DG-C Auto-Focus Macro Lens Extension Tube Set (12mm, 20mm, 36mm Length) for Canon EF/EF-S Mount Lenses n DSLR Camera 5D2 5D3 5D4 6D 7D 70D 80D 700D 760D 1300D T7 T6i T5i Recommendations Movo Photo AF Macro Extension Tube Set for Canon EOS-M, M2, M3, M10 Mirrorless Camera System with 10mm, 16mm & 21mm Tubes (Metal Mount) 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 We found that most customers choose canon ef extension tubes with an average price of $44.00. The canon ef extension tubes are available for purchase. We have researched hundreds of brands and picked the top brands of canon ef extension tubes, including Fotodiox, VILTROX, JJC, foto4easy, Runshuangyu. The seller of top 1 product has received The Canon tube, more like a thick ring actually (The Canon EF 25 II Extension Tube for EOS Digital Cameras is a bit more tube-like.) is of a single fixed 12mm length and supports complete connectivity between camera and lens so that exposure and focusing are done as seamlessly with the EF 12 as without. This is a huge benefit if what you are In reply to forestdweller • Aug 11, 2009. I also have the 300mm f4 Non IS and prefer it to the IS version. I think it is a stellar lens. Following is from the back of the Canon EF Lens Work II book. Standard min focusing distance = 2.5M/8.2Ft. With Ext. Tube EF12 = 0.18~0.04X. With Ext. Tube EF25 = 0.24~0.09X. Auto Focusing Macro Extension Lens Adapter Tube Rings Set,Auto Focus Macro Extension Tube Lens Adapter Rings Set,7 Combinations Camera Lens Ring,for Cameras with EF Mount (13mm/21mm/31mm) 10. $2670. Save 3% at checkout. FREE delivery Tue, Oct 24 on your first order. Or fastest delivery Tomorrow, Oct 21. 本集主角 Gary 年紀輕輕就創立道路研究社，旨在研究香港街道多年來的改變及特色。. 例如由殖民地年代一直保留至今的英式標準、為迎合本土特色而改良的路牌及交通設施等。. 相關型號：. EOS 90D. 更多拍攝靈感. Extension Tube EF 25 II, 就在佳能 (香港)官方網上商店 Magnification with a 25mm extension tube mounted behind a 70-200mm f/2.8L IS II will range from 0.36x at 70mm to 0.14x at 200mm (extension tubes change the maximum magnification based on the ratio of the tube length to the focal length, so the longer the lens, the less effective the extension tube). Close up accessory which maintains full electronic coupling between the camera body and lens, often providing greater magnification than is possible with close-up lenses. Can be used with most EF lenses; ideal for nature photography with single focal length telephotos. Manual focusing is recommended. Magnification for standard zoom lenses is Macro Lens Tube Extension for Canon DSLR, Micnova KK-C68 Pro Auto Focus Macro Extension Tube Set for Canon EOS EF & EF-S Mount 5D2 5D3 6D 650D 750D Film Cameras (12mm 20mm and 36mm Tubes) dummy 58mm Macro Lens Reverse Ring Adapter for Canon EOS Rebel T6 T7 T5 SL3 SL2 T8i T7i T6i T6s T5i 2000D 4000D 90D 80D 70D with EF-S 18-55mm Kit Lens & More yWs0f.