Re: A Canon RF 300-600mm f/4-5.6L IS USM on the Horizon
jaredmizanin wrote:
A 1.4x extender would make a 300-600/5.6 a 420-840/8; without the extender restrictions that the 100-500 has, I think that would be a great combo, wouldn't you agree? It would be sharper and better built, with internal focusing versus your 200-800. And if the lens is actually a 300-600 f4-f5.6 variable aperture, even better! Then a 420/5.6 to 840/8 zoom. I personally feel the 1.4x extender on the 100-500 is amazing and thus would expect no less from a higher-priced telephoto zoom. I just feel this lens will be quite pricey and although it certainly would bridge the gap between the 100-500 and 600/4 prices, many would still wish for a 5 or 6K lens offering.
Agreed on the extenders. I have very good results with both RF´s. Even on the 200-800. Have not yet tried the 1,4x on my 100-500 as I got the -800 before the 1,4x.
But I see no advantages with internal focusing. The lens just gets big and heavy, two characteristics I avoid. Therefore a 800/8 would be nice. Sharp, clear, colourful as well as handy and native 800. Slap the 1,4x on for a 1120/11 and 2x for a 1600/16.
Ok, so diffraction I do not like. But I´d rather take some diffraction than a lens at home when I need it. Big and heavy stays at home all to often. And the 800/11 is nice on the R5´s at f/11, so why not a 1120/11?
The one thing I would like to try these days are to write about all my fantastic experiences with my brand new Canon RF 300-600 f/5,6 L IS. How much does it take to get some very interesting AI results about Canons incredible newest tele zoom lens??
Dec 05, 2025 at 05:39 PM
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