RE: [pinhole-discussion] aaaaaaarrgg!!!

2001-10-27 Thread LarryBullis
R Duarte ra...@rahji.com wrote:

public pool that i broke into, etc. etc.  um, the film wasn't loaded
correctly and none of the 36 exposures actually happened.  let me tell you,
i feel like demolishing a few buildings myself right now.

that'll teach me to stick with pinhole  :)

My students do this all the time, so we talk about it the first class session, 
and they still do it.  You have to watch to see if the rewind is turning as you 
advance the film.  If it's not, you most likely have a problem.  This is true 
regardless if the camera has a lens or a pinhole.


__
Your favorite stores, helpful shopping tools and great gift ideas. Experience 
the convenience of buying online with Shop@Netscape! 
http://shopnow.netscape.com/

Get your own FREE, personal Netscape Mail account today at 
http://webmail.netscape.com/




[pinhole-discussion] Finney is Back!

2001-04-19 Thread LarryBullis
Hi,

Eric Renner asked me to mention to the list that the Finney camera is back in 
production and Pinhole Resource has some.  Check their website 
http://www.pinholeresource.com/;.

Larry Bullis

__
Get your own FREE, personal Netscape Webmail account today at 
http://webmail.netscape.com/



Re: [pinhole-discussion] Thanks for all the prayers!!!

2001-04-07 Thread LarryBullis
 I only was able to shoot two pinhole photos before they put me under for
 the surgery...

I knew you were going to do that.  Did you have them mount a pinhole in your 
skull to project an image on your brain?  

So glad to see you are not only over that one, but still pinholin'.

Larry Bullis

__
Get your own FREE, personal Netscape Webmail account today at 
http://webmail.netscape.com/



Re: [pinhole-discussion] Shim Stock

2001-04-07 Thread LarryBullis
Lee, 

I had to call 3 or 4 stores in one city before I found one that had it.  The 
store that had it was in the same chain as those that didn't (NAPA) and he had 
a huge roll, snipped it off and sold it by the inch.  In another town, they 
(again, same chain) didn't have brass, but had copper.  That's maybe even a bit 
better because it is easier to darken than brass.  If you want the best of all 
materials, go to a jeweler and have them roll you out a bit of 0.002 silver.

pinhole-discussion@p at ??? wrote:

 
 From: Lee W. Potts l...@leepotts.com
 
 I just started w/pinhole photography and I want to make a better
 pinhole. For my first try I used aluminum from a pie plate. I'd
 like to get brass shim stock, but all the auto supply places
 around here have never heard of it. They look at me like I'm nuts
 when I ask for it. Do they know it as something else? Is there a
 better place to find it?
 
 Lee,
     That is its name.  There are many places where to get it from.  Check 
 this page http://hornepayne.lakeheadu.ca/~gdedemet/motors56/motors11.html
 
 Another place is DoAll ( www.doall.com ), I don't think they mailorder but 
 you may have a store near you.
 
 Guillermo
__
Get your own FREE, personal Netscape Webmail account today at 
http://webmail.netscape.com/



Re: [pinhole-discussion] Buying Pinholes?

2000-09-25 Thread LarryBullis
I can't help you if you insist on drilled holes but if you would settle for 
some handmade, calibrated holes in pure silver, blackened, please contact me 
off list.

Larry Bullis
kingfis...@halcyon.com



Re: [pinhole-discussion] Dissortion by the pinhole?

2000-09-12 Thread LarryBullis
Sebastian,

It is true that pinholes do not distort perspective in themselves; the 
pinhole's image is dependent upon the relationship of the point (pinhole) to 
the plane of projection (film).  

The distortion you are seeing, assuming that the pinhole is placed on the 
perpendicular to a (flat, not curved) film, is due to the fact that you are not 
viewing the image from a point corresponding exactly to the position of the 
pinhole when the image was made.  In fact, you will probably be unable to view 
it that way, because unless you are using a very large camera, your eye would 
have to be very close (impractically close) to the image.  Also, since our eyes 
don't see that way, you would not be able to see it all at once, so in order to 
see one side and then the other, you would have to change the location of the 
eye.  If you could place your eye in that close position, it would be a lot 
farther from the eye to the edges of the image than to the middle, and those 
areas at the edges that seem enlarged when viewing from normal viewing 
distance, would then appear normal.  

I hope this is not too confusing.

This applies to images made with wide angle lenses as well.  The effect can be 
quite disconcerting, but it is not distortion.
 
The oft-mentioned linear distortion of lenses is, for practical purposes, not 
really worth the mention anyway, because it is not generally visible with 
well-corrected contemporary optics.  It is one of those things that is true 
mostly in theory but of very little practical importance.

Larry Bullis

   In some books you can read that the pinhole makes no linear distortion
   as a normal lens does ?
   But the pictures of my super-wide angle pinhole camera (141°) are on the
   edges very distorted !
   (e.g. clouds , zoom-effekt )
   What does linear mean ?


--
Get your own FREE, personal Netscape Webmail account today at 
http://home.netscape.com/webmail/