Nikon Lens Extender

[Yes] This is a great product for my Nikon 500mm prime lens. There's enough room for my 500mm lens with extender attached plus camera.

[L-Mount] The lens is well built. I will get the range extender (MC21).

So I'm sure I'm not the only one to use an extender tube like this, and in fact, I did see the one other review below this one, who uses this ET on the same lens... But wow ! Put this ET on my Canon RF 800mm F11, and dropped my min focus distance from 19.5ft, to 14.5, with zero image quality loss. In fact, by being able to get closer to tiny birds and butterflies, it greatly increased the IQ ! I was so stoked with it, I ordered another to try stacking them. Hoping to get my MFD down to about 9 or 10ft Plus, I'm using a 1.4 teleconverter for 1120mm.... Which makes my combo an F16... Shooting in low light... With shutter speeds up to 1/4000th ! Rediculous right ? Impossible to get a good shot ? Well I will post a few here and you can be the judge. These are ISO 12600. Do you see any noise ? Unbelievable

[Hasselblad X] So I'm sure I'm not the only one to use an extender tube like this, and in fact, I did see the one other review below this one, who uses this ET on the same lens... But wow ! Put this ET on my Canon RF 800mm F11, and dropped my min focus distance from 19.5ft, to 14.5, with zero image quality loss. In fact, by being able to get closer to tiny birds and butterflies, it greatly increased the IQ ! I was so stoked with it, I ordered another to try stacking them. Hoping to get my MFD down to about 9 or 10ft Plus, I'm using a 1.4 teleconverter for 1120mm.... Which makes my combo an F16... Shooting in low light... With shutter speeds up to 1/4000th ! Rediculous right ? Impossible to get a good shot ? Well I will post a few here and you can be the judge. These are ISO 12600. Do you see any noise ? Unbelievable

[Black] This device works great when used with the Muxlab Extender. I came right out of the extender into a 10 port gigabit POE switch, and ran 5 monitors up to 200ft from the switch to each decoder. You do need a decoder for each monitor. Since the switch was POE I did not have to use the provided power supply for any decoder

This device works great when used with the Muxlab Extender. I came right out of the extender into a 10 port gigabit POE switch, and ran 5 monitors up to 200ft from the switch to each decoder. You do need a decoder for each monitor. Since the switch was POE I did not have to use the provided power supply for any decoder

[0.055 lb] Excellent lens for my Nikon Z

[4.25 lb] Finally, a cheap KVM extender.

Finally, a cheap KVM extender.

[1/2" Bayonet] The Extender RF 2x does what you'd expect it to do - doubles the focal length of the lens and doubles the minimum f-number. Optical quality is good; when used together with an RF 100-500mm f/4.5-7.1 L IS USM lens, there's only a small loss of sharpness, and some of that may be unavoidable due to diffraction. Autofocus continues to work with the extender, but image stabilization can become unreliable.