who do not have particular professional needs for nature photography, or to those who use it mainly with closed apertures (eg landscape, architecture etc.)

Riccardo Arena Trazzi

sent on October 21, 2022

Pros: Duplicates focal length while maintaining AF and IS

Cons: Makes you lose two stops, sharpness and is not compatible with all lenses

Opinion: He does his duty but I hoped better to be honest. Maybe version III will be better, sooner or later I'll try. Tested on different optics, L series telephoto lenses in particular but also "weird" combinations such as the 135L. The focal length doubles or the loss of AF if the brightness falls below the minimum limit for this combination. For example, duplicating a 70-200 f/4 L IS you get a 140-400 f/8: for some SLRs it is too dark and they will work in MF manual focus, for others there will be a limitation on the number of AF points and if you will have only one or a cloud of central points. On mirrorless the best situation. Unfortunately there is a protruding front lens that "enters" the lens to be duplicated: this makes the duplicator incompatible with all lenses that have a rear lens "flush" with the barrel. To have no doubts, look on the Canon website for compatibility between lenses and this duplicator. For compatibility with third-party lenses I can not say anything, you have to go to trials.

Perinot Antonio

sent on April 26, 2020

Pros: It maintains all automationswith all L optics from 135 f/2L is tropicalized.

Cons: Too bad it can't be used with 100 Macro f/2.8 IS

Opinion: I was also undecided whether to take a canon extender or a compatible to multiply my 135 L and 200L ii and get a 320 f/4 and 400 f/5.6. I had tried a universal but it had not satisfied me. Instead I took used less than 300 degrees this second generation canon and I fell in love with it: the loss of sharpness is negligible, the autofocus with the 6D hooks that is a beauty even birds in flight. In January of this year I bought the 90D and the latest version of the 100-400 f/5.6 IS USM and I thought I'd sell it, but I have verified that with the 90D in LIVE view hooks, focuses and automatically follows even at f/11 with 100-400, so I keep it to photograph the moon and more on easel, I get an 800 f/11 autofocus from 26 magnifications!!

Italystile

sent on February 10, 2017

Pros: tropical conditions

Cons: B.C

Opinion: Taken to multiply the 300 f / 2.8 turned out great, well-built and sturdy. You notice an increase in chromatic aberration with respect to the optical not multiplied, but all in all in an acceptable manner. The AF slows down and in dynamic situations you feel the difference, however, remains usable and reliable as accuracy and consistency of set fuocornAlberto.

Japko

sent on August 22, 2016

Pros: Price to be used, yield, Construction, Tropicalizzato.rn

Cons: None when used with a number 1!

Opinion: Taken recently used. I use it with the 70-200 L f / 4 smooth. It is giving me beautiful soddisfazzioni. By doing so I'm getting close to the 400mm focal length to see if I like it and no svenarmi. M idiviene an f / 8, but during the day no problem. AF fast even if only the center of 1D. Direc which is very valuable this extender. Working well the files you are obtained excellent results even with home zoom and Canon not only with fixed.

There are 1 more reviews. Show all »

Photos taken with Canon EF 2.0x II

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Reviews » Lenses » Lenses Canon » Canon EF 2.0x II

Canon EF 2.0x II : Specifications and Opinions

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Reviews

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Photos taken with Canon EF 2.0x II