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Digital Pinhole Cameras
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Orio




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PostPosted: Mon Mar 12, 2007 6:42 pm    Post subject: Digital Pinhole Cameras Reply with quote

This is a thread to collect your experiments with digital cameras and pinhole photography. Let's provide our digital beasts with pinhole apertures and see what we can come up with!
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LucisPictor



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PostPosted: Mon Mar 12, 2007 6:45 pm    Post subject: Reply with quote

I have tried something like that.
But my results were real cr&p so far.

I will stay tuned, though...

Carsten
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Orio




Joined: 24 Feb 2007
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PostPosted: Mon Mar 12, 2007 6:48 pm    Post subject: Reply with quote

LucisPictor wrote:
I have tried something like that.
But my results were real cr&p so far.
Carsten


Well, we're here not only to produce masterpieces Wink but also to compare and learn, so why don't you post some results and explain what you did?
You may have experience = 1 on that, but for instance, I have experience = 0, so there will always be something to learn for somebody!
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Maxim



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PostPosted: Sun Nov 04, 2007 4:34 pm    Post subject: Reply with quote

Today I made a pinhole camera using my E-300, piece of cardboard and alu foil. I haven't experience with pinhole cameras, everything was totally provisional Smile

Results from first hole weren't good. I know, this picture is overexposure Smile Very low contrast and sharpness:



Second hole was also bad... Poor results:



Third hole was a bit better Smile Good contrast, but poor sharpness.




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Jesito



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PostPosted: Sun Nov 04, 2007 4:38 pm    Post subject: Reply with quote

Are you shooting with a tripod?.
The third and fourth ones are very good...

Best regards,
Jes.
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Maxim



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Joined: 27 Oct 2007
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Location: Poland 52°N 17°E


PostPosted: Sun Nov 04, 2007 4:45 pm    Post subject: Reply with quote

Yes, I used a tripod and self-timer.
In the photos you can see many dirt spots. When I take pictures with normal lens, this problem doesn't exist Smile

Digital pinhole camera is good for macro with DOF from 0 to infinity (but IMHO the angle of view should be wider). ISO 200, 4 sec:



Interesting results with long exposure, also in sunny afternoon. ISO 200, 10 sec:



I'm going to make better pinhole Smile
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Katastrofo



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PostPosted: Sun Dec 02, 2007 3:21 pm    Post subject: Reply with quote

Hubert, really like that last picture, very unusual but nice effect.

Steve, like the shots of the French press set and hammock detail!

Bill
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Orio




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PostPosted: Sun Dec 02, 2007 5:35 pm    Post subject: Reply with quote

Well, congratulations. None of my awkward tentatives of doing pinhole with my digital reflex has ever come out so sharp.

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shad309



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PostPosted: Sat Mar 08, 2008 7:27 pm    Post subject: Reply with quote

New to forum. I did some recently with a DIY conversion (body cap, coffe can metal, needle, hammer, tape, & hot glue...)
you can see them at www.flickr.com/photos/shadarington
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Attila



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PostPosted: Sat Mar 08, 2008 7:35 pm    Post subject: Reply with quote

Nice to see you here!
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Rob Leslie



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PostPosted: Tue Nov 11, 2008 12:49 am    Post subject: Reply with quote

The New Lensbaby range now has the option of being able to fit different optics one of which is a f177 pinhole. The new Composer lens is the ideal one to go with it.
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kds315*



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PostPosted: Wed Dec 17, 2008 12:25 pm    Post subject: Reply with quote

I tried pinhole photography some time ago, but was not really impressed:
http://photographyoftheinvisibleworld.blogspot.com/search?q=pinhole
BUT it has the advantage to show all the dirt on your sensor! Wink Wink

1/4sec, f240

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vilva



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PostPosted: Mon Mar 30, 2009 4:22 pm    Post subject: Reply with quote

Here are two more pinhole photos taken with a 0.25mm pinhole body cap (f/190) on 5D and post-processed.

In the first photo, the edge of the body cap touched the nearest edge of the plate:



In the second photo the distance from the sensor to the nearest lens is 10cm, and to the farthest lens about 35cm:



The final IQ is the result of multi-phase post-processing with GIMP:

1. add Gaussian blur to hide some diffraction noise, radius=4.0
2. down-sample to 3000 pixel wide
3. USM radius = 5.0, amount = 0.50
4. down-sample to 2200
5. USM radius = 3.8, amount = 0.40
6. down-sample to 1500
7. USM radius = 2.1, amount = 0.40
8. down-sample to 900
9. USM radius = 0.8, amount = 0.40
10. refocus = 0.8, noise = 0.02

I'm not sure whether this procedure is optimal, but the results are OK. This isn't your traditional pinhole photography, but the idea is to chart out the technical possibilities for those situations where lenses are simply inadequate and even layered focusing breaks down.

Veijo
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Orio




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PostPosted: Mon Mar 30, 2009 4:25 pm    Post subject: Reply with quote

Brilliant compositions, Veijo. I especially like the second one.
What is your feeling regarding digital and pinhole?
Do you think digital is better/same/worse than film as pinhole "medium"?

I somehow seem to prefer film to digital for this application (I am speaking purely on aesthetical level)
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vilva



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PostPosted: Tue Mar 31, 2009 5:00 am    Post subject: Reply with quote

Orio wrote:
Brilliant compositions, Veijo. I especially like the second one.


thanks Smile

Quote:
What is your feeling regarding digital and pinhole?
Do you think digital is better/same/worse than film as pinhole "medium"?


Well, digital (with a 5D) is very convenient for web use and perhaps for small prints up to 4" x 6" max. However, for larger prints I'd use film. With film, reciprocity failure may be a problem, especially with a large frame size and color. This is the technical side.

Quote:
I somehow seem to prefer film to digital for this application (I am speaking purely on aesthetical level)


Using appropriately dimensioned pinholes, there isn't much difference aesthetically, that is, not more than when using lenses. 5" x 5" prints of my best 6x6 film pinhole photos are so sharp that you wouldn't think they are pinholes except for the DOF, 4"x6" prints from my 5D pinholes would already be quite soft. At the same original frame size, we would be back at the eternal film vs. digital debate, using a pinhole instead of lenses doesn't change much.

Veijo
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