Product Description

On most lenses,that manufacturers provides a focusing mechanism that extends only a few millimetres, partly to keep down cost and also to restrict the lens to extensions for which its optics are optimised. To provide additional extension,you can add one or more extension tubes between the camera and the lens, to make the lens focus at closer distances and it can produce higher magnification. When using the extension ring with a Canon body, the camera should be set in the M mode.The macro extension tubes is fit for the Canon EOS cameras including 1D,1Ds,5D,10D, 20D,30D,40D,300D, 350D,400D, 450D, or any canon SLR Use this set,it will not downgrade the optical quality of your lens. Sharpness and Saturation can be still maintained. But they are not meter-coupled. They do not preserve the automatic diaphragm. It should be used with manual lenses with their own aperture dial. There is no electronic connection between the body and the lens. Automatic lenses can be used with their widest open aperture only. Package Includes: One macro tube set.

Product Details

• Amazon Sales Rank: #1257 in Consumer Electronics
• Colour: black
• Brand: BV & Jo
• Dimensions: .44 pounds

Features

• This Macro Extension Tube Set for Canon EOS film & Digital SLR,
• it includes 3 extension tubes - 9mm, 16mm, 30mm adapters and a male & female adapter.
• You can mount the tubes between lens and camera body to get your choice of macro ranges.
• Totally it is 8 combinations. They fit directly to the body of the camera without the other adapter.
• just place it on the body of the camera as the lens and put the lens on tube.

Customer Reviews

Sceptical no more!
I must admit that I bought these very much on a 'at this price I'm prepared to take a chance' approach. The optical principle is sound - you push the lens away from the camera and it allows you to focus a lot closer.

I was highly dubious about what the actual result would be. Astonishingly enough, I needn't have been! It does exactly what it says on the tin, and using my bog-standard 18-55 Canon lens I've focussed about 20-30mm away from the face of the lens.

You lose the autofocus and some of the other automatic bells and whistles, but it's not really an issue with such close work. Just whack it into Av mode and you're away.

Couple of caveats, but it's nothing to do with this product - just macro stuff in general. You're working very close and dealing with not a lot of light - you really need to use a tripod. Also you're dealing with the world's shallowest depth of field - it has to be seen to be believed!

So yes, these things really do work and if you don't want to shell out on a 'proper' macro lens then this is a perfectly viable alternative for infrequent use. A worthy addition to anyone's kit bag.

Extension tubes depth of field
You can get a better depth of field with these tubes if you set the desired aperture on the lens before removing it from the camera and fitting the tubes. Press the DOF preview button on the camera and hold the button in whilst removing the lens from the camera. The aperture of the lens will be locked and will remain at that setting whilst shooting through the tubes.

It's cheap and it works!
Great product - allows you to shoot much much closer! Of course you lose autofocus, IS and aperture control (although depth of field button trick fixes this last problem - see other reviews), but for a tenner (and that's with delivery) it does a great job.
If you want a serious tool for macro photography, then this is probably not a product for you - using it all the time could get a little tedious, but for an occasional shoot it works just fine. To get a decent DOF you'd have to stop the lens A LOT, so the exposure time goes up hence a tripod /some sort of stabilising device eg. desk, floor ;)/ is pretty much a necessity. Also if you don't use one, focusing will get tricky/impossible.
If you're not sure macro photography is for you, but want to try without spending a lot on a macro lense - buy this! You won't regret it!