I am interested in buying a Canon EF-25 Extension Tube. What are the differences between the EF-25 and EF-25 II except the EF-S lens support? The shop that I am planning to buy from, has the EF-25 more expensive than the EF-25 II? For the same magnification, a quality close up lens like the 500D has have higher resolution and better contrast than extension tubes in many circumstances. For example, the typical 50mm lens design gives better results with a 500D than extension tubes. Zoom lenses, too, generally yield sharper photographs with a close-up optic than extension. Also, using a lot of extension, stacking a lot of tubes, such as might be needed with a longer focal length lens, you have to be a bit cautious about the weight of camera and lens, though the Canon tubes (only sold singly in 12mm and 25mm lengths) and the Kenko (set of three, or individually sold) are pretty sturdy with strong latching mechanisms. Compare Canon Extender EF 2X III vs Canon Extender EF 1.4X III vs Canon Extension Tube EF 25 II Canon Extension Tube EF 25 II . You Pay: $144.95 (456) EF 500mm f/4L IS II USM. Focal Length & Maximum Aperture: 500mm f/4.0. Lens Construction: 16 elements in 12 groups (Including drop-in rear filter, Fluorite: G2 and G4, UD Lens: None) Diagonal Angle of View: 5°. Focus Adjustment: Inner focusing system, with focusing cam. Sharp, fast and lightweight. The lens' large maximum aperture lets photographers shoot with relatively fast shutter speeds, even in low light. This makes the EF 135mm f/2.0L USM an ideal optic for those shooting indoor sports. Despite its high specification, the lens is relatively lightweight and compact, weighing just 750g. RvMKbwe. Extension Tube EF 25 II . Product Highlights. 25mm fully coupled Extension Tube for EOS camera and most lenses to 350mm. One Canon Park, Melville, NY, 11747 Canon Extension Tube EF 25 II . You Pay: $144.95 (456) Add to Cart View Cart. Add to Wish List Item in Wish List . Create new. Show Removed Specs. Shipping . Free 2 I never tried the EF extension tube 25 plus EF-RF adapter, but the math should work. Canon RF 100-500mm F4.5-7.1L IS USM Canon G5 X II Canon EOS 70D Canon EOS 7D Compare Canon Extension Tube EF 12 II vs Vello Auto Extension Tube Set for Canon EF EF-S Mounts and Lenses V2 vs Canon Extension Tube EF 25 II Compare Canon Extension Tube EF 12 II vs Vello Auto Extension Tube Set for Canon EF EF-S Mounts and Lenses V2 For the image above, I added two Canon EF 25 II Extension tubes and a single Canon EF 12 II Extension tube. Whenever you use extension tubes with a long lens be sure to stop down to prevent vignetting. A viable alternative to purchasing several of the more expensive Canon extension tubes is to purchase the Kenko Auto Extension Tube Set DG for

canon extension tube ef 25 vs ef 25 ii