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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 19 Dec 2013 (Thursday) 12:20
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Kenko DG Extension Tube Question for 100mm 2.8 USM Macro

 
marklori43
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Dec 19, 2013 12:20 |  #1

I can't afford the whole set. Which would you recommend as the most used for macro (bugs) with the 100mm 2.8 USM Macro?

Thanks


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Canon 7D, Canon 5D Mark III, Canon 100-400mm 4.5-5.6 L IS USM, Canon EF 100mm 2.8 USM Macro, Canon EF-S 18-55mm, Canon EF 28mm 1.8 USM, Canon EF 28-135mm f/3.5-5.6 IS USM, Kenko DG Extension Tubes, Manfrotto 055XPROB with 498RC2

  
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amfoto1
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Dec 19, 2013 13:10 |  #2

You might not have any choice but to buy the set, if looking at the Kenkos. They used to sell individual 12mm and 25mm (same as Canon themselves). But I don't see those offered anywhere any more. Only the set with 12mm, 20mm and 36mm.

If the price of the Kenko set (about $200 US new) is too much, maybe you should look for used for a bit less. You can use the older type (marked CA/AF) on your 100mm or any other EF lens... just won't work on EF-S lenses. Those have been superceded by the CA/AFs version for some years now, which can be used with both EF and EF-S lenses, so you might even find a used set of the newer version, for a bit of a discount.

Alternatives are the Opteka set (also 12mm, 20mm, 36mm) for around $75 US...

Or the Zeikos set (13mm, 21mm, 31mm) for about the same price. This set sells under a lot of different brand names: Bower, Vivitar, ProOptic, Vello and many more. There are two versions, the one that's about the same price as the Opteka has metal bayonet mounts. There is an even cheaper one with plastic bayonets, which personally I'd be very reluctant to use with any moderately heavy lens/camera.

AFAIK, the only tubes currently and widely available individually are the Canon, which sell in 12mm and 25mm lengths. Older ones are EF lens compatible only. The current "Mark II" are EF and EF-S lens compatible. New the 25mm sells for about $140 and the 12mm for about $84.

Both the Opteka and Zeikos use plastic barrels. The Ziekos has a protruding release button that worries me a little. The Opteka, Kenko and Canon all have more recessed release buttons that I personally find a little more reassuring that they won't be accidentally released.

The Kenko and Canon have metal barrels and bayonet mounts. They are virtually identical in build (the Canon seem to have a little better internal finishing, neater light baffles over the contacts).

To have significant effect on a 100mm lens, you will need a longer extension tube. I'd try 20mm or 25mm at a minimum. 12 or 13mm won't do very much. To get to 2:1 I think you would need to stack tubes.

EDIT: Hey! I just discovererd that B&H Photo is selling individual Fotodiox tubes in their 13mm, 21mm and 31mm lengths... for $25 each. Those are rebranded versions of the Zeikos (etc.), just being sold individually. The whole set of Fotodiox branded tubes sells for $60.

Finally, I have also recently seen advertised a macro helicoid for Canon (and a few other mounts). A helicoid is essentially a variable extension tube. The tube is adjustable from around 40mm to 60mm of extension. I've seen some advertised as a "Macro Zoomer" and would wager that Zeikos is making them, they are probably mostly plastic, but might be useful if not giving too much extension. I have used macro helicoids in other systems in years (decades!) passed, but not on my modern Canon and not this one in particular yet. I seem to recall, it sells for around $100 US. If you can find one (Adorama had a ProOptic branded version, but apparently no longer offers it).

I also tracked down Kenko UNIPLUS macro 12mm and 25mm extension tubes selling individually on Amazon.com. Some new, some used. Some appear competitively priced, but others seem to be more expensive than the individual Canon tubes. According to the Kenko Tokina Hoya USA website, only the 25mm is still being offered by them and it is not EF-S lens compatible.


Alan Myers (external link) "Walk softly and carry a big lens."
5DII, 7DII(x2), 7D(x2) & other cameras. 10-22mm, Tokina 12-24/4, 20/2.8, TS 24/3.5L, 24-70/2.8L, 28/1.8, 28-135 IS (x2), TS 45/2.8, 50/1.4, Tamron 60/2.0, 70-200/4L IS, 70-200/2.8 IS, 85/1.8, Tamron 90/2.5 Macro, 100/2.8 USM, 100-400L II, 135/2L, 180/3.5L, 300/4L IS (x2), 300/2.8L IS, 500/4L IS, EF 1.4X II, EF 2X II. Flashes, studio strobes & various access. - FLICKR (external link) - ZENFOLIO (external link)

  
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johnf3f
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Dec 19, 2013 18:10 |  #3

These work well:
http://www.ebay.com …Tubes&hash=item​5d3c3a3964 (external link)
I have a set (under a different brand name) that are exactly the same and can see no reason to change them 4 years on. They allow the use of EF and EFS lenses as well as automatic aperture and focus.
I mainly use mine to reduce the minimum focus distance on Supertele lenses.


