Non-Canon RF Tele Extender? Is there one?

[Paul Iddon]

The Canon ones are £550GBP which is scandalous, but I don't think the Kenko 1.4x extenders would work with the RF100-400 - so is there any alternative, or does anyone have a spare one?

Paul.

 

[Chris Summers]

Having a 3rd party lens with an RF mount just means you won't need an EF to RF adapter which is one less piece of gear to have to plan for. I actually own 3 adapters, the Canon basic adapter, the Canon model with the adjustment ring and also a 3rd party one with an interchangeable rear filter (I have a clear and a variable ND). But if I am out with a mix of EF lenses I need to sometimes remove the adapter to use it on a different lens, one more thing to juggle.

As far as a tele extender I tend to use the model designed for the brand lens I am using as the optical formula is usually a bit different on different brands. I own one 1.4 x extender that I only use with my Tamron 150-600mm and it's the Tamron one made for their newer telephoto zoom lenses.

 

[Tappa]

Hey Chris, thanks for the response. I understand the inconvenience, but for the type of photography I do, I keep the 60-600mm sigma on the r5 98% of the time. If I changed lenses frequently, at least for now, I would purchase another adapter or two and leave them attached to the lens for quick changing, but that's just me. I'm a penny pincher from way back.