Re: 18 x24 pinhole/lens camera

on 12/21/2001 7:58 AM, ragowaring at ragowaring@btinternet.com wrote:

> I have an old DIY (Do It Yourself) Manual from the 1920's, I think, that
> shows you how to make a quarter plate camera from scratch including bellows,
> boards, dark slides, frame, brass fittings, etc, etc. It is quite a process
> and you need to be quite skilled with woodworking tools. However, with
> modern materials and equipment the work is made much easier
>
> If anyone is interested I can scan the chapter and email it as a PDF file or
> whatever. I shall just need a little time. Let me know if you are
> interested.
>
> Alexis
>
>
>
>
> on 21/12/01 11:12 am, Guy Glorieux at guy.glorieux@sympatico.ca wrote:
>
>> Hi Murray,
>>
>> I've also got one of those 18x24 bellows which I picked up on ebay a couple
>> of
>> years ago and which is still sitting in its box. I find that there are a
>> number or issues to need to be resolved but I haven'tresolved them yet. But
>> I have not put my imagination full time on it.
>>
>> The questions I need to resolve are:
>> 1. What kind of frame to build for the back standard and the front standard,
>> considering that the back will need to hold a very large format film or
>> paper, that the front will need to hold the lensboard and that the two should
>> preferably be parallel.
>> 2. How do I get the front and back standards aligned together rigidly to a
>> frame that will allow the bellows to extend or compress. In the case of an
>> 18"x24", the considerable weight of the bellows makes this a more difficult
>> problem to solve than for a 4x5 or an 8x10 bellows.
>> 3. What kind of light-tight contraption do I build to hold the paper or film
>> against the back standard.
>> 4. Is there a way that I can build a contraption that will allow me to place
>> several sheets of paper or film, so that I don't have to run back to my
>> darkroom after each exposure?
>>
>> I haven't tought about this for some time. I did check around on the
>> internet
>> for sites that talk about building large format cameras and I found quite a
>> lot of useful information. My problem is that I am not very good as a
>> woodworker and I just don't have the right tools.
>>
>> I'd be interested to hear about your ideas for your camera. I don't see any
>> problems discussing it on the list, unless we get into minute details.
>>
>> Cheers,
>>
>> Guy
>>
>> Uptown Gallery wrote:
>>
>>> Hello:
>>>
>>> Excuse the partial diversion from pinhole - I am thinking about what to do
>>> with an 18" x 24" bellows I picked up - definitely pinhole first, but I
>>> would like to have the option of experiementing with a lens - and the only
>>> affordable way would be a homebrew lens.
>>>
>>> Is there anyone here who has any experience with simple 2-element lenses
>>> with insertable Waterhouse stops willing email off list about some of the
>>> basics of such a camera?
>>>
>>> Thanks
>>>
>>> Murray
>>>
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>>
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>
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Alexis,

please add me to your list :)

thanks,
jack duganne
duganne@earthlink.net
Received on Mon Dec 24 20:00:07 2001