Re: How do I cope with and successfully manage a variable lens @ 500 mm @ f7.1?
The best current compensation for the necessity of high ISOs with because of relatively slow lenses is to shoot in RAW and run the files through AI noise reduction software, such as what is incorporated in the current versions of Adobe's software, as well as from other companies. This approach benefits from having as much detail/information in a given image for the software to use as a basis for noise reduction and image reconstruction. Meaning, the better the sharpness of the image, the larger the bird is in the image, the better the noise reduction software can 'fix' the image.
In one of your earlier posts you stated that size and weight was a primary motivator for considering the R5II and 100-500. Unfortunately the reality of physics dictates that if you want more light gathering power at 500mm, it will require a larger front element and a corresponding increasing the size and weight of the lens.
Considering that you came from Nikon, and in the previous thread some of the suggestions were to consider the Z8 and one of Nikon's PF prime lenses, such as adapting the F mount 500/5.6, which is very small and 2/3 stop faster than the 100-500, or the 600/6.3 which has more reach while still being fairly reasonable in size.
As was pointed out, the 100-500 is currently the best *compromise* option with respect to size, weight, versatility and optical performance (sharpness).
I agree with a previous post and suggest you just go out and use it. There will likely be a fairly steep learning curve and the best way to figure out what works for you is through firsthand experience.
May 19, 2026 at 01:32 AM
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