Re: [pinhole-discussion] 35 mm pinhole camera
Hi Zami, Sorry for the late reply. The pinholes are 55 mm f 166 with a pinhole diameter of about 0.33 mm and a 105 mm f 318. Actually I prefer zone plate 35 mm photography, I don't like 35 mm pinholes (At least I don't like mine). I'll keep using the 4x5 cameras with pinhole. I transformed the 35 mm pinholes into 2 new plastic lens to use with the camera. Now with this 35 mm camera and the extension bellows I am using 55 and 105 mm zone plates and 390, 210 and 150 mm plastic lens, one of them in even a composition of a positive and negative lens to give me a usable focal distance. Cheers Joao Zami Schwartzman wrote: Joaothanks for your reply Did you try a pinhole with it ? I wander whe hole size and focal lengt and what are the resultsZami -Original Message- From: pinhole-discussion-admin@p at ??? [mailto:pinhole-discussion-admin@p at ???]On Behalf Of Joao Ribeiro Sent: Sunday, October 13, 2002 12:35 AM To: pinhole-discussion@p at ??? Subject: Re: [pinhole-discussion] 35 mm pinhole camera Hi Zami, I have an old Yashica XYZ, I don't really remember the specs, but I found an adapter to use pentax thread lenses with it (it transforms the bayonet into a thread). I had some aluminum tubes made to fit this thread, so now it is easy to change focal distances and/or transform from Zone Plate to pinhole in no time. I even made a 300 mm plastic lens with an old pentax extension bellows, the aluminum tube and some black tape and it is working pretty well. Cheers Joao Zami Schwartzman wrote: Anyone has tried converting a 35 mm camera to pinhole ? I have modified an old Pentax Spotmatics Reflex camera , the idea was that using a 35 mm format will make it easier to experiment with various types of films . film drive , sutter timing , tripod attachement and release cable are already there and any local photo shop will process the films for me . I turned a lens boby on my lath that allows the metal foil be located 28 mm from the film . I discovered that with this camera I can flip the mirror up permanently without disabling other camera functions ( except for the viewfinder that obviously is shut off ) I use 0.02 mm copper foil .The pinhole was made under a x70 stereo microscope by using a very sharp pin ( honed under the microscope ) on hard back surface . the buurs on the oposit side had to be very carefuly treated with no. 400 sandpaper to get a perfect hole . Although not a sraight forward job , I can get perfect holes as small as 0.05 mm diameter ( I have scale on the microscope ) . there is no chance to get any smaller with manual pin puncturing tecniques . I experimented with a 0.1 mm hole , got some good close up pictures well exposed with Kodak gold 400 ASA( using f: 120 on the light meter ) but the results are quite out of focus on 10x15 prints . I wander if going further to a 0.05 hole will worth the panelty in the f number . Is there an optimun hole size for best sharpness ? or is it the smaller the better . I hear that some people are converting plastic 35 mm cameras , I wander what holes they use and how sharp is the resultant image they get . Zami -Original Message- From: pinhole-discussion-admin@p at ??? [mailto:pinhole-discussion-admin@p at ???]On Behalf Of DAVID WALTERS Sent: Friday, October 11, 2002 11:29 AM To: pinhole-discussion@p at ??? Subject: [pinhole-discussion] Re: New to the list and saying hello Evening, I apologize for the lag time on answering but I had a brief episode of file overload while trying to upload some pics (Sorry and thanks, Gregg). I have a pinhole from my last roll posted at http://photos.yahoo.com/bc/wal...@prodigy.net/lst?.dir=/Photo+art.src=ph;. order=.view=t.done=http%3a//photos.yahoo.com/ (badge), along with some other pieces of mine. The body cap is on my Canon EOS, I measured the distance at 49 mm and I'm using a laser drilled opening of .0102, this gives an f/stop of 163, I reckon. Using the bulb setting has given me fairly good results with Kodak film, although it seems to be able to meter through the pinhole. The Polaroid pinholes are from a Polaroid 210 with a hand drilled pinhole, I had such a bad rolloff because of reciprocity that I have stuck with B/W since. I might go back to color with the 210 and stick to extreme sun in the future, we'll see. Thanks for the welcome, David
Re: [pinhole-discussion] 4x5 film
