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Kenko Auto Extension Tube Set DG 12mm, 20mm, and 36mm Tubes for Nikon AF Digital and Film Cameras - AEXRUBEDGC by Kenko
Digital Photo Product DetailsManufacturer: Kenko Model: KE EXTNDG Product features: - Designed to enable a lens to focus closer than its normal set
- Very Useful for Macro Photography
- The Extension Tubes have no optics
- Focus Closer to the objects you see and enjoy the feel of photography
- Auto Extension Tube Set for the Nikon AF Mount
Accessories:
Digital Cameras Photo Reviews of Kenko Auto Extension Tube Set DG 12mm, 20mm, and 36mm Tubes for Nikon AF Digital and Film Cameras - AEXRUBEDGCCustomer Review: Fun for Amateurs, Okay for Professionals Summary: 4 Stars
These Kenko extension tubes are fun for amateurs and great for specific professional uses.
Build Quality:
Feels like a quality product right out of the box. The mounts are metal which gives me confidence using all three tubes between my lenses and the camera. The tubes are plastic, but sufficient quality for average use and abuse. Connecting the tubes to a lens; however, is a little disconcerting because you can feel the bearings of the lens catch on the electronic contacts of the tube that pass the signal on to the camera. It's clear now that no damage is being done, but I still connect lenses slowly to avoid any problems. Lens weight becomes an issue when trying to attach a 70-300mm VR lens, especially when using all three extensions between the lens and camera body. Sagging of the lens and slight separation between the metal mounts of each tube is noticeable. I would feel safer if Kenko offered a 'lens collar' solution for such conditions to prevent the camera body taking all the weight. However, for my macro and small zoom lenses, I have no worries while I'm shooting.
Quirks:
Experimenting with extension tubes is a lot of fun, but you could experience instant buyer's remorse if you don't have the right lens. Extension tubes allow you to focus on objects that are otherwise too close for the lens to focus on. This is great when using a 70-300mm lens for macro photography, but zoomed in with my 18-70mm DX lens with all extensions attached I was able to focus on the dust resting on the front glass element of the lens itself! Amusing, but the working distance was too shallow to be useful. (My favorite combo is using my 60mm micro lens with all 3 tubes) Auto-focus comes and goes and depends on how many tubes you have stacked as well as available light. I use auto-focus when it works, but more often than not I'm going manual. Tripods are a must for sharp photos and I recommend using a remote or at least a timed shutter release to reduce camera shake. Be aware that there is a learning curve for this product, but for me it was fun and exciting!
Image Quality:
Yes, image quality is affected. This has more to do with the quality of the lens you are using rather than the tubes themselves. Chromatic aberration present in your lens becomes magnified. Also edge sharpness may be reduced by sagging lenses. Amateurs will be less concerned with this, but it could be a deal breaker for professional photographers. As for myself, I shoot stock photos and chromatic aberration is unacceptable. However, I have had outstanding results using these tubes with a 60mm micro lens and off-camera flash.
Final Thoughts:
Again, the Kenko extension tubes are a good value for an amateur photographer looking to shoot macro photos on a budget. Professionals may also find this product to be useful, but for very specific shooting situations. (I urge you to carefully consider your decision to purchase these tubes if you intend to use them specifically with a telephoto lens. A bellows might be a better idea, especially if you need greater magnification than these tubes will offer.) All in all, I found these extension tubes to be a valuable addition to my camera bag and I would recommend them to amateurs and pros alike, so long as they understand the product's limitations.
Description of Kenko Auto Extension Tube Set DG 12mm, 20mm, and 36mm Tubes for Nikon AF Digital and Film Cameras - AEXRUBEDGCExtension tubes are designed to enable a lens to focus closer than its normal set minimum focusing distance. Getting closer has the effect of magnifying your subject (making it appear larger in the viewfinder and in your pictures). They are exceptionally useful for macro photography, enabling you to convert almost any lens into a macro lens at a fraction of the cost while maintaining its original optical quality. The extension tubes have no optics. They are mounted in between the camera body and lens to create more distance between the lens and film plane. By moving the lens father away from the film or CCD sensor in the camera, the lens is forced to focus much closer than normal. The greater the length of the extension tube, the closer the lens can focus. The KENKO AUTO EXTENSION TUBE SET contains three tubes of different length, a 12 mm, 20 mm, and 36 mm, which can be used individually or in any combination to obtain the desired magnification. Kenko also makes a UNITUBE 12 mm or 25 mm which can be purchased individually. Kenko's Auto Focus extension tubes are designed with all the circuitry and mechanical coupling to maintain auto focus and TTL auto exposure with most Nikon lenses given there is enough light to activate the cameras AF system properly. Please Note; 1. When using extension tubes the lens will not focus to infinity. The focus range will be greatly limited to a very close focusing distance. 2. There is light fall of
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