What do extender tubes do




















Extension tubes can be used with almost any camera mount. You might not have any problem using extension tubes and an adaptor at the same time, but it does increase potential points of failure. Because you will likely be using an extension tube with a smaller aperture, you may want to pair it with a camera that have better low light performance. If your camera struggles at higher ISOs, you might struggle to properly expose your images.

Because the entire point of using an extension tube is to increase magnification, you can benefit from using a camera with an APS-C sensor that will give you a native crop and additional magnification. While any camera can pair very well with an extension tube, crop sensor cameras with very good low light performance will work best.

The Nikon D , for example, is a great choice if you want great magnification. Extension tubes can be an easy way to add macro capabilities to non-macro lenses or even to increase the amount of magnification that you get from your dedicated macro lenses. Because of the simple nature of an extension tube, there is little performance difference between different brands and models.

Pairing an extension tube with the right lens can open up many possibilities for your photography. Your email address will not be published. Notify me of follow-up comments by email. Notify me of new posts by email. Our mission at BorrowLenses is to advance photographic and cinematic dreams by providing access to superior, cutting-edge gear and expert advice.

Ready to get to work? Order from your desk, have gear delivered to your door, and take on your next project. What is an Extension Tube? How Extension Tubes Work Lenses focus light a specific distance to the sensor behind it. How to Use an Extension Tube Using an extension tube is as simple as connecting the extension tube in between the camera body and lens. Pros and Cons to Using an Extension Tube An advantage to using extension tubes is that they can be very inexpensive.

Types of Extension Tubes Because of how simple extension tubes are, you can find incredibly inexpensive ones. Choosing an Extension Tube Extension tubes can be used with almost any camera mount.

Browse the largest online selection of photo and video gear rentals and have them delivered right to your door! Our blog is where you can learn about fellow image makers, discover new arrivals, and keep up on sales and other events. Leave a Reply Cancel reply Your email address will not be published. A good telephoto lens can help you take your photograph Not that the extension tubes are heavy.

Depending on the weight of your lens it can put the overall balance out of whack. Next turn off all automatic settings on your actual lens AF to off and connect the tubes. Then look through your viewfinder and press your shutter button half way down. Move in closer towards your subject until focus is clear then take the shot. Skip to primary navigation Skip to main content. Privacy Policy. A close-up filter works by decreasing the effective focal length of whatever lens they're used on.

This decrease in focal length means that the extension has to increase correspondingly — which ends up magnifying the image similar to if one were to have used an extension tube:.

A close-up filter is usually specified in terms of "diopters," which is a measure of their magnifying power. Higher numbers yield more relative magnification on a given lens, but image quality also tends to decrease correspondingly.

Note how close-up filters increase magnification much more when used with longer focal length lenses. Conversely, a given close-up lens might be too powerful and decrease image quality too much when used on a mm telephoto lens, but might be just right on an 80 mm lens.

As with extension tubes, it's important to weigh the unique pros and cons of adding a close-up lens to gain magnification:. While extension tubes and close-up lenses are the two most common ways to increase magnification, other options exist. Popular alternatives include the following:. Even though these are typically used to increase a lens's focal length, they're also a popular way to increase magnification. The teleconverter multiplier directly correlates with the increase in magnification; a 2X teleconverter therefore doubles the maximum magnification.

Disadvantages include i a loss in image quality and ii an increase in the len's minimum f-stop max aperture , which may prevent a camera from being able to autofocus. These are basically adjustable length extension tubes. Reversing Rings. These allow your lens to be mounted in the reverse direction. They attach to your camera where you would normally mount the lens; your lens's front filter mount then screws onto the reversing ring, causing the inner and normally hidden part of your lens to face outward.

Shorter focal length lenses will allow for closer focusing distances and higher magnification. The main disadvantage of reverse rings is that they result in an extremely narrow range of distances which can be in focus. Other complications potentially include the loss of aperture control and autofocus. You can enhance the size of a subject in a print by simply cropping the image.



0コメント

  • 1000 / 1000