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amfoto1
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Dec 19, 2013 19:15 |  #4

johnf3f wrote in post #16540921 (external link)
These work well:
http://www.ebay.com …Tubes&hash=item​5d3c3a3964 (external link)
I have a set (under a different brand name) that are exactly the same and can see no reason to change them 4 years on. They allow the use of EF and EFS lenses as well as automatic aperture and focus.
I mainly use mine to reduce the minimum focus distance on Supertele lenses.

Those are the Zeikos with the plastic bayonet mounts...

I do hope and pray you are kidding about using those with super tele lenses! I wouldn't trust them with anything much heavier or more valuable than a 50/1.8, 18-55 or perhaps 55-250 .


Alan Myers (external link) "Walk softly and carry a big lens."
5DII, 7DII(x2), 7D(x2) & other cameras. 10-22mm, Tokina 12-24/4, 20/2.8, TS 24/3.5L, 24-70/2.8L, 28/1.8, 28-135 IS (x2), TS 45/2.8, 50/1.4, Tamron 60/2.0, 70-200/4L IS, 70-200/2.8 IS, 85/1.8, Tamron 90/2.5 Macro, 100/2.8 USM, 100-400L II, 135/2L, 180/3.5L, 300/4L IS (x2), 300/2.8L IS, 500/4L IS, EF 1.4X II, EF 2X II. Flashes, studio strobes & various access. - FLICKR (external link) - ZENFOLIO (external link)

  
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trewyn15
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Dec 19, 2013 19:38 |  #5

Those are the ones I'm using with my 100mm Macro. I don't expect any issues.

No real issue in going with cheaper extension tubes as they have no optics, just have to worry about the build quality and AF connecting pieces.


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Sibil
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Dec 19, 2013 20:35 |  #6

amfoto1 wrote in post #16540168 (external link)
You might not have any choice but to buy the set, if looking at the Kenkos. They used to sell individual 12mm and 25mm (same as Canon themselves). But I don't see those offered anywhere any more. Only the set with 12mm, 20mm and 36mm.

If the price of the Kenko set (about $200 US new) is too much, maybe you should look for used for a bit less. You can use the older type (marked CA/AF) on your 100mm or any other EF lens... just won't work on EF-S lenses. Those have been superceded by the CA/AFs version for some years now, which can be used with both EF and EF-S lenses, so you might even find a used set of the newer version, for a bit of a discount.

Alternatives are the Opteka set (also 12mm, 20mm, 36mm) for around $75 US...

Or the Zeikos set (13mm, 21mm, 31mm) for about the same price. This set sells under a lot of different brand names: Bower, Vivitar, ProOptic, Vello and many more. There are two versions, the one that's about the same price as the Opteka has metal bayonet mounts. There is an even cheaper one with plastic bayonets, which personally I'd be very reluctant to use with any moderately heavy lens/camera.

AFAIK, the only tubes currently and widely available individually are the Canon, which sell in 12mm and 25mm lengths. Older ones are EF lens compatible only. The current "Mark II" are EF and EF-S lens compatible. New the 25mm sells for about $140 and the 12mm for about $84.

Both the Opteka and Zeikos use plastic barrels. The Ziekos has a protruding release button that worries me a little. The Opteka, Kenko and Canon all have more recessed release buttons that I personally find a little more reassuring that they won't be accidentally released.

The Kenko and Canon have metal barrels and bayonet mounts. They are virtually identical in build (the Canon seem to have a little better internal finishing, neater light baffles over the contacts).

To have significant effect on a 100mm lens, you will need a longer extension tube. I'd try 20mm or 25mm at a minimum. 12 or 13mm won't do very much. To get to 2:1 I think you would need to stack tubes.

Impressive !




