RF24-105/4 performance

Started 2 months ago | Discussions thread
SteveinLouisville
SteveinLouisville Senior Member • Posts: 1,062
Re: I think it's time to go take pictures.
1

Thomas A Anderson wrote:

SteveinLouisville wrote:

Posting a 2.8MP image is not only unhelpful, it is deceptive because that critical detail that you're looking at in an image of a natural scene only appears with very high resolutions and as it is downsized everything magically looks sharper and sharper.....because the devil, as it were, is in the DETAIL.

I certainly didn't intend to deceive anyone. See one of my posts below, f4.0 and 21 MB in size. Back in the old days bandwidth and upload speed was so limited, I got in the habit of downsizing things. I can post them as large as you want, unless the server declines the upload.

Here is the same one at f8, 24 MB in size.

No, I wasn't implying you were doing something intentional to deceive. The issue is that judging critical detail can only be done at the sensor's native resolution because anything lower will create the appearance of sharpness that the human visual perception will then interpolate in such a way as to make one believe the same level of sharpness exists at the native resolution as well. It's just a trick of human visual perception combined with the effect of taking somewhat blurry detail and obscuring it with a lower resolution.

This f/8 image demonstrates what I mentioned in my other post about the aperture in that the f/8 image looks much better than the f/4. Thanks for your time!

24 mb

When I shoot landscapes I generally start at f8 or up, until maybe f13. I shot the other one at f4 to see how bad (or good) it would be wide open.

 SteveinLouisville's gear list:SteveinLouisville's gear list
Canon EOS RP Canon EF 17-40mm f/4.0L USM Canon EF 40mm f/2.8 STM Canon RF 35mm F1.8 IS STM Macro Canon RF 24-105mm F4L IS USM +4 more
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