A Pinhole Camera For Landscape And Portrait Photography?

[Ysarex]

'Background blur' will be equal to the 'subject blur'. There is equal 'out-of-focus' across the entire depth of the scene.

I'm thinking now that a lens is supplied to a camera in order to make the picture bigger or the subject closer at a reasonable subject-to-camera distance. And on the other hand, you may have a point here by stating that a lens is the component that focuses the picture to the film (or sensor). But I'm not sure of that.

That should be a pretty easy one to test -- just take the lens off a camera and then take a picture and see what you get.

Joe

 

[Bluester]

Pinhole photos are always blurry throughout. Pinhole cameras have a practical handicap as the effective f/stop is generally in the range of f/200 to f/300 making handheld photography impractical. And where did you come up with your assertion that the resolution of 35mm film is about 20 megapixels? I would question that.

Joe

The Internet. I don't remember the site but you could always look this topic up on the web.

I don't need to look it up. A more realistic figure would be in the range of 10 to 12 megapixels.

Joe

You could be right. The 20-megapixel resolution could be for the human eye because I looked this topic up also.

 

[Bluester]

'Background blur' will be equal to the 'subject blur'. There is equal 'out-of-focus' across the entire depth of the scene.

I'm thinking now that a lens is supplied to a camera in order to make the picture bigger or the subject closer at a reasonable subject-to-camera distance. And on the other hand, you may have a point here by stating that a lens is the component that focuses the picture to the film (or sensor). But I'm not sure of that.

That should be a pretty easy one to test -- just take the lens off a camera and then take a picture and see what you get.

Joe

You might have a problem with that because a camera film or sensor was designed to work with its lenses.

 

[Ysarex]

'Background blur' will be equal to the 'subject blur'. There is equal 'out-of-focus' across the entire depth of the scene.

I'm thinking now that a lens is supplied to a camera in order to make the picture bigger or the subject closer at a reasonable subject-to-camera distance. And on the other hand, you may have a point here by stating that a lens is the component that focuses the picture to the film (or sensor). But I'm not sure of that.

That should be a pretty easy one to test -- just take the lens off a camera and then take a picture and see what you get.

Joe

You might have a problem with that because a camera film or sensor was designed to work with its lenses.

Well my camera has a "shoot without lens" setting so that's not a problem. Just thought that test might solve your uncertainty that; "a lens is the component that focuses the picture to the film (or sensor)."

JOe

 

[Bluester]

'Background blur' will be equal to the 'subject blur'. There is equal 'out-of-focus' across the entire depth of the scene.

I'm thinking now that a lens is supplied to a camera in order to make the picture bigger or the subject closer at a reasonable subject-to-camera distance. And on the other hand, you may have a point here by stating that a lens is the component that focuses the picture to the film (or sensor). But I'm not sure of that.

That should be a pretty easy one to test -- just take the lens off a camera and then take a picture and see what you get.

Joe

You might have a problem with that because a camera film or sensor was designed to work with its lenses.

Well my camera has a "shoot without lens" setting so that's not a problem. Just thought that test might solve your uncertainty that; "a lens is the component that focuses the picture to the film (or sensor)."

JOe

Problem solved, Joe! You have that "shoot without lens" camera in your hands. (Just joking)

 

[480sparky]

After? All. I was thinking that the pictures taken by a pinhole camera would be better since there are no elements to impede the travel of light to the film.

Technically, that's true. Lacking glass, you don't have any issued glass causes (coma, astigmatism, flare, etc). But........ you have no way to focus the light.

If you can see something, the pinhole camera can see that too. The pinhole camera should see the picture the way your eyes would.

So......... your eyes don't have lenses?

 

[limr]

I guess I don't get an answer.

 

[limr]

After? All. I was thinking that the pictures taken by a pinhole camera would be better since there are no elements to impede the travel of light to the film.

Technically, that's true. Lacking glass, you don't have any issued glass causes (coma, astigmatism, flare, etc). But........ you have no way to focus the light.

If you can see something, the pinhole camera can see that too. The pinhole camera should see the picture the way your eyes would.

So......... your eyes don't have lenses?

Details, details.

 

[480sparky]

Let's try another tact. If pinhole photography is the nirvana of the craft, why doesn't anyone actually use it?

 

[limr]

Let's try another tact. If pinhole photography is the nirvana of the craft, why doesn't anyone actually use it?

*Ahem* No one actually uses it?

 

[Bluester]

After? All. I was thinking that the pictures taken by a pinhole camera would be better since there are no elements to impede the travel of light to the film.

Technically, that's true. Lacking glass, you don't have any issued glass causes (coma, astigmatism, flare, etc). But........ you have no way to focus the light.

If you can see something, the pinhole camera can see that too. The pinhole camera should see the picture the way your eyes would.

So......... your eyes don't have lenses?

The lens in your eye is there to offer protection and to give a reasonable subject-to-optic nerve distance of perception.

 

[480sparky]

The lens in your eye is there to offer protection and to give a reasonable subject-to-optic nerve distance of perception.

I have now..... officially........... heard it all.

Let's try another tact. If pinhole photography is the nirvana of the craft, why doesn't anyone actually use it?

*Ahem* No one actually uses it?

OK, let's narrow the playing field a bit. Let's say......... professionally. I mean, I've never seen anyone shooting for SI or NG using pinhole. Wedding photogs? Never heard of it. Heck, even FaceSpace bloggers don't have pinhole iPhones......

 

[Bluester]

'Just got this information: The human eye has a resolution of 576 megapixels but only 7 megapixels matter.

 

[Soocom1]

OK...

Back in high school I had the opportunity in my photography class to make a pinhole camera.
Everyone made one that was the standard 4x5x2-1/2 inches.

I made a zoom.

I made a pinhole camera that had a total overall length of 14 inches with a front that slid back and forth by 6 inches.

I got an A++ for the project.

The Effective aperture size came out to approx F265 if I remember the math correctly.

The image however was also surprisingly sharp. The images were nearly as tack sharp as any 35mm and the edges were good because the image circle actually was larger than the back of the camera.

We used 50 sp. 2x3 film sheet and D76 when we finished up. The tone was spectacular!

I may still have the images and if so ill post them.


Oh and I forgot... The zoom range was approximate to a 600 mm.

 

[Bluester]

A 35 mm. ISO 100 color camera film has 21 megapixels.