4000 vs 8000 shutter speed

Bassat wrote in post #18460941
The original 6D has ISO 50. I don't care if it is a kludge or not; it works, and it allows me to shoot f/2 in broad daylight.

It has an ISO 50 setting, but it has a stop less RAW headroom than the ISO 100 setting, because they are just metering differences and converter differences of the same RAW gain and digitization. There might be some small differences in JPEGs, but JPEGs generally waste RAW headroom anyway, so a stop lost in the RAW highlights will affect a JPEG a lot less.

I am very happy to have 1/8000s speed, so I can use the f/0.95 Mitakon and other fast lenses better at bright daylight without grey filter.
Up to now I do not need the fast shutter times to freeze action, but it could be helpfull there too.

Having ISO 50 or ISO 64 and 1/8000 is a big help if you enjoy shooting primes. D810 has both, but my D750 only had native ISO 100 and 1/4000. YMMV

you need 8000 ss as much as you need f1.2. Both have their uses. Some people need it more than others.

Shooting on a beach in the early afternoon wide open? I almost guarantee you that you'll need 1/8000.

Fyahstarter wrote in post #18977073
Shooting on a beach in the early afternoon wide open? I almost guarantee you that you'll need 1/8000.

Na, that's what NDs were invented for.

Fyahstarter wrote in post #18977073
Shooting on a beach in the early afternoon wide open? I almost guarantee you that you'll need 1/8000.

gjl711 wrote in post #18977076
Na, that's what NDs were invented for.

Or perhaps a polarizer, a key consideration when working on a beach.

In my Lightroom library of nearly 23000 images going back 11 years, I have a grand total of 8 images shot at ISO 100 and 1/8000'. All were shot Av mode at f/2.8 or f/2.0 in the late afternoon. Some were underexposed so 1/8000' wasn't really necessary to begin with but that's what the camera picked. It sure looks like I'd be fine with a camera maxing out at 1/4000', especially since I shoot raw and pulling back 1 stop is usually not a big deal.

And then there are some of us who max out at 1/1000, so for all of you stuck with 1/4000, it could be worse. Point being that "need" is going to differ for different folks.

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From time to time, I "max out" when using my 6D, and blow the shot because there is not enough exposure latitude built into the camera.

That has never happened - not even once - with any of my other cameras, all of which are capable of 1/8000 second.

I don't want to have to think about camera settings when I am trying to keep up with a fast-moving animal as it traverses the thickets and hills. . Just penetrating the brush and hopping over the creeks without getting soaked is enough to have to consider. . When I do catch up to the critter and have a split second to try to get a shot off, there simply isn't time to make an adjustment to my settings.

I can't even begin to tell you how many times I've missed a shot because I was literally just a split second too slow getting the camera up and pointed at the animal. . So I really appreciate gear that has enough latitude to get a good quality image without me having to fiddle with it.

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