[pinhole-discussion] Re: Agfa Multicontrast Premium ASA
Hi all, Yes, Guillermo, you are right. I meant OVEREXPOSED, no underexposed. Sorry for the mistake. And yes, my best images with the f/290 camera were with exposure calculated with ASA 64, and to get the same images using the small 35mm film canisters cameras(f/155), I need to calculate exposure with ASA 125. I don't know why, but that's the true. Thanks for your input. Best regards, Marcelo __ Do you Yahoo!? Yahoo! Web Hosting - establish your business online http://webhosting.yahoo.com
Re: [pinhole-discussion] 6x22 pinhole camera coverage?!
My inquiry is regarding how an image would look from such a long neg.? The stated aperture size is f/360. Would the edges suffer from extreme distortion? I'm surprised that the coverage would even fill that length of 22cm!? The aperture is irrelevant, the only thing that matters is the ratio width of format to focal length (corner-corner distance to focal length if one wants to be exact). The ratio of that camera is 3.6 which in theory will have a 4.25 stops fall off at the sides with respect to the center, this kind of fall off is horrendous for glass photography, but for pinhole images, in practice, it doesn't look as big as one may think, IMO. As an example, this image http://members.rogers.com/gpenate/greek.jpg is a portion of a larger image made with a camera with ratio 3 width/focal length, that should give a fall off of 3.4 stops at the top and bottom of the image with respect to the center, and if you ask me, it doesn't look that big of a fall off. They share no images produced with said camera so I have doubts, with my limited understanding of pinhole imagery, to how good the detail would be at the extremes? Again, their camera has a 3.6 ratio, my example image has a 3 ratio, that tells me that if the conditions are favorable: clean pinhole, thin material, good lighting of the extremes of the scene, etc., the detail should be acceptableand if it not, I really like the heavy fall off to the edges effect, too. Having said all that, I wouldn't buy or use a camera from that company, reasons are obvious. Guillermo
[pinhole-discussion] 6x22 pinhole camera coverage: gimmick?
Andrew, I'm with Andy on this one. Just give it a try. You bet you'll get falloff. When I shoot 4x5 using 50mm of focal length, the fall-off is a good 2-3 stops from center to corner. Not only that, but with a focal length that barely covers the film (or even doesn't), you can get very interesting distortion of near objects. Even when I've gone radical, and used a mere 18mm of focal length for 4x5, and ended up with a 1-1/2 inch circular image on the sheet plus the usual falloff, it's still been interesting and provocative. I find the results so worthwhile that when I designed my 7x17 camera, I deliberately chose a focal length of six inches so it barely will cover the film corner to corner. That one still isn't up and running yet, so I can't vouch for the results. I'll tell you, though, the edges are going to look just fine, no matter what they look like. Some of the photographers who participated in this year's Pinhole Exchange showed just how interesting an image can become if we embrace this edge problem that's making you hesitate. I'm thinking of Ingo Guenther's image of a church and (one of my absolute favorites) David Balihar's simple image of fruit rotting in a field. Each of them achieved a stunning effect by working with the falloff. In fact, I think that one reason Ingo's is so strong, is because even without falloff, the image is overwhelmed by negative space. The edge falloff actually contributes to the eye's impression that the brightly lit church is having to fend off darkness and shadows. Another good example is Michael Vaughan's, which was shot from inside a 35mm film canister. How much focal length does one of THOSE give you?! All of them terrific examples of what you can achieve with a focal length that's, ahem, too short. Mike Healy - Original Message - From: andy schmitt aschm...@warwick.net To: pinhole-discussion@p at ??? Sent: Saturday, March 15, 2003 1:44 PM Subject: RE: [pinhole-discussion] 6x22 pinhole camera coverage?! try it. I have a 4x5 that does about a 30mm focal length. The fall off is a really neat effect. You can crop it if you don't like it for the particular image. andy -Original Message- From: pinhole-discussion-admin@p at ??? [mailto:pinhole-discussion-admin@p at ???]On Behalf Of Andrew Amundsen Sent: Saturday, March 15, 2003 2:48 PM To: pinhole-discussion@p at ??? Subject: Re: [pinhole-discussion] 6x22 pinhole camera coverage?! The camera is said to have a 60mm focal length. Does anyone have experience with images made that wide, nearly 8.5 inches, from such a focal lenth (at f/360) on 120 film? Are the edges even useful at that extreme? I guess what I'm getting at is this camera a gimmick? Will the user most likey have to crop only the center portion of the neg. for a usable image and not really get the full 22cm effect? What do you think? Thanks, Andrew -- From: Scott Sellers scottsell...