Rosco Fluorescent Lighting Sleeves/Tube Guards are a very reliable and cost-effective system for easy control of tough lighting scenarios- especially under fluorescents. In addition to the financial benefits of the sleeves, they protect against the potential disaster of glass shattering by containing the lamp within the end caps.

Rosco sleeves are constructed of a solid polycarbonate tube within which is held the specific filter. The choice of filters and combination of filters is endless - there are complete Roscolux, Cinegel or E-Colour color filter lines - something for every venue, every photographer, every cinematographer.

For T5 Lamps    Over 300 Colors Available    UL94HB Rated Polycarbonate    End Caps Protect From Shattered Glass    Easily Trimmed with Scissors

Available in sizes for T12, T8 and T5 fluorescent lamps

The T8 and T5 sizes contain a UV filter that minimizes fading

All standard sizes (2, 4, 5, and 8') are easily trimmed to accommodate any size lamp

Related Questions and Answers

Q: 1. Will this work with he tamron 150-600 for Sony amount?

A: While this extension tube set can work with any Sony A mount lens, it has not been tested with the Tamron 150-600mm lens to confirm that it is compatible. Your results may vary.

Q: 2. I have a 50mm 1.4F prime as well as the EF-S 15-85 IS. Will I be able to use them with both lenses? Will this enable me to take only Macro photos or help close in on objects at a distance too (like a tele converter)? Thanks in advance for your help.

A: Extension tubes are for macro photography and do not act in the same way as a teleconverter. The Kenko Auto Extension Tube Set DG for Canon EOS Lenses will work with the 50mm f/1.4 and 15-85mm lenses.

Q: 3. Did this tube control aperture in the lens

A: With these tubes you will be able to control the aperture of the lenses on the control dials of your camera the way you normally do.

Q: 4. I purchased these from you already but have not used them yet. I am using both a Canon 7D and a Canon 1DX with the Canon EF 100mm f/2.8L Macro IS USM Lens. How can I use these so that autofocus function is retained? Thank you.

A: The first thing to understand about macro photography, is using AF (when possible) is a convenience that will become more of a hindrance in the long run. The benefit of extension tubes, and also just a macro lens such as the Canon 100mm goes is that they allow for much closer focusing than with other common lenses. They get so close that the AF sensors in most cases are not able to decide on what the focus point is, and end up causing the camera's focusing sensors to hunt back and forth never coming into focus. The majority of macro photographers out there end up shooting in manual focus mode, and the better approach is to physically move the camera closer and further from the subject in small increments and manually tune the focusing till you get what you want.To answer your question directly, the Canon 100mm f2.8 L IS USM Macro lens has a minimum focusing distance of 1 foot (distance from sensor plane to the subject). Using the tubes will decrease this distance. Youll ultimately have to experiment with each tube and the lens to see what the tolerance of autofocusability will be.

Q: 5. will these work with lenses wider than 50mm?

A: Absolutely! I use them with my 18-55 zoom, and my 11-16 zoom, and my 35 mm prime.

Q: 6. WILL THESE EXTENSION TUBES WORK WITH A NIKON D500?

A: The work flawlessly with my D810. I don't have a D500, but I do not think you would have a problem.

Q: 7. What ratio do the individual tubes give with a standard 50 lens.. As in 1:2, 1:1, etc??

A: All figures are based on a reading at 0.5 meters:12mm = 0.3520mm = 0.5136mm = 0.83Contact me through a href= http://Kenkotokinausa.com target= _blank Kenkotokinausa.com/a and I can supply you with a complete instruction sheet that will answer all of your questions.

Q: 8. Does auto focus work with both ef-s and ef lenses, or ef lenses only?

A: It works with both ef-s and ef lenses

Q: 9. Do they affect the image the same way as cropping the image in post processing? My macro lens has a minimal focal length 250mm, if I put on 7 of the 36mm tubes will it reduce my minimal focal length to 0?

A: No, extension tubes will maintain the resolution, unlike when you crop an image in post processing. 3 tubes will bring you to about 25mm close focus distance

Q: 10. will a MK III with a 100 mm Macro lose anything off of its full frame capability? and how many f stops will you lose when using all 3 stacked?

A: The extension tubes do not affect the full frame aspect of the camera nor will you lose any f stops. However, the depth of field will start to decrease dramatically as you stack the extension tubes together. You may have to shoot with a tripod or a ring flash of some type if using all three to prevent blur unless you have a very, very steady hand.