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Related Questions and Answers

Q: 1. Can this be used with the Canon EF-S 10-18 f/4.5-f/5.6 IS STM lens at 10 mm f/4.5 without vignetting?

A: There was no vignetting from my tests using the extension tube, 10-18mm lens and a 90D.

Q: 2. Compatible with Canon SL3?

A: Yes.

Q: 3. Can I attach this and than use ef 1.4x + ef 2x extenders combined, mounted on a ef 300mm 2.8?

A: Unfortunately, Canon EF Extenders and Canon Extension tubes cannot be combined.

Q: 4. this Canon Extension Tube EF 12 work for my sony 6500 to Canon EF-S 10-18mm f/4.5-5.6 IS STM Lens?

A: I doubt it as the lens mounts are different.

Q: 5. Is it compatible with Cinema EOS like C100 Mark II?

A: If they camera lens mount is EF or EF-S Then yes. If it's not. Then you need an adaptor.

Q: 6. What is the difference between the original extension tube and version II?

A: This Canon Extension Tube EF 25 II has updated compatibility for EF-S lenses over the original.

Q: 7. Does anyone know of a cheaper alternative?

A: Unfortunately there is not a cheaper alternative to this Canon AC Adapter AC-E19. Additionally, you will need the second part of it to work properly with a Canon EOS-1D X Mark II DSLR and that second half is the Canon DR-E19 DC Coupler (B&H # CADRE19 MFR # 1172C001). Both of these items complete the entire plug-in system for the Canon EOS-1D X Mark II DSLR camera.

Q: 8. With the canon 50mm macro lens, what is the greatest magnification achievable?

A: I have both the EF 12 II and the EF25II. I tend to be happier with the EF 12 II on my 100mm macro. I think it is a matter of preference for the work at hand. Hope this is of some help. Good Luck, m

Q: 9. If I need to get an extension cord, what is the barrel connector size for these?

A: Sigma does not specify the barrel size used on the Sigma SAC-7 AC Adapter. This is designed only to work with Sigma original couplers.

Q: 10. Anyone used this with a Canon 50mm F/1.2 L (I'm using a 5D mk iii but assume anyone w/ a 1.2L is using a pro body). Results? Presume it preserves the amazing qualities of the 1.2?

A: With the extension tube, the quality of the lens is preserved quite well.