@mindspring.com Andrew Amundsen a...@tcinternet.net wrote (snip): My inquiry is regarding how an image would look from such a long neg.? The stated aperture size is f/360. Would the edges suffer from extreme distortion? I'm surprised that the coverage would even fill that length of 22cm!? They share no images produced with said camera so I have doubts, with my limited understanding of pinhole imagery, to how good the detail would be at the extremes? Anyone care to enlighten us with some expertise? The main factor when considering coverage is focal length. To get an idea of how a particular FL will cover various formats, you could make say an 8x10 a camera of the same focal length, shoot some images, then mask off the negative size you are considering, be it 6x6, 6x9, 6x22, 4x5, 5x7, etc. cheers, Scott ___ 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/ ___ 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] 6x22 pinhole camera coverage?!
try it. I have a 4x5 that does about a 30mm focal length. The fall off is a really neat effect. You can crop it if you don't like it for the particular image. andy -Original Message- From: pinhole-discussion-admin@p at ??? [mailto:pinhole-discussion-admin@p at ???]On Behalf Of Andrew Amundsen Sent: Saturday, March 15, 2003 2:48 PM To: pinhole-discussion@p at ??? Subject: Re: [pinhole-discussion] 6x22 pinhole camera coverage?! The camera is said to have a 60mm focal length. Does anyone have experience with images made that wide, nearly 8.5 inches, from such a focal lenth (at f/360) on 120 film? Are the edges even useful at that extreme? I guess what I'm getting at is this camera a gimmick? Will the user most likey have to crop only the center portion of the neg. for a usable image and not really get the full 22cm effect? What do you think? Thanks, Andrew -- From: Scott Sellers scottsell...@mindspring.com Andrew Amundsen a...@tcinternet.net wrote (snip): My inquiry is regarding how an image would look from such a long neg.? The stated aperture size is f/360. Would the edges suffer from extreme distortion? I'm surprised that the coverage would even fill that length of 22cm!? They share no images produced with said camera so I have doubts, with my limited understanding of pinhole imagery, to how good the detail would be at the extremes? Anyone care to enlighten us with some expertise? The main factor when considering coverage is focal length. To get an idea of how a particular FL will cover various formats, you could make say an 8x10 a camera of the same focal length, shoot some images, then mask off the negative size you are considering, be it 6x6, 6x9, 6x22, 4x5, 5x7, etc. cheers, Scott ___ 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] 6x22 pinhole camera coverage?!
The camera is said to have a 60mm focal length. Does anyone have experience with images made that wide, nearly 8.5 inches, from such a focal lenth (at f/360) on 120 film? Are the edges even useful at that extreme? I guess what I'm getting at is this camera a gimmick? Will the user most likey have to crop only the center portion of the neg. for a usable image and not really get the full 22cm effect? What do you think? Thanks, Andrew -- From: Scott Sellers scottsell...@mindspring.com Andrew Amundsen a...@tcinternet.net wrote (snip): My inquiry is regarding how an image would look from such a long neg.? The stated aperture size is f/360. Would the edges suffer from extreme distortion? I'm surprised that the coverage would even fill that length of 22cm!? They share no images produced with said camera so I have doubts, with my limited understanding of pinhole imagery, to how good the detail would be at the extremes? Anyone care to enlighten us with some expertise? The main factor when considering coverage is focal length. To get an idea of how a particular FL will cover various formats, you could make say an 8x10 a camera of the same focal length, shoot some images, then mask off the negative size you are considering, be it 6x6, 6x9, 6x22, 4x5, 5x7, etc. cheers, Scott
Re: [pinhole-discussion] 6x22 pinhole camera coverage?!