Readyloads. See at www.calumetphoto.com - Original Message - From: Catherine Just blue_medic...@yahoo.com To: pinhole-discussion@p at ??? Sent: Wednesday, October 16, 2002 11:56 AM Subject: [pinhole-discussion] 4x5 film hi, after using 4x5 film holders with my pinhole while traveling, I am very interested in the film that is already in a holder. I can't remember the name of it. does anyone have information about what I am trying to describe??? So instead of having to load the film into a holder you can buy a pack of film in its own holder. I am interested in black and white film, 100 speed. curious where to buy it, and how many come in a pack. Some people where talking about it a while back, but I have deleted the information. also: I'm looking through my first pinhole images, and most of them were handheld 45 second eposure, so they look hazey/ slightly blurred which I love. I am considering printing sizes as I am planning on having a show of these images. But I am curious about how much more blurred it will be if I blow them up really large. I will most likely lose alot of the detail, and they may look really blown out But because they are images with castles in them, they just scream at me to be bigger. Does anyone have experience printing this type of image large? Did you lose the image quality so much that it wasn't worth the enlargement??? Curious before i get started. also: has anyone used alternative methods of printing such as kallitype? Or salt printing? Interested in creating more depth / and using an old method of printing for these castles. thank you ! Catherine = Catherine Just Photography http://www.catherinejust.com Don't just state your intent, Live it. ~Jerry Seiner Jr. __ Do you Yahoo!? Faith Hill - Exclusive Performances, Videos More http://faith.yahoo.com ___ Post to the list as PLAIN TEXT only - no HTML Pinhole-Discussion mailing list Pinhole-Discussion@p at ??? unsubscribe or change your account at http://www.???/discussion/
Re: [pinhole-discussion] Re: Pinhole Origins
Kurt, you would have to order a copy from Proquest Renee
Re: [pinhole-discussion] 4x5 film
Hi: Salt printing is one of the easiest alternative processes - (cyanotype is the easiest) One of the best books on salt printing (and albumen printing) is The Albumen and Salted Paper Book by James Reilly - its out of print but is available online as a web page at: http://albumen.stanford.edu/library/monographs/reilly/ Also see: George L. Smyth's altprocess page http://mywebpages.comcast.net/hmpi/AltProcess/Articles/AltArticles.htm For an introduction to alt-process see http://duke.usask.ca/~holtsg/photo/faq.html For everything you ever wanted to know about alternative processes see the alt-photo-process mailing list archive http://www.usask.ca/lists/alt-photo-process/ Gord (who manages to alt-photo-process list :) ) On Wed, 16 Oct 2002, Catherine Just wrote: also: has anyone used alternative methods of printing such as kallitype? Or salt printing? Interested in creating more depth / and using an old method of printing for these castles. thank you ! Catherine = Catherine Just Photography http://www.catherinejust.com Don't just state your intent, Live it. ~Jerry Seiner Jr. __ Do you Yahoo!? Faith Hill - Exclusive Performances, Videos More http://faith.yahoo.com ___ Post to the list as PLAIN TEXT only - no HTML Pinhole-Discussion mailing list Pinhole-Discussion@p at ??? unsubscribe or change your account at http://www.???/discussion/ - Gordon J. Holtslander Dept. of Biology hol...@duke.usask.ca112 Science Place http://duke.usask.ca/~holtsgUniversity of Saskatchewan Tel (306) 966-4433 Saskatoon, Saskatchewan Fax (306) 966-4461 Canada S7N 5E2 -
Re: [pinhole-discussion] 4x5 film
On Wed, 16 Oct 2002, Catherine Just wrote: hi, after using 4x5 film holders with my pinhole while traveling, I am very interested in the film that is already in a holder. I can't remember the name of it. I think you are referring to the readyload packs from Kodak. I use TMAX ones for black and white. They are substantially more expensive than traditional film packages, but you can't beat the convenience of not having to load and unload in a dark place. Also, your film stays cleaner and is less likely to get scratched, in my experience. Check this document: http://www.kodak.com/global/en/service/pubs/kic/kic92753/kic92753.pdf
[pinhole-discussion] Was 1: Is This Nuts? Now: Triboluminescence!
