Rethinking focal length conventions

Started 7 months ago | Discussions thread
Phil A Martin
Phil A Martin Veteran Member • Posts: 6,307
Re: 6%

Pixel Pooper wrote:

Phil A Martin wrote:

  1. Pixel Pooper wrote:

Phil A Martin wrote:

Pixel Pooper wrote:

My point is that a 43mm lens does not match the perspective of the human eye, it matches the perspective of an image viewed from a distance equal to the image diagonal. If you view your images from closer it might be 28mm that matches the perspective, and from a bit farther it might be 65mm. There is nothing special about 43mm except that it matches what was once considered "standard" viewing conditions.

So basically you are saying that the conventions of decades are wrong and that there is no such thing as a standard lens.

No, I'm saying that you, and many others misunderstood

Such arrogance. I have misunderstood nothing and also perfectly understand your games.

Your repeated claim that 43mm matches the perspective of the human eye suggests otherwise. Our perspective depends on where we stand when we look at something, it is not a property of the human

the conventions of decades and the meaning of a standard lens. A standard, or normal lens is one that produces a natural looking perspective under standard viewing conditions,

As I've been saying

which is when an image is viewed at a distance equal to its diagonal measurement.

No because the effect is also seen when you look through the camera viewfinder.

That depends on the viewfinder. I have 4 cameras with viewfinders and they are all different.

These are the same viewing conditions used by DOF calculators and in both cases the results are only correct when the viewing conditions are met.

No, what you are doing is engaging in a ridiculous point scoring exercises, when you know perfectly well what people mean by a standard lens and for full frame, the 43mm lens is the ideal choice.

I do know perfectly well what people mean. I also know that they are mistaken.

I refuse to engage with your word play and misquotes, you've had your fun. This conversation is over.

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