On 0, Andrew Amundsen a...@tcinternet.net wrote: [...] My inquiry is regarding how an image would look from such a long neg.? The stated aperture size is f/360. Would the edges suffer from extreme distortion? I'm surprised that the coverage would even fill that length of 22cm!? They share no images produced with said camera so I have doubts, with my limited understanding of pinhole imagery, to how good the detail would be at the extremes? Anyone care to enlighten us with some expertise? The main factor when considering coverage is focal length. To get an idea of how a particular FL will cover various formats, you could make say an 8x10 a camera of the same focal length, shoot some images, then mask off the negative size you are considering, be it 6x6, 6x9, 6x22, 4x5, 5x7, etc. cheers, Scott -- Scott Sellers| scottsell...@mindspring.com |
[pinhole-discussion] 6x22 pinhole camera coverage?!
(I apologize in advance to Zernike Au for bringing up the product of an English company, which I understand may have infringed on copyrights to the Zero Image's beautiful, original hand made wooden 120 series of pinhole cameras.) In the latest 'Amateur Photographer' magazine(UK) 8 March 2003, there is a small anouncement of a new 'Silver vista' pinhole camera (pg.5) which produces a 6x22cm negative, 3 images per 120 roll! My inquiry is regarding how an image would look from such a long neg.? The stated aperture size is f/360. Would the edges suffer from extreme distortion? I'm surprised that the coverage would even fill that length of 22cm!? They share no images produced with said camera so I have doubts, with my limited understanding of pinhole imagery, to how good the detail would be at the extremes? Anyone care to enlighten us with some expertise? Thanks for the time, Andrew
[pinhole-discussion] Parliament camara obscura
Hi, Why not painting the american congress inside, all in black (you can use oil for that matter), then fire any gun from outside, with all those guys inside. The tiny hole will let the light pass through, and the entire world could be projected on the walls. Maybe they can see that the world outside is quite different of what they think it is (at least, it is upside down), and begin to change their minds. Of course, you should do this with the congress of any country (mine in first place), and try to get the same result. These people seldom represent what the people actually wants. I am not anti-american (on the contrary) neither like Saddam, but cannot resist the temptation the thread on BB pinhole offered! Marcelo Marcelo Mammana --- pinhole-discussion-request@p at ??? wrote: Send Pinhole-Discussion mailing list submissions to pinhole-discussion@p at ??? To subscribe or unsubscribe via the World Wide Web, visit http://www.pairlist.net/mailman/listinfo/pinhole-discussion or, via email, send a message with subject or body 'help' to pinhole-discussion-request@p at ??? You can reach the person managing the list at pinhole-discussion-admin@p at ??? When replying, please edit your Subject line so it is more specific than Re: Contents of Pinhole-Discussion digest... Please DO NOT QUOTE the entire digest when replying to a posting, only quote the message you are replying to. Post to the list as PLAIN TEXT only - no HTML. ___ Today's Topics: 1. RE: Disposable Camera as Pinhole (Moodie, Jason) 2. Re: Willarney's BB Idea (Philip willarney) 3. Re: Willarney's BB Idea (Philip willarney) 4. Re: Disposable Camera as Pinhole (Philip willarney) 5. Re: Willarney's BB Idea (Thom Mitchell) 6. Re: Willarney's BB Idea (John Moore) 7. Re: Willarney's BB Idea (Guillermo) 8. RE: Willarney's BB Idea (Tom Miller) 9. RE: Willarney's BB Idea (Chris Peregoy) 10. 8x10 Ektachrome (Uptown Gallery) 11. Re: 8x10 Ektachrome (dain...@aol.com) 12. RE: Disposable Camera as Pinhole (John Fisher) --__--__-- Message: 1 Subject: RE: [pinhole-discussion] Disposable Camera as Pinhole Date: Fri, 14 Mar 2003 11:21:08 -0800 From: Moodie, Jason mood...@bsd405.org To: pinhole-discussion@p at ??? Reply-To: pinhole-discussion@p at ??? I'm interested too. Jason -Original Message- From: Patrick Barrett [mailto:barrettpatr...@hotmail.com]=20 Sent: Friday, March 14, 2003 11:12 AM To: pinhole-discussion@p at ??? Subject: RE: [pinhole-discussion] Disposable Camera as Pinhole Yes please! That would be extremely helpful. Are you able to send it digitally or do you need to send a paper copy? Thanks for your kind offer. --Patrick From: Howard Wells sandw...