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FotodioX Autofocus 2x Teleconverter for Canon EF

BH #FOEOS2XAFTEL • MFR #EOS-2X-AF-TELE
25 reviews
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FotodioX Autofocus 2x Teleconverter for Canon EF
Key Features
  • EF-Mount Teleconverter
  • 2x Magnification Factor
  • Communication Between Lens & Camera
  • Multi-Coated Optics Limit Ghosting/Flare
Extend the reach of your existing Canon EF-mount lenses with this Autofocus 2x Teleconverter from Fotodiox. This converter doubles the effective focal length of your lens, turning a 50mm lens into a 100mm optic for example. It also maintains communication between the lens and camera and uses multi-coated optics to limit ghosting and flares. Additionally, the four element design ensures sharp imagery. This converter is compatible with EF/EF-S-mount camera bodies and with most EF-mount lenses. To ensure autofocus compatibility, confirm your camera's AF sensitivity will support the two stop reduction in light.
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FotodioX EOS-2X-AF-TELE Overview

Extend the reach of your existing Canon EF-mount lenses with this Autofocus 2x Teleconverter from Fotodiox. This converter doubles the effective focal length of your lens, turning a 50mm lens into a 100mm optic for example. It also maintains communication between the lens and camera and uses multi-coated optics to limit ghosting and flares. Additionally, the four element design ensures sharp imagery. This converter is compatible with EF/EF-S-mount camera bodies and with most EF-mount lenses. To ensure autofocus compatibility, confirm your camera's AF sensitivity will support the two stop reduction in light.

UPC: 847372029525

FotodioX EOS-2X-AF-TELE Specs

Mount
Canon EF
Magnification
2x
Optical Design
4 Elements in 3 Groups
Light Loss
2 Stop
Length
1" / 25 mm
Diameter
2.6" / 66 mm
Weight
6.5 oz / 184 g
Packaging Info
Package Weight
0.45 lb
Box Dimensions (LxWxH)
3.4 x 3 x 2.3"

FotodioX EOS-2X-AF-TELE Reviews

Doubles zoom

By Jonathan
Rated 4 out of 5
Date: 2025-01-12

Doubles zoom and images are sharp. It's a bit tight getting my 55-250 lens on. Shutter speed is quartered to get the same brightness due to the nature of teleconverters. Autofocus won't focus in the viewfinder, as mentioned in the description, but can usually get a good focus in live shooting mode. Some people complained about image sharpness, my guess is they aren't getting the focus right, or are having trouble with motion blur due to a slower shutter and the lens being zoomed in further. Using the live shooting mode zoomed in to 10x works really well for judging the manual focus. Can get super close to subjects for a low price. I can even get small butterflies to fill the whole frame when using my 55-250 with the teleconverter.

I love it

By Ronald
Rated 5 out of 5
Date: 2022-05-18

I love it

See any errors on this page?

question

Will this lens work with my EF 75 300 mm
Asked by: Anonymous
Yes but, I have not been able to release the lens from the teleconverter so I would not recommend this model.
Answered by: John G.
Date published: 2024-03-28

question

Is this for canon rebel T3/1100D
Asked by: Angie O.
Yes, the FotodioX Autofocus 2x Teleconverter for Canon EF/EF-S may be used on the Canon EOS Digital Rebel T3 DSLR camera. Do note that, depending on the maximum aperture of the lens you intend to use on the above teleconverter, you may have to focus the lens manually if the lens has a maximum aperture of f/2.8 or smaller.
Answered by: Manzell L.
Date published: 2018-08-26

These extenders "communicate with the camera." ...

These extenders "communicate with the camera." Does this include image stabilization?
Asked by: Brian
Yes, IS electronics are communicated over from the lens to the camera.
Answered by: Rob
Date published: 2020-07-07

question

Will this lens work with a Canon EF-S 55-250 zoom?
Asked by: Anonymous
Yes, you may use the Canon 55-250mm f/4-5.6 EF IS lens together with the Fotodiox AF 2x Teleconverter for Canon EF/EF-S Lenses. However, do note that, due to the f/4-5.6 aperture range of the 55-250mm lens, when using the Fotodiox teleconverter, you would have to focus the lens manually. Autofocus would not be compatible for use with this setup.
Answered by: Manzell L.
Date published: 2018-08-26

I have a canon 200d with a tamron 18-200 lens ...

I have a canon 200d with a tamron 18-200 lens will this converter work with my lens?
Asked by: Angela
The FotodioX Autofocus 2x Teleconverter for Canon EF will fit your camera and lens and double the focal length. However, you will need to focus the lens manually due to the loss in aperture.
Answered by: Dan W
Date published: 2022-05-25

Will this work on a Canon EOS 90D with a 18-135 ...

Will this work on a Canon EOS 90D with a 18-135 is USM lens?
Asked by: Robert
Again, I have this same lens and struggle with this answer. So I must dive deeper with you guys. To my understanding, at 135mm the usual max opening or size f-stop of 5.6 is effectively reduced by two stops effectively limiting the f-stop to the equivalent of f11. As such to adjust for the loss of 2 stops worth of light, I would increase the length of my shutter speed by the same two stops. Why would this impact the ability of of the lens to perform an autofocus. F11 stop is not extreme by any means (certainly not like using a 6 or 10 stop ND filter, where autofocus would definitely be affected). So why do you believe autofocus would be in question by this example? I want to purchase such a converter, but not sure I am willing to lose autofocus in the process. Please help me understand you explanation better. Thanks
Answered by: Thomas
Date published: 2023-12-19

Will this teleconverter work with my Canon EOS ...

Will this teleconverter work with my Canon EOS M100 mirrorless SLR and my EF-M 55-200mm zoom lens?
Asked by: Phil
Unfortunately, it will not. This is for Canon EF/EF-S mount lenses and will not fit on EF-M mount lenses.
Answered by: Jeremy
Date published: 2021-09-12

will this work on a Canon 60D , 70-300 lens? ...

will this work on a Canon 60D , 70-300 lens? (ultrasonic)
Asked by: Phyllis
The FotodioX Autofocus 2x Teleconverter for Canon EF is compatible with the Canon EF 70-300mm lens and the Canon EOS 60D DSLR Camera. However, you will have to focus manually.
Answered by: Lawrence C
Date published: 2024-03-28
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