Peterff Loc: O'er The Hills and Far Away, in Themyscira.

Most people on UHH would benefit from watching this. How they would benefit might differ, but I suspect that most would benefit.

JPL

Part of what Tony Northrup says is in this video is valid and part of it is not.

It has long been known that crop factor of the sensor has no affect on the shutter speed you need to use. But the pixel density/size has. There fore with more resolution you get better results with higher shutter speeds. This has been noticed on all high resolution cameras in recent times from the Nikon D800 to Canon 5DS when compared to cameras with lower resolution but same size sensors. But never have I heard or seen any proof that you need to increase the shutter speed on those cameras if you switch to crop mode and everyting else stays the same. If sensor size had anything to do with shutter speed needed to avoid motion blur you would of course have to increase the shutter speed when using only the crop part of the sensor in those cameras.

In this video is the most famous nonsense from Tony at around 18:15 where he explains that full frame lenses are not good on Aps-c cameras. If he was true about that no one would be using cameras like the Canon 7d or Nikon d500 with all those 70-200 lenses or longer prime lenses for wildlife and sports. There he is mixing generally bad lenses with some imagined magic of lenses made for crop sensor cameras.

My point here. Do not believe everything you see on internet, use your brain and logic.

DWU2 Loc: Phoenix Arizona area

Contrary to what some others have opined, I think you are correct. The rule (assuming you're not using image stabilization) is 1/(effective focal length). The effective focal length is the nominal focal length times the crop factor. Here's a useful article:

https://improvephotography.com/37091/minimum-shutter-speeds-for-handheld-shooting-the-definitive-answer-to-how-slow-can-you-go/

Bill_de Loc: US

I like it, but in a couple of years the shutter speed on my camera won't go high enough.

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GoofyNewfie Loc: Kansas City

I find experience useful.

JPL

Yes, experience is very useful

Peterff Loc: O'er The Hills and Far Away, in Themyscira.

I do, and you are just another voice on the internet!

I didn't say that I believe everything that Tony Northrup says, nor what conclusions should be drawn from that video, just that 'most' UHH members would gain benefit from watching it, whether they agree with his observations or not. It might make them think, and that they may learn something from that process.

JPL

Paulie Loc: NW IL

#1 lesson learned from this video is "Rule is not really a rule"

Taken out of context it applies to so many things...

rgrenaderphoto Loc: Hollywood, CA

Here's the easy way: Put your camera into Program mode, take a few test shots. Take those settings and migrate them over to Manual, and use the exposure compensation dial to adjust to conditions. WIth modern DSLRs, you really have no upper limit, it depends on the conditions.

What camera do you shoot with?

Pegasus Loc: Texas Gulf Coast

I would be much more concerned with pixel pitch than field of view. The D850's sensor has a pixel pitch about the same size as the D500 and the other DX cameras. I would think that it will show the same amount of blur as the DX camera when you crop the same picture from the bigger sensor.

It's also the reason why most pictures I ever see from a smartphone are blurry when inspected somewhat more closely than on a web page.

So as MP goes up, you need to increase the shutter speed.

dsmeltz Loc: Philadelphia

Exactly. In fact, in most situations, shutter speed is going to be determined by other factors. Such as motion of the subject, lighting, distance to the subject, desired photographic effect, etc...

SteveR Loc: Michigan

Let's think about what is happening with a crop sensor. A lens will project an image onto a crop sensor at the same size as onto a full frame sensor. The only difference is that the crop sensor does not record as much of the image. The image that IS recorded, however, could be found on a full size sensor at the same size, i.e., what the center portion of the lens projects onto each sensor will be projected looking exactly the same. Changing the shutter speed would have no affect on the quality of that image.

dsmeltz Loc: Philadelphia

But, if you were using a FF and planned to crop the shot, you would need to take into account the fact that you have effectively zoomed in on the shot. To get the same framing of the shot on the FF that you have with the APS-C without cropping you would need to use a longer focal length. So to get the framing the same as from an APS-C at 100mm you would need to zoom to 150mm on a FF. You would use the 1/150 as the rule for both. But again, I do not find this rule very useful in real life.

Paulie Loc: NW IL

Theory is one thing, real life experience is another. Sometimes there is a harmony between the two, sometimes not so much. Many people will have their own examles from their point of view, but the way I see it, there is always something to learn or think about or try and see how something I just discovered (whether it's based on valuable input of experienced members here or following educators elsewhere) works for me...

My apologies to OP for steering the discussion away from his topic.