Meike MK-RF-AF1 13mm + 18mm Metal AF Full Frame Macro Extension Tube Adapter Ring Kit For Canon EOS-R Series Cameras Canon RF Mount Cameras EOS-R EOS-RP

Initial impression is good. Tested and they work fine.There is a small amount of rotational movement if you try and twist the lens when one or both extension tubes are attached, but not enough to cause connection problems.The tubes are metal and plastic construction. I wouldn't be too comfortable hanging a heavy lens off them, but most lenses should be OK.The weather seal was a nice surprise. But I don't think there is a seal at the lens release button.

Quality is OK. Not as good as genuine Canon product but it’s a fraction of the price. They work as extension tubes should and reduce the minimum focus distance of any lens - but the effect is much more on shorter focal length.

Was built well .. it looked good on my Canon R50 but unfortunately it did not work. Returned the item

Makro imaging is very good. Much cheaper than a fancy lens which you'll probably regret buying anyway.

I'm using it in my Canon R6 with 28-70 and 70-200. It works well. It loose sharpness in the corners but the pictures are very decent. And you can use it only for macro photography. And I'm very happy with this because I never had a macro lens before so this open to me a new world of images.

Works perfectly with my Canon R5 and RF100mm macro lens.

These were supposed to allow autofocus but didn't work at all. No contact with the lens, so aperture also couldn't be set. I may have been unlucky and got a duff set, although quality control should have caught that before it left the factory.

I've had a few different extension tubes and I tend to find the cheaper ones don't have a tight enough fit on the mount to prevent them losing the AF connection to the camera. Once the connection is broken the camera freezes and has to be turned off and on again.For the price they are okay, but I'll be saving up for a better set of tubes.