News, Tips & Reviews
About Us
The Professional's Source Since 1973
  • Help
  • 800.606.6969
Ask Our Experts800.606.6969
Hello, Log InAccount & Orders
My Cart

Join Bild Expo 2025 - Presented by B&H

Video Chat with a Photography Expert - Live
Home

Canon Extension Tube EF 25 II

BH #CAETEF25Q • MFR #9199A001
458 reviews
Print
Canon Extension Tube EF 25 II
In Stock
$144.95
Add to Cart
Free Expedited Shipping
Protect Your Gear
Add a protection plan from $23.00
See Options
Used from $64.95
Ask an Expert
800.606.6969

Canon Extension Tube EF II Overview

The result of using extension tubes is that the distance from the back of the lens to the film surface is longer, which means you can take photographs at shorter distances to the subject. Extension tubes are thus commonly used for macro photography and sometimes for closeup portraits.

When using the camera's TTL metering system, no exposure compensation will be required (exposure compensation is required for handheld meters).

This updated version II is now also fully compatible with Canon Digital EF-S lenses, as well as standard photo EF and TS-E lenses.

Extension Tube EF 25 II is recommended for lenses with a focal length of 50mm and up (EF-S 18-55mm can be used at middle and tele zoom settings).

Shortens focusing distance of lens
Compatible with EF-S lenses, as well as EF and TS-E lenses
White-index mark provided for digital SLR EF-S lenses
Red mark provided for photo lenses
UPC: 013803035605

Canon Extension Tube EF II Specs

Mount
Canon EF
Length
25 mm
Packaging Info
Package Weight
0.4 lb
Box Dimensions (LxWxH)
3.4 x 3 x 3"

Canon Extension Tube EF II Reviews

EF 12 II and extenders

By Gregg
Rated 5 out of 5
Date: 2025-02-11

Like some others perhaps, I wondered if it would be possible to use this extension tube as a means for stacking Canon teleconverters. After purchasing the EF 12 II from B&H, I tried this out with a pair of 2x III Canon EF extenders on my older EF 500mm f/4 IS USM lens. Put simply, it worked. I also stacked it between a 2x III and 1.4x III as well (giving me a 1400mm reach at about f/12). This worked fine on my three different bodies (5D3, 5D4 and 5Dsr). With both 2x extenders, this is the full frame view at 2000mm of a waxing gibbous e moon, at what I assume to be f/16. The stacking information did not register in the IPTC data however, which only recorded one extender and a 1000mm focal length. The settings for the image, recorded at 6:21pm on Feb. 10, 2025, were: 1/2000 at 2500 ISO on a Canon 5D4, and f/16, along with image stabilization (IS). The overall quality was better than expected. I've used it to photograph wildlife during the daytime as well but with manual focus only, as you might imagine, that is a bit of a chore. I put the lens and extenders on a Gitzo monopod but a tripod is really your best option. So although it's not advertised for this kind of use, you can indeed use this in between extenders for longer reach. The kind of photography you can do of course is limited. For lunar landscapes or any other subject that's not moving quickly, it's a good option for those without the deep pockets to afford Canon's pricier 1200mm lenses.

Good quality,

By Braden
Rated 5 out of 5
Date: 2023-02-10

After some trial and error I finally got this beauty to work works perfectly on the sigma 105 macro 2.8 Definitely had an issue with my 70-300 4-5.6L would not focus til I was at 300mm

See any errors on this page?

Sony 7

Sony 7
Asked by: Donna
This product is for use with Canon EF mount lenses and not for Sony a7 series cameras.
Answered by: Yoni S
Date published: 2020-08-02

Is this extension tube compatible with the Canon ...

Is this extension tube compatible with the Canon -70 - 200mm f/2.8L IS II USM lens. I have tried it on this lens and others and I can't get it to focus manually or automatically. Bad tube?
Asked by: Lynda
It is compatible , just be aware that this is to help you focus close (micro) not a telephoto use .
Answered by: vilson
Date published: 2021-02-18

Will this work with non Canon (Tamron, Sigma etc) ...

Will this work with non Canon (Tamron, Sigma etc) lenses?
Asked by: Milton
If the lens has a Canon EF or EF-S mount, it will work - if the lens's focal length is adaptable to the extension. If the lens has autofocus, it will drive its motor and will always work in manual mode. If the lens has a Canon FD or R mount, it will not work.
Answered by: Ralph
Date published: 2021-05-09

question

What kind of results can one expect using Canon's 70-300L? How much closer is focusing improved?
Asked by: Daniel D.
Basically you will use this so your Canon EF 70-300mm f/4-5.6L IS USM Lens will be able to focus closer than the lens's native close focusing distance of 3.94' / 1.2 m. We were not able to find information as to how much closer but we would guess that bout 2' would not be unreasonable. People with telephoto lenses by this to do exactly this, get a closer focusing distance. This can be an excellent too.
Answered by: Dennis A L.
Date published: 2018-08-27

How is an extension tube different from a 2x ...

How is an extension tube different from a 2x converter?
Asked by: Robert
A 2X converter will double your focal length, an extension tube will reduce the minimum focusing distance to your subject.
Answered by: Al
Date published: 2021-10-11

question

does thiswork for EF-S lens to be mounted on full frame body camera ?
Asked by: KAMRAN K.
Yes it will work with an EF-S lens on a Full Frame body. It's recommended for lenses with a focal length of 50mm and higher.
Answered by: James B.
Date published: 2018-08-27

Can I use this with the EOS R and the EF 100mm ...

Can I use this with the EOS R and the EF 100mm 2.8? As the lense is already adapted to the camera.
Asked by: Humaam
I need to qualify my last response. If you place the Extension tube between the EF 100mm and the RF adaptor (that you already have?) it might work. You say "as the lens is already adapted to the camera." Does that mean you already have an RF adaptor? My hesitation is that rear focus is so much closer on a mirrorless camera that adding an extension tube potentially creates a problem. The R series and the EOS with a mirror series are very different.
Answered by: Joel
Date published: 2020-08-25

question

I CURRENTLY HAVE AN EF12, IF I BUY AN EF25 CAN I USE THEM TOGETHER ON MY 100MM MACRO. I HAVE USED THE EF12 BY ITSELF FOR INSECT SHOTSWITH GREAT SUCCESS!
Asked by: Anonymous
Yes, you can stack extension tubes for greater macro capability.
Answered by: Matthew C.
Date published: 2022-03-15
  • y_2025, m_5, d_18, h_5CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.42
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_89
  • loc_en_US, sid_300603, prod, sort_[SortEntry(order=HAS_STAFF_ANSWERS, direction=DESCENDING)]
  • clientName_bhphotovideo
Whatever You Need, We've Got It