November - Pinhole and Zone Plate Side Challenge

10/22/2008 04:37:26 PM · #51

bump to get some more eyes, and maybe, participants...

MelonMusketeer

Nikon D7000

Nikon MF 50mm f/1.4

10/22/2008 07:24:21 PM · #52

To ball park exposure, maybe a technique for night shooting time exposures will help. Shoot the test shots at the highest iso available, then adjust to a lower iso and adjust exposure time to match. That way it would not take nearly so long to work out a useful exposure time.

Nikon AF Nikkor 50mm f/1.8D

10/24/2008 11:37:01 AM · #53

bump to attract more participants...

Jason_Cross

Nikon D50

10/24/2008 12:45:40 PM · #54

So how does this work? Do we just start posting images the first of the month?

10/24/2008 01:07:32 PM · #55

I will start an image posting thread on November 1 (or very likely, an hour or so before midnight on Oct 31) - I will also post a link to that thread here, so everyone can find it. I may even PM the link to everyone who has signed up, if I can manage to be that organized, but I'm not promising anything. :)

Canon EF 24-105mm f/4.0L IS

10/27/2008 12:49:04 PM · #56

bump to see if we can round up any more participants!

Melethia

Canon EOS-80D

10/27/2008 12:52:48 PM · #57

Yikes. I still haven't done anything about making a pinhole! I need tools! I must go in search of some at work tomorrow.

Mephisto

Nikon Coolpix A

Panasonic Lumix G 14mm F2.5 ASPH

10/27/2008 01:08:45 PM · #58

yikes! and i haven't done anything about getting a decent shot for the FS! (sorry for highjacking the thread) but thanks deb for reminding me there's only a couple days left...
as for the pinhole, i changed mine a little by setting up the plate a little closer to the sensor and trying to make the hole even a tad smaller. the pics still look really soft (oof), but that's how it's supposed to look like anyways i guess.
oh and i found out that the "focal length" of my pinhole lens is around 35mm (times 1.5= 55mm). any chance to make that angle a little wider???

Melethia

Canon EOS-80D

Canon EF 24-105mm f/4.0L IS

10/27/2008 01:19:34 PM · #59

Ohh. Free Study. I'd forgotten that part, too. Can't help you with the technicalities of the pinhole angles because I'm totally clueless. Hoping to learn as I go.

Panasonic Lumix G 14mm F2.5 ASPH

10/27/2008 01:21:11 PM · #60

Originally posted by Mephisto:

my understanding is that the larger the pinhole, the wider the angle of view... but given how composition can be harder with pinhole photography, not being able to see through the viewfinder and all, restricting your angle of view might help you target subjects better, especially if it's a subject-in-a-larger environment shot. You might not want to go too wide. If that makes any sense, I'm not so sure myself! :)

Mephisto

Nikon Coolpix A

10/27/2008 01:27:29 PM · #61

Originally posted by krnodil:

Originally posted by Mephisto:
yikes! and i haven't done anything about getting a decent shot for the FS! (sorry for highjacking the thread) but thanks deb for reminding me there's only a couple days left...
as for the pinhole, i changed mine a little by setting up the plate a little closer to the sensor and trying to make the hole even a tad smaller. the pics still look really soft (oof), but that's how it's supposed to look like anyways i guess.
oh and i found out that the "focal length" of my pinhole lens is around 35mm (times 1.5= 55mm). any chance to make that angle a little wider???

my understanding is that the larger the pinhole, the wider the angle of view... but given how composition can be harder with pinhole photography, not being able to see through the viewfinder and all, restricting your angle of view might help you target subjects better, especially if it's a subject-in-a-larger environment shot. You might not want to go too wide. If that makes any sense, I'm not so sure myself! :)

mmh as far as i understood the angle of view various upon two conditions:
1)the size of the sensor/film and
2)its distance to the pinhole.
thus, the bigger the size of the sensor/film and the narrower its distance to the pinhole the wider the angle. i might be totally off with this theory though...lol

Canon EF 100mm f/2.8 USM Macro

10/27/2008 01:41:48 PM · #62

well distance from sensor to "lens" does factor in, but I have a bunch of pinholes from a "build your own" kit I got years ago that are marked (for the same home-built camera) with specific focal length/angles of view - with the larger size holes indicating the wider angles.

