Re: [pinhole-discussion] pinholes with hasselblad
Yesterday I made a pinhole lens for my Hasselblad and have run two roles of film through it with excellent success. Here is what I did... I found myself a peice of black matt board and cut a circle out of it that fit more or less into the front of my camera. I then put two layers of gaff tape (any thick tape will do) around the edges of the matt board to add thickness and account for iregularities in my scissor work. I poked a hole in the center, put the matt board on the camera and lined up the pinhole by staring through the back of the camera. I then taped the pinhole in place. My lens is made out of .001 brass shim stock with a hole that is .018 in diameter resulting in an effective aperture of F-160 (or somehwhere there abouts) The matt board plug pushes firmly into the front of the camera and works just fine. I've run two roles through with no light leaks and I've shot several polaroids as well. If you have a prism finder (somthing other than the waistlevel finder) in bright lighting conditons you can see through the pinhole to compose. Works very well on bright sunny days. For metering I use a Pentax Digital Spotmeter and meter for F-128 (which is as high as it goes) and then I just add a stop. In the studio I set my lights for F-64 and flash the strobes 4 times. So far every exposure has been right on... If you care to see the images let me know and I'll post them. ~Levi Brown On Thu, 9 Nov 2000 06:51:38 -0800 (PST) =?iso-8859-1?q?hannah=20smolenska?= hsmolen...@yahoo.com writes: hi there, i'm interested in trying pinholes with medium format film with a hasselblad, using 400 speed film. any suggestions on exposure times? thanks! hannah
Re: [pinhole-discussion] pinholes with hasselblad
The official hasselblad pinhole body cap, which gives sharp pinhole images, says that the pinhole is f230, at a diameter of 0.0126. I calculate exposure to be around 125 times what is metered for f22. Then add reciprocity correction to that. - Original Message - From: hannah smolenska hsmolen...@yahoo.com To: pinhole-discussion@p at ??? Sent: Thursday, November 09, 2000 8:51 AM Subject: [pinhole-discussion] pinholes with hasselblad hi there, i'm interested in trying pinholes with medium format film with a hasselblad, using 400 speed film. any suggestions on exposure times? thanks! hannah __ Do You Yahoo!? Thousands of Stores. Millions of Products. All in one Place. http://shopping.yahoo.com/ ___ Pinhole-Discussion mailing list Pinhole-Discussion@p at ??? unsubscribe or change your account at http://www.p at ???/discussion/
Re: [pinhole-discussion] pinholes with hasselblad
Exposure depends on your pinhole size and focal length. Take a look at: http://home.netcom.com/~lfratkin/calcpinh.html This will give you an f stop for your pinhole. Then just use a meter to determine exposure time and refer to this page: http://home.netcom.com/~lfratkin/Exposure.html Pinholes are generally made with brass shim, but I have had success with aluminum from pop cans (sides, not top bottom). Drill the hole with a fine needle. Determine actual size of the hole by measuring it through a loupe. You can see some of my images at: http://www.members.home.net/pegan14/eps/usa/ob/ob01.html These are made with a large coffee can bw paper (my coffee-can-cam). Good luck. Paul Egan. - Original Message - From: hannah smolenska hsmolen...@yahoo.com To: pinhole-discussion@p at ??? Sent: Thursday, November 09, 2000 9:51 AM Subject: [pinhole-discussion] pinholes with hasselblad hi there, i'm interested in trying pinholes with medium format film with a hasselblad, using 400 speed film. any suggestions on exposure times? thanks! hannah __ Do You Yahoo!? Thousands of Stores. Millions of Products. All in one Place. http://shopping.yahoo.com/ ___ Pinhole-Discussion mailing list Pinhole-Discussion@p at ??? unsubscribe or change your account at http://www.p at ???/discussion/
[pinhole-discussion] pinholes with hasselblad
hi there, i'm interested in trying pinholes with medium format film with a hasselblad, using 400 speed film. any suggestions on exposure times? thanks! hannah __ Do You Yahoo!? Thousands of Stores. Millions of Products. All in one Place. http://shopping.yahoo.com/
