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R5 on AirPower 2022

Started 6 months ago | Photos thread
Karl_Guttag Senior Member • Posts: 1,883
Re: question for Karl...

Zeee wrote:

R2D2 wrote:

BigBen08 wrote:

Karl_Guttag wrote:

SigZero wrote:

This year I've decided to visit AirPower airshow in Zeltweg Austria.

All taken with my R5 with RF 100-500, some with 1.4x converter.

As for parameters: all on electronic shutter, Tracking AF (all area) with subject set to "none", Av with Auto ISO (with manual modifications for some propeller photos)

I'm curious why you chose to use Av with Auto ISO. My go-to for air shows is Manual with Auto-ISO. I typically leave the RF100-500 at f11 and then adjust the shutter speed based on the motion blur I want to achieve (vs. the better hit rate at higher shutter speeds). I typically use an ND4 with prop planes to keep the ISO above 100 at slower shutter speeds.

I also have the RF 100-500mm. What density ND filter do you recommend. They are usually available in 0.6 to 1.5 density. When I shot propeller planes at slow shutter speeds (no ND filter used), it resulted in f number between f10 to f19.

When I shot an air show recently I used a CPL to slow the props down. Since I didn’t need more than a stop, it served a dual purpose. 😁

R2

I found at times I don't like what a CPL can do to the skies. I use the top end B+W but at a few shots over a lake in the evening it showed darker sky in the corners. That may have exaggerated the vignetting the lens has.

Agreed. It is also why I don't use variable ND filters, as they are also based on polarization and can cause issues with the sky and reflections.

For anyone interested. A variable ND filter is two linear polarizers (one rotating) followed by a "quarter waveplate" that converts the linear to circular polarization. A CPL is just a linear polarizer that rotates and a quarter waveplate outputs circular polarization. Their behavior is thus similar to reflections and the sky only with a variable ND, you typically can't (a few can if you can rotate both polarizers) control the direction of polarization you are blocking (effectively putting CPL on and then spinning the filter randomly).  I would rather not worry about it, so I buy fixed ND filters.

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 Karl_Guttag's gear list:Karl_Guttag's gear list
Canon EOS R5 Canon RF 15-35mm F2.8L IS USM Canon RF 24-70mm F2.8L IS USM Canon RF 70-200mm F2.8L IS USM Canon RF 24-240mm F4-6.3 +14 more
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