Okay, time to look this up! http://www.towson.edu/~sweeting/wg/candywww.htm Fascinating study on triboluminescence... includes photos (somehow stays on topic?). John Moore Ramona, CA --- erick...@hickorytech.net wrote: I think I remember that the general technical term for the phenomenon we're talking about is piezoelectric. - Original Message - From: Tom Miller twmil...@mr.net Subject: Re: [pinhole-discussion] 1: Is This Nuts? Dear All, Thank you for the reassuring psychiatric evaluation, for a new word and the desire for a new experience with wintergreen lifesavers. If the lifesavers came in little tins, this email thread could come full circle. Tom - Original Message - From: Achal Pashine Tuesday, October 15, 2002 Subject: Re: [pinhole-discussion] 1: Is This Nuts? Do you mean, triboluminescence of Lifesaver?? achal. __ Do you Yahoo!? Faith Hill - Exclusive Performances, Videos More http://faith.yahoo.com
Re: [pinhole-discussion] 4x5 film
The film type is referred to as 'quickload' or 'readyload', depending on the manufacturer, and generally comes in b/w, color neg and color transparency. It fits a 4x5 Polaroid back and functions similarly to Polaroid sheets in the way the paper functions like a dark slide. It's much more expensive than traditional sheet film, as you're paying for the convenience. Any major supplier should carry it; try bhphoto.com in NYC. Enjoy and good luck, Margaret Graham Catherine Just wrote: hi, after using 4x5 film holders with my pinhole while traveling, I am very interested in the film that is already in a holder. I can't remember the name of it. does anyone have information about what I am trying to describe??? So instead of having to load the film into a holder you can buy a pack of film in its own holder. I am interested in black and white film, 100 speed. curious where to buy it, and how many come in a pack. Some people where talking about it a while back, but I have deleted the information. also: I'm looking through my first pinhole images, and most of them were handheld 45 second eposure, so they look hazey/ slightly blurred which I love. I am considering printing sizes as I am planning on having a show of these images. But I am curious about how much more blurred it will be if I blow them up really large. I will most likely lose alot of the detail, and they may look really blown out But because they are images with castles in them, they just scream at me to be bigger. Does anyone have experience printing this type of image large? Did you lose the image quality so much that it wasn't worth the enlargement??? Curious before i get started. also: has anyone used alternative methods of printing such as kallitype? Or salt printing? Interested in creating more depth / and using an old method of printing for these castles. thank you ! Catherine = Catherine Just Photography http://www.catherinejust.com Don't just state your intent, Live it. ~Jerry Seiner Jr. __ Do you Yahoo!? Faith Hill - Exclusive Performances, Videos More http://faith.yahoo.com ___ Post to the list as PLAIN TEXT only - no HTML Pinhole-Discussion mailing list Pinhole-Discussion@p at ??? unsubscribe or change your account at http://www.???/discussion/
[pinhole-discussion] 4x5 film
hi, after using 4x5 film holders with my pinhole while traveling, I am very interested in the film that is already in a holder. I can't remember the name of it. does anyone have information about what I am trying to describe??? So instead of having to load the film into a holder you can buy a pack of film in its own holder. I am interested in black and white film, 100 speed. curious where to buy it, and how many come in a pack. Some people where talking about it a while back, but I have deleted the information. also: I'm looking through my first pinhole images, and most of them were handheld 45 second eposure, so they look hazey/ slightly blurred which I love. I am considering printing sizes as I am planning on having a show of these images. But I am curious about how much more blurred it will be if I blow them up really large. I will most likely lose alot of the detail, and they may look really blown out But because they are images with castles in them, they just scream at me to be bigger. Does anyone have experience printing this type of image large? Did you lose the image quality so much that it wasn't worth the enlargement??? Curious before i get started. also: has anyone used alternative methods of printing such as kallitype? Or salt printing? Interested in creating more depth / and using an old method of printing for these castles. thank you ! Catherine = Catherine Just Photography http://www.catherinejust.com Don't just state your intent, Live it. ~Jerry Seiner Jr. __ Do you Yahoo!? Faith Hill - Exclusive Performances, Videos More http://faith.yahoo.com
Re: [pinhole-discussion] 1: Is This Nuts? 2: A Plug
I think I remember that the general technical term for the phenomenon we're talking about is piezoelectric. - Original Message - From: Tom Miller twmil...@mr.net To: pinhole-discussion@p at ??? Sent: Wednesday, October 16, 2002 8:57 AM Subject: Re: [pinhole-discussion] 1: Is This Nuts? 2: A Plug Dear All, Thank you for the reassuring psychiatric evaluation, for a new word and the desire for a new experience with wintergreen lifesavers. If the lifesavers came in little tins, this email thread could come full circle. Tom - Original Message - From: Achal Pashine Tuesday, October 15, 2002 5:09 PM Subject: Re: [pinhole-discussion] 1: Is This Nuts? 2: A Plug Do you mean, triboluminescence of Lifesaver?? achal. --- Tom Miller twmil...@mr.net wrote: Dear List Members, 1: I've noticed that when pulling electrician's tape off the roll in complete darkness there is a small greenish light at the spot where the tape is pulling off the roll. Recently, I made ..snip.. Oh, I see that too. I forget the technical name for it, but I remember doing an experiment in high school where you cracked a wintergreen lifesaver in the dark and it created a similar brief light -- imagine 30 high school students breaking lifesavers in the dark. Brave teacher, no? I think it's the same physics/chemistry involved. ___ Post to the list as PLAIN TEXT only - no HTML Pinhole-Discussion mailing list Pinhole-Discussion@p at ??? unsubscribe or change your account at http://www.???/discussion/
