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Type: Posts; User: HenryChavez

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    Thanks for the response. I'm familiar with the...

    Thanks for the response. I'm familiar with the PW white paper. I wish I could say that this camera was a result of reading it. Truth be told, the camera was conceived around a cigar box. I had a...
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    I found an error. The tangent calculation is...

    I found an error. The tangent calculation is wrong because of type.
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    A Little Help with Equations

    I came upon a couple of equations and decided to use them on a proven pinhole camera I own. This camera takes really "sharp" images for a pinhole camera. I always guessed that I was getting these...
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    Ned, Thank you so much for your contribution...

    Ned,
    Thank you so much for your contribution to this odd, but interesting thread. I vehemently agree with your comments. It is all connected. Consider the artist who uses a digital or even film...
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    Joe, This is one is nice too, although I must...

    Joe,
    This is one is nice too, although I must say I do like the soroban beads, this one is also very nice. How big is the one with the soroban beads, can you show something for scale?

    Best,
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    Joe, This is lovely. I like your idea...

    Joe,
    This is lovely. I like your idea regarding the side rails, it looks like it would be easier to hold with these instead of the traditional box design. Now I wan to learn to use it! Dang it!...
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    Update

    Well, I have a working copy up and running of the program I was writing. I'm still debugging it, but it seems to work fairly well. I'm thinking of adding ISO, but I haven't decided yet. I'll see...
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    Ned, Seriously fascinating. I was a poor...

    Ned,
    Seriously fascinating. I was a poor student with math as a youngster, only as a result of my arrogance. As an adult I have found a great need for it and have had to teach myself as a...
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    Thanks Earl, that is what I am using. This tells...

    Thanks Earl, that is what I am using. This tells me I am going in the right direction.

    Best,
    Henry
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    Thanks Dave. Very cool to know. HC

    Thanks Dave. Very cool to know.

    HC
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    Thanks Joe, I'd seen the number, but didn't know...

    Thanks Joe, I'd seen the number, but didn't know it was the square root of 2. This is the missing piece. Thanks!

    Best,
    HC
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    Need a Math Fiend to Help Me!

    I am working on a program to use the zone system. Basically, the program documents the aperture, shutter speed and gives the EV number. You choose what zone you want to put the reading at and the...
  13. Thanks Tom. I have an 8x10 in my head I need to...

    Thanks Tom. I have an 8x10 in my head I need to get out. I bought some Brazilian mahogany specifically for it, but it has been too hot to work in the garage. Maybe in the fall.
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    Thank you Greg.

    Thank you Greg.
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    Thanks, I use this app quite a lot. It helps me...

    Thanks, I use this app quite a lot. It helps me to document what I've done in the field. I can use it as a quasi spot meter and save each of the measurements. If I had to write one (an app) myself...
  16. Thanks guys, that's nice of you to say.

    Thanks guys, that's nice of you to say.
  17. Thanks. That is very nice of you to say.

    Thanks. That is very nice of you to say.
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    This was my first pinhole

    I made this pinhole using a cigar box. Two of the three pinhole cameras I've made are from cigar boxes. This is my first attempt at a pinhole. I sacrificed a Singer roll-film back by permanently...
  19. Pinhole Calculator for iPhone, Android and Kindle

    For those who are interested, I wrote a little program that can be used on mobile devices that support the powerOne app. This is a calculator platform that allows for customization or programs that...
  20. Thank you. I kinda went overboard. My next one...

    Thank you. I kinda went overboard. My next one was bit more subdued. Also a bit wider focal length. They both work great and the images are sharp. Thanks again for the kind words.

    1343

    1345
  21. Pimp 4x5 Pinhole Shoots Velvia, Film at eleven.

    Here is the pinhole camera.
    1341
    Here is the best image taken with said camera.
    1346
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    What a great idea. Thanks for sharing. One...

    What a great idea. Thanks for sharing. One question though. . .do you take the final image with a film or digital camera?
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    What a wonderful idea. Some interesting results...

    What a wonderful idea. Some interesting results too. Thanks for sharing.
  24. Thread: Gryphus 8

    by HenryChavez
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    Renon, I am always inspired by what you do. ...

    Renon,
    I am always inspired by what you do. Brilliant images, the second pinhole is definitely an improvement, but most folks would not see the difference.
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    Oh my goodness, that was a wonderful video! I've...

    Oh my goodness, that was a wonderful video! I've seen the liquid emulsion, but I had not considered this wonderful way of using it. What a great idea. Making a positive would be even better. ...
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