Haven't played with this particular aspect of pinhole for a while (even since I went digital I cheated and bought a ready-made body cap), trying to figure out the right size and so on, but sticking a pin through a bit of craft-store metal is pretty cheap, so it couldn't hurt to try. I plan to mock up a couple in the next few days as well, to see how they compare with my ready-made one - also want to try (probably a very crude attempt) to make a pinhole sieve.

I have the needles, I have the metal sheets, I just need the time. :)

pointandshoot

Canon EOS-10D

10/27/2008 11:07:53 PM · #63

Originally posted by Mephisto:

That is the way I understand it, too. I think the only other way to widen the angle of view (other than decreasing the distance of pinhole to sensor) is to bend your sensor into an arc :) If anyone knows another way to widen the angle I would like to know, because I would like to have as wide of an angle as possible. A super-wide angle makes it easier to capitalize on a pinhole camera's infinite DOF.

Karen, a smaller pinhole has the effect of making the image sharper (to a point) so I don't know what your pinhole kit was referring to. The only thing I can think of is if the hole is smaller than the thickness of the material used, there will be vignetting and this could give the impression of a smaller angle of view? Maybe?

Canon EF 100mm f/2.8 USM Macro

10/27/2008 11:32:54 PM · #64

You may very well be right, Steve. My technical knowledge on the finer points of pinhole photography are slim to non-existent, so it's very likely my suppositions are way off base. I elect to take your lead on any further explanations. :)

pointandshoot

Canon EOS-10D

10/28/2008 09:46:58 PM · #65

Originally posted by Mephisto:

yikes! and i haven't done anything about getting a decent shot for the FS! (sorry for highjacking the thread) but thanks deb for reminding me there's only a couple days left...

Christoph, enter a pinhole shot in the FS and try to beat Karen's highest DPC score for a len-less shot:

Or beat the highest pinhole score ever (by

xianart):

Canon EF 100mm f/2.8 USM Macro

10/28/2008 10:01:30 PM · #66

I hope after November all of us might be blazing a new pinhole/zone plate path through the "real" challenges, and getting them to score well would be quite a treat.

jaysonmc

Nikon D200

Nikon MF 105mm f/2.5 AIS

10/28/2008 10:20:29 PM · #67

I haven't had much luck with my pinhole setup yet. Not as much fun as it was with film.
Now it is just blurry. :(

pointandshoot

Canon EOS-10D

10/28/2008 10:45:37 PM · #68

Originally posted by jaysonmc:

I haven't had much luck with my pinhole setup yet. Not as much fun as it was with film.
Now it is just blurry. :(

BLURRY?... there ain't no BLURRY in pinhole photography. It is just... well... just a little soft. Yeah, that's it... just a little soft. Soft, like a cute little bunny.

10/28/2008 11:02:40 PM · #69

Originally posted by pointandshoot:

Originally posted by jaysonmc:
I haven't had much luck with my pinhole setup yet. Not as much fun as it was with film.
Now it is just blurry. :(

BLURRY?... there ain't no BLURRY in pinhole photography. It is just... well... just a little soft. Yeah, that's it... just a little soft. Soft, like a cute little bunny.

hmmm...might lend a whole new meaning to "wabbit hunting"

Panasonic Lumix G 14mm F2.5 ASPH

10/29/2008 12:51:31 PM · #70

Here's a recent article on a pinhole photographer.

I like the article author's phrase "smudged focus" - much better than "blurry". ;)

Mephisto

Nikon Coolpix A

10/29/2008 01:01:56 PM · #71

Originally posted by pointandshoot:

Originally posted by Mephisto:
yikes! and i haven't done anything about getting a decent shot for the FS! (sorry for highjacking the thread) but thanks deb for reminding me there's only a couple days left...

Christoph, enter a pinhole shot in the FS and try to beat Karen's highest DPC score for a len-less shot:

Or beat the highest pinhole score ever (by xianart):

haha, i didn't even know we could add the "costum made pinhole/zone plate" from the lens data base! lol

and no i guess i'll safe this idea for the next "soft focus" or "blurry mess" challenge...;)

10/29/2008 01:37:22 PM · #72

Some more pinhole images for inspiration.

10/29/2008 05:17:42 PM · #73

More pinhole goodness here and here.