Extenders RF 100-400 with 1.4 extender

[arma22]

I bought the RF 100-400 F5.6-8 recently which i use on my R6M2. I am thinking about getting a RF 1.4 extender. I read on a few sites and Facebook groups that some people are having troubles using the 100-400 with the 1.4 extender. Some people even said it didn't work at all. Are there people who use this combination? And works it perfectly for you or are you also having some problems with it?

 

[Dave Williams]

I can't comment on the RF100-400 f5.6-8 as a lens as I have never seen one but it seems an extravagant extra to spend nearly as much on the 1.4 TC as the lens costs and I would indeed be questioning performance as you have done. If I were you I'd rather spend a bit more and buy an R7 which would give you more reach than the TC (1.6 extra) with no loss of aperture and a back up camera and spare battery and charger too.

 

[chipman]

SOOC -

• Canon EOS R7
• RF100-400mm F5.6-8 IS USM + EXTENDER RF1.4x
• 560.0 mm
• ƒ/11
• 1/1000 sec
• ISO 1600

• Canon EOS R7
• RF100-400mm F5.6-8 IS USM + EXTENDER RF1.4x
• 560.0 mm
• ƒ/13
• 1/1000 sec
• ISO 1000

• Canon EOS R7
• RF100-400mm F5.6-8 IS USM + EXTENDER RF1.4x
• 560.0 mm
• ƒ/13
• 1/1000 sec
• ISO 3200

I have macular degenration, so I'm not the best judge of photos.

 

[Dave Williams]

SOOC -
View attachment 29487

View attachment 29488View attachment 29489

I have macular degenration, so I'm not the best judge of photos.

Nice images but are these full frame or cropped shots? R7 though, not an R6ii

 

[chipman]

Nice images but are these full frame or cropped shots? R7 though, not an R6ii

Full R7 sensor 6960x4640.
R6ii might do worse, since R7 only uses the sweet spot.

 

[Only RF]

I have the R6II and the R7, 100-500 and 1.4. I prefer the TC on my R6II over the R7. This year I'm shooting with the R7 and no TC. The R6II with the TC on.

As for compatibility scroll down.

https://www.usa.canon.com/shop/p/rf100-400mm-f5-6-8-is-usm?color=Black&type=New

Here is a series of shots with the R6II. I would expect it work just as well on the 100-400. You will lose a stop of light but the R6I handles that quite well.

Your R System Images - June 2024

I'd hate to be a fish

rfshooters.com