[redcat]

I'm trying flash photography now and find this diagram very interesting/useful.
What about you guys, any diagram you find interesting and want to share ?

source: Behind The Shutter

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Last edited by redcat; 04-04-2020 at 08:33 PM.

[Madaboutpix]

Well, here's one for the beginner's section. While, for digital photography, "sensitivity" should probably be "(applied) gain", the practical implications get clear enough IMO. As photographers who have internalized and put to use these basic concepts of the exposure triangle for decades, we tend to forget how difficult to grasp and remember they are for many newbies who simply want to take good photos, without being willing to dig all that deep into technical matters or the physics of it.

[aslyfox]

i'll take any help I can get

please keep this stuff going

[ProfessorBuzz]

I'm trying flash photography now and find this diagram very interesting/useful.
What about you guys, any diagram you find interesting and want to share ?

Where'd you get it - it's always a good practice to provide a citation and give credit. You'd want the same if I used your photos ;-)

[Madaboutpix]

In an attempt to revive a thread that I knew would struggle to compete against threads in the die-hard "Bizarre fruit of my LBA" or "Why I had to leave Pentax" vein, to mention just two evergreens, here's more.

These two illustrate the double-the-distance method for maximizing DOF by informed guessing, without having to resort to unreliable distance scales on lenses nor unpractical hyperfocal distance charts.

Of course, they shouldn't go without attribution to Spencer Cox over at Photography Life: https://photographylife.com/landscapes/double-the-distance-method-explained

Spencer has also written another article which digs a little deeper into the rationale behind that focusing method: https://photographylife.com/why-hyperfocal-distance-charts-are-wrong

[redcat]

These two illustrate the double-the-distance method for maximizing DOF by informed guessing, without having to resort to unreliable distance scales on lenses nor unpractical hyperfocal distance charts.

An interesting method indeed, thanks for sharing

---------- Post added 04-05-20 at 04:38 AM ----------

Where'd you get it - it's always a good practice to provide a citation and give credit. You'd want the same if I used your photos ;-)

I added the source, i dont remember exactly what video it's from but the channel has many good videos so worth check them all out

[Madaboutpix]

Diagrams like this one, even simplified as they are, have helped me to get a better sense of how a (FF) camera's horizontal angle of view differs from the average human's, and to understand that what the camera "sees" through a standard lens is actually quite different from the way we humans see:

Source: https://pixelcraft.photo.blog/2019/08/16/is-the-eye-equivalent-to-a-50mm-lens/

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[Class A]

and to understand that what the camera "sees" through a standard lens is actually quite different from the way we humans see

The idea behind a standard lens is not to mimic human vision (e.g. by approaching the same field of view) but to create images that will show an undistorted perspective when viewed from a distance that is equal to the viewed image diagonal.

Standard (or "normal") lenses therefore need to have a focal length that is identical (or close to) the sensor diagonal. Nothing to do with human vision.

[Madaboutpix]

The idea behind a standard lens is not to mimic human vision (e.g. by approaching the same field of view) but to create images that will show an undistorted perspective when viewed from a distance that is equal to the viewed image diagonal.Standard (or "normal") lenses therefore need to have a focal length that is identical (or close to) the sensor diagonal. Nothing to do with human vision.

Exactly. I was hoping the actually in my post would convey a sense of 'contrary to popular belief'. And actually the differences between human and camera vision are much more complex than the diagram would suggest, but I still found it helpful enough to share.

[Class A]

And actually the differences between human and camera vision are much more complex than the diagram would suggest, but I still found it helpful enough to share.

Definitely, on both counts.

[SpecialK]

I got this from a PF post - the file date is 2011. Somewhere on the internet is a video from a series, I think called The Art of the Image or some such, in which the somewhat whiny host overlaid all these 35mm variants with a much larger 4x5 neg and sniffed at the thought of "fullframe"... (I, and others, called him Tard of the Image for one of his Pentax reviews).

Relative Sensor size