canon slr

Canon SLR Extension Tubes

One of the normally underexposed (pardon the joke) sorts of DSLR picture taking is macro photographs. Regularly the trigger is the lack of access to pricey, restricted functionality macro equipment for acquiring ultra close ups of possible shots. However, with the obtain of a Canon extension tube to your sack of gear, lots of of your existing lenses are able to be transformed to have macro functionality at a price of under 100 dollars.

For those not familiar with extension tubes, they are basically pieces of metal or plastic that attach in in between the lens and DSLR itself. They can be purchased roughly in 10mm, 20mm and 30 sizes and serve to enhance the focal distance of the already employed lens. This serves dual purposes. The very first is enlargement. If you own a lens with a focal length of 50mm and add a 25 tube, it can now work as a 75 lens, thus a 1.5 times larger enlargement than the original 50. The second consequence from adding a Canon extension tube is lessened minimum focusing distance. Whilst the calculations resulting in this is far more difficult, I've identified that for a 50 lens with a minimum focus distance of 300mm, this can with out difficulty be lowered to 100 or lower with a macro extension tube, letting you to get exceptionally close with your potential shots for pictures not ever formerly imagined probable.

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One important piece of details on the subject of extension tube equipment is no matter whether you can get electrical contacts in the extension tubes to keep connectivity among the lens and SLR body. If you've got them, you will have the choice to keep autofocus and aperture manage as if the tubes weren't attached. Lacking this electrical get in touch with, you will only have the ability to focus manually and will need to adjust f-stop before attaching the macro extension tubes, and this may possibly be a huge hassle and very annoying.

An extra handy tidbit of info is the manufacturer of macro extension tube purchased in reality makes no distinction, which can be a surprise to numerous. A namebrand Canon extension tube at 12 or 25mm will likely expense upwards of for just one. Nevertheless, so called no name brands like Opteka or Zeikos really should get you a trio of extension tubes that work equally nicely for around 70 dollars, a significantly much better use of dollars. And if the omission of electric connectivity does not trouble you, vanilla plastic macro extension tubes can be bought for just over . I very much urge saving your dough and getting the Opteka brand, I've been taking photos with them for quite awhile with outstanding success.

There can be a a little amount of shortcomings you require to be informed of versus getting an actual macro lens (which could come at a price of in and about ). The very first is the extension tubes have a quite narrow depth of field due to the bigger magnification. As a result the f-stop as a rule requirements to be put significantly bigger, which lets in much less light and can trigger problems without the appropriate lighting conditions and somewhat lessen contrast or sharpness. Secondly, not only do macro extension tubes lessen the minimum focusing length, they remove the capability to concentrate beyond that to infinity. It is not out of the question that you can just focus in a length of 100 to 200 mm, so you will want to get really near to the topic, excluding the shooting of mobile objects (or those that bite) like insects or pets.

To sum it all up, for folks in the marketplace to expand in the realm of SLR photography, I highly urge investigating a collection of macro extension tubes to seriously increase the range of pics you can capture.