Re: [pinhole-discussion] Re: Exposure scale

2002-03-27 Thread John Yeo
You can always convert it to a .pdf file using a program called Pstill. Get it at http://download.cnet.com/downloads/0-10074-100-1628951.html?tag=st.dl.10001- 103-1.lst-7-4.1628951 If the url is broken, COPY AND PASTE IT TOGETHER! Rob - you might want to put up the .pdf version. John I

Re: [pinhole-discussion] Re: image circle relative to focal length/fstop

2002-03-27 Thread G.Penate
- Original Message - From: Zernike Au zern...@zeroimage.com If you want to control the circular image to 2' or 3 (the range is quite big!), the main factor is the thickness of the front panel of your camera that hold the pinhole and where you mount the pinhole, and also the size of

[pinhole-discussion] Re: image circle relative to focal length/fstop

2002-03-27 Thread Zernike Au
Hello Thom, Is that you want to get a circlar image with dark corner or dark edge? What film format are you going to use. I try to make pinhole camera to avoid dard corner, my 1 inch focal legnth cameras can cover the whole 4 x 5 film! If you want to control the circular image to 2' or 3 (the