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Canon EF to Sony E-Mount Speed Booster
Canon EF to Sony E-Mount Speed Booster
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Key Features
- With auto-focusing function
- Can increase the lens 1 f-stop. Increasing the amount of light in the virtual background can better highlight the theme.
- Reduced imaging focal length. the actual focal length after using EF-E for 0.71 times the focal length.
- Let apps-c cameras can take photos as full-frame cameras.

Electronic
- Fast contrast-detection AF on all E-mount cameras (except AF-S/DMF with Sony A9).
- Pure phase-detection autofocus support on A7RII. A7II. A6500. and A6300 (the fastest).
- Powered by the camera body. No external power source is required.
- Supports image stabilization (IS) lenses.
- EXIF support (focal length. aperture. lens name).

This adapter condenses the light from a lens designed for 35mm film or "full-frame" camera sensors and projects it onto a Sony E-mount camera's APS-C sensor. This allows the APS-C sensor to utilize more of the light gathered by a connected lens. which effectively reduces the crop factor while making available to the sensor an additional one stop of light for each of the lens's f/stop settings.



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Let customers speak for us
from 44 reviewsThe adapter is still on route to this side of the world, but the tracking system says its almost here. I am perfectly happy with my other sioti products, so i expect that this will be similarly satisfactory. Good value for money, and highly recommended.

Excellent advise given which saved me having to buy a complete new filter holder, will definitely use again

It came fast and very high quality. So glad to deal with such a great company.
Thank

Excellent product, very sturdy and made with strong material.

SIOTI Step-Up and Step-Down Adapter Ring From 25-30 to 49-67 Rings for Camera lens, Lens filter

Well built and appear to be good quality.

So glad that I could update my SIOTI square filter holder with the proper lens adapter ring. This meant that I could adapt my filter holder to my new camera which had a different lens diameter than my soon to be retired Pentax.

excellent product, excellent service

Well made, simple to use and adjust for my tripods (used for a golf simulator). Even used it to do some time lapse photography which required a solid/steady hold.

Very well machined. I use this to support my Huepar Laser Level and helps with leveling it first. My Laser level is quite hefty and this little Head mount supports it without effort. You barely need to apply pressure to the adjuster to secure it.
As you can see I have it attached to a clamp holding an iPad mini tilted aggressively. There is no way my Giottos mini ball head could do this.
I plan on getting more and using them for full size flashes such as the Nikon SB910 with light modifiers like Mag Mod.
They seem well made. My only concern would be of the anodizing rubbing off and changing the feel and function of the ball head. But otherwise it looks solid.

This one is the best mini ball head I've been able to find.

I like how it feels to use. The hold isn't super strong, I was using it for some binoculars, but for what's it's for, I think the strength is sufficient.
I did have an issue when attaching to a tripod because there was no way to tighten it down, but that could be just as much the tripod as this.

I’ve ordered these in the past and the ball head does not have enough torque applied to prevent movement, this one is great

I loathe throwing anything away that can be repaired. My iPad / tablet holder wasn’t very well made as a whole . Parts of it were though. This little piece was a necessary upgrade . I am impressed with the design and quality.