  
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jbrackjr
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Dec 19, 2013 22:07 |  #7

I am also looking for a set of tubes for EF-S lens. Looking on Ebay, I have found these which show metal mounts. Anyone have any idea if these would be ok?

http://www.ebay.com …Tubes&hash=item​4acb4df6f1 (external link)


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Canajun
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Dec 19, 2013 22:33 as a reply to  @ jbrackjr's post |  #8

I'm not sure if my comments will be helpful or not but here goes. I have the Kenko set. And even tho they are made of metal. When I stack two of them coupled with my lens. They do have a certain play in them. In the back of my mind, I keep thinking that they may fall apart on me. I do love it and no remorse buying it.


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smallpotatoes
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Dec 19, 2013 22:42 |  #9

I know you're asking about tubes, but I couldn't be happier with my Raynox. While I only briefly tried tubes, I feel like the Raynox is so much easier to use. Especially if you're wanting to quickly switch between macro & non macro shooting. And while my gear can't compare to yours, I haven't seen any loss in IQ with the Raynox.


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trewyn15
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Dec 19, 2013 22:49 |  #10

Cheap? Sure. Metal mounts, yes.

Here's the ones that I actually may be getting for christmas:

http://www.amazon.com …ords=canon+exte​nsion+tube (external link)


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DreDaze
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Dec 20, 2013 01:16 |  #11

well the longer extension tubes will allow you to get closer...so how close are you looking to get? have you tried using your teleconverter on your 100mm to gain more magnification?


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paddler4
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Dec 20, 2013 08:03 |  #12

well the longer extension tubes will allow you to get closer...so how close are you looking to get? have you tried using your teleconverter on your 100mm to gain more magnification?

The Canon teleconverters don't work with the 100L. Don't know if they work with the 100 non-L. However, you can stick a short extension tube between the two. I sometimes stack the 100L, the 12mm kenko, and a 1.4 II converter, in that order.

I have the Kenko set. And even tho they are made of metal. When I stack two of them coupled with my lens. They do have a certain play in them. In the back of my mind, I keep thinking that they may fall apart on me.

I often stack two of them, and sometimes all three, and have never had a problem. Personally, I would not want to trust my lens to a set of cheap plastic tubes.


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johnf3f
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Dec 20, 2013 18:59 |  #13

amfoto1 wrote in post #16541062 (external link)
Those are the Zeikos with the plastic bayonet mounts...

I do hope and pray you are kidding about using those with super tele lenses! I wouldn't trust them with anything much heavier or more valuable than a 50/1.8, 18-55 or perhaps 55-250 .

Mine have metal mounts, as these appear to have. They are anodised black alloy. Plastic mounts are normally molded as part of the tube rather than screwed on.
Incidentally, from my limited experience of plastic mounts, they are made to VERY much finer tolerances than the rather sloppy mounts on my Canon Cameras/lenses. I can put any of my lenses on my EOS IX7 with zero slop - pity I can't say the same for my 5D, 1D4 or 1Dx.
I agree plastic mounts are weaker but they only have to support the camera when using long lenses. I certainly don't lift my 300/800mm lenses by the camera!


Life is for living, cameras are to capture it (one day I will learn how!).

  
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johnf3f
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Dec 20, 2013 19:03 |  #14

trewyn15 wrote in post #16541496 (external link)
Cheap? Sure. Metal mounts, yes.

Here's the ones that I actually may be getting for christmas:

http://www.amazon.com …ords=canon+exte​nsion+tube (external link)

Same as mine but my mounts are anodised black. They work well.


Life is for living, cameras are to capture it (one day I will learn how!).

  
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amfoto1
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Dec 20, 2013 21:27 |  #15

trewyn15 wrote in post #16541496 (external link)
Cheap? Sure. Metal mounts, yes.

Here's the ones that I actually may be getting for christmas:

http://www.amazon.com …ords=canon+exte​nsion+tube (external link)

Those are the Zeikos, rebranded under yet another name.


Alan Myers (external link) "Walk softly and carry a big lens."
5DII, 7DII(x2), 7D(x2) & other cameras. 10-22mm, Tokina 12-24/4, 20/2.8, TS 24/3.5L, 24-70/2.8L, 28/1.8, 28-135 IS (x2), TS 45/2.8, 50/1.4, Tamron 60/2.0, 70-200/4L IS, 70-200/2.8 IS, 85/1.8, Tamron 90/2.5 Macro, 100/2.8 USM, 100-400L II, 135/2L, 180/3.5L, 300/4L IS (x2), 300/2.8L IS, 500/4L IS, EF 1.4X II, EF 2X II. Flashes, studio strobes & various access. - FLICKR (external link) - ZENFOLIO (external link)

  
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Kenko DG Extension Tube Question for 100mm 2.8 USM Macro
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