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DPChallenge Forums >> Side Challenges and Tournaments >> Woldwide Pinhole Photography Day 2012
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Showing posts 26 - 50 of 93, (reverse)
AuthorThread
 04/28/2012 02:48:10 PM · #26
Originally posted by bassbone:
Another tip....

Clean your sensor, or don't.


yup.
 04/28/2012 03:25:29 PM · #27
Originally posted by tnun:
Originally posted by bassbone:
Another tip....

Clean your sensor, or don't.


yup.


Mines clean, well, somewhat.
 04/28/2012 05:27:54 PM · #28
Looking at this afternoon's photos, I can see that there is enough dirt on the sensor to replenish most of the muck that has been lost from the Everglades over the last 50 years.

Here's another tip. Since there is no focusing with the pinhole lens, the distance from the pinhole to the sensor is the focal length.

I made one lens from an old lens cap, and another by just putting a piece of tape over the front of the bellows assy that I use with the old Bausch & Lomb/ Zeiss, and made a pinhole zoom. Both were made using "silver" duct tape, and a wire from a wire brush. The diameter of the wire from the brush is .0125 inch.


Message edited by author 2012-04-28 19:17:50.
 04/28/2012 07:14:59 PM · #29
Sounds like fun and something I've wanted to try with a digital camera. If I capture anything interesting I'll post. Look forward to seeing what you guys come up with.
 04/28/2012 08:00:15 PM · #30
Brian, I followed your instructions to the letter.

Although the process took me more than 1 minute...::stares sheepishly at toes::..to my surprised this actually worked!

I'll post my images in a bit.

::Beams sweetly at Brian::

This is fun...;-)

04/28/2012 09:19:49 PM · #31
Oh Dear...my apologies to all the pinhole experts of the world...:-/

My First Pinhole Image:



Message edited by author 2012-04-29 00:00:17.
 04/29/2012 12:06:10 AM · #32
Haven't used my pinhole for a while, so had a little play on Friday evening. Let's see what today brings.
04/29/2012 12:51:30 AM · #33
Originally posted by MelonMusketeer:
Would this qualify?
I will try to see if I can remove the glass and get it down to just the aperture and still get an image at f32.


Here's an update on this. I did find that I could remove both lens elements and get it down to just the aperture with no glass. I tried it at f32, but could not get it to focus at all, as the hole is far too big.
It was pretty easy to make a pinhole in a piece of aluminum tape and just stick it on the front of the bellows, so I did that. I found that I could adjust the focal length with the bellows.
If you have a pinhole lens made from a lens cap, you can try it in combination with an extension tube, bellows, or toilet paper roll tube, piece of pvc pipe, or whatever you have, and gain some focal length.
The results seemed to be pretty much as expected, in that the angle of view is similar to a lens of the same focal length as the distance from the pinhole to the sensor.
As focal length increases though, the apparent aperture becomes much smaller, making it impossible to see anything except highlights on the subject in the viewfinder in daylight, and exposure times increase quite a bit.
It worked better than I thought that it would.
04/29/2012 01:14:08 AM · #34
Originally posted by hihosilver:
Brian, I followed your instructions to the letter.

Although the process took me more than 1 minute...::stares sheepishly at toes::..to my surprised this actually worked!

I'll post my images in a bit.

::Beams sweetly at Brian::

This is fun...;-)

Well Minute Rice doesn't exactly cook in a minute either. Wonderful job!
 04/29/2012 01:52:30 AM · #35
I have too many to post...

Don't forget the world thingee - it is for both film and digital - I had thought it was only film at first.
 04/29/2012 02:51:38 AM · #36
Here's one more item for the DSLR people.
In order to see better when composing, it helps to turn the camera off, so you don't have all the light from the bright heads-up display in the viewfinder competing with the faint light of the image there. This is a good trick to use when shooting with normal lens and equipment at night as well.
It's easy to see why the old view camera photographers used the dark cloth when setting up their shots.
04/29/2012 08:19:05 AM · #37
WPH 29.04.2012
04/29/2012 10:10:13 AM · #38
My first attempt uncropped

Tighter crop


Message edited by author 2012-04-30 23:21:14.
 04/29/2012 12:41:56 PM · #39
Happy Worldwide Pinhole Day!



YAY...after my first attempt, bvy is still talking to me...whew! ;-)
 04/29/2012 12:47:06 PM · #40
If one more drunken Musical festival person told me I'd forgotten to put a lens on the camera I may have swung for them ;)

04/29/2012 12:55:58 PM · #41
Originally posted by Ecce Signum:
If one more drunken Musical festival person told me I'd forgotten to put a lens on the camera I may have swung for them ;)

Snigger.
 04/29/2012 02:02:01 PM · #42
Originally posted by salmiakki:
Originally posted by Ecce Signum:
If one more drunken Musical festival person told me I'd forgotten to put a lens on the camera I may have swung for them ;)

Snigger.


Gotta love the weight with just a pinhole lens.
 04/29/2012 02:48:17 PM · #43
Spent the day creating my pinhole lens, and the afternoon spot editing the crap off the images. I think I should have cleaned it better before trying it out, lots of leftover plastic dust from the sanding... :|


04/29/2012 04:20:32 PM · #44


took a lot of photos, mostly boring...
04/29/2012 06:09:17 PM · #45


Happy Pinny Day!
 04/29/2012 07:12:09 PM · #46
Nearly forgot about this - just whizzed an image off of the beast.

04/29/2012 07:18:21 PM · #47


Pinholes have an interesting problem shooting directly into the sun. At least mine does!
 04/29/2012 08:21:13 PM · #48


Nothing original, but the colors are pretty (IMNSHO).
 04/29/2012 09:43:22 PM · #49
04/29/2012 10:03:36 PM · #50

To follow up the Penny's blue one, here's the local sunset at the river.
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