@earthlink.net Reply-To: pinhole-discussion@p at ??? To: Pinhole-Discussion Pinhole-Discussion@p at ??? Subject: RE: [pinhole-discussion] Disposable Camera as Pinhole Date: Fri, 14 Mar 2003 13:16:12 -0500 I've done this extensively in workshops and can send you a handout I=20 use for disposable cameras if you wish. some brands work better than=20 others because they can take a normal 35mm cassette, others use a=20 cassette that has a castellated or splined spool top. A nylon=20 quarter-20 nut epoxied to the bottom of the camera can be a tripod=20 socket and some students have made foam-core sliding shutters though=20 black tape works as well. I love the so-called disposable cameras. Let me know if you want the=20 handout and I'll get it to you (and anyone else who might want it) this weekend. Right now I'm closing in a deadline getting an editorial memo=20 to a guy who was CEO and Chairman of a 40 billion dollar company and=20 whose honesty and integrity could make one believe in big business=20 again. Cheers, Howard Wells [Original Message] From: Patrick Barrett barrettpatr...@hotmail.com To: pinhole-discussion@p at ??? Date: 3/14/2003 9:37:15 AM Subject: [pinhole-discussion] Disposable Camera as Pinhole Hello Pinholers, I beleive I've read something here in the not too distant past about replacing the lens and shutter of a disposable camera with a=20 pinhole. I've searched the archives to not much avail. Has anyone done this? Are there websites with diagrams et cetera? I plan to run a small pinhole workshop on pinhole day again this=20 year. Last year we made oatmeal box, pringle can, tea tin cameras and I think=20 this year I'd like to have my students (friends) try disposable cameras=20 (since they use standard sized film). Any help would be much appreciated. --Patrick _ Protect your PC - get McAfee.com VirusScan Online=20
[pinhole-discussion] Re: Willarney's BB Idea/John M's experiment
On a just slightly serious note, it might be an interesting experiment to take pictures with pinholes made with all of the methods listed in this discussion and exhibit them along with the pinholes and even the object that made the hole. There are certainly a lot of ways to make a hole in something. :-) By the way, at Chocolate Fools Day in Cambridge MA last weekend, the Starbucks folks were nice enough to give me two of the oval Mocha Roca candy tins, empty of course. There must be something about candy tins that are oval, since my other oval camera was made from a container of Whiskey Fudge.
Re: [pinhole-discussion] Willarney's BB Idea/John M's experiment
In a message dated 3/14/03 11:51:30 PM Central Standard Time, DAlfrey writes: So- I'll have to request the addresses of each of the original posters of this thread, as my attorney will be contacting each of you tomorrow morning. Since I live in California, I plan on bringing a lawsuit against each of you for not warning me of the dangers of BB Pinholing. I'm looking for the deepest pockets here, so you might as well make it easy on yourselves fess up to your annual incomes. I'm sure Marcy's collection of toy cameras has to be worth serious bucks at this point- so I'm expecting a HUGE settlement! Ohhh I dunno John, I am not an original poster for this idea, but.. given your response here, I think you should know a lawsuit naming you is coming forthwith wink . You see, when I read of your activity /experiment , I broke 3 ribs laughing , plus my eyebrows contorted so badly from disbelief at what I read , that plastic surgery will now be required , plus the soda I was drinking at the time, spewed all the monitor, CPU and walls, thereby neccesitating buying a new puter, (I was looking for an excuse to buy one anyhoo ) , a new paint job on the walls . My guess is that the moderators of this discussion group will soon be thinking of putting a disclaimer :WARNING : pinholing can be dangerous to your health and other living things , OR do not try this at home unless supervision is present . Lastly , since I know this post of mine was/is WAY off topic , I just want to part with this : Thanks John , and all, for making me laugh today . DAlfrey PS, have you considered contacting the Pentagon about becoming a secret weapon of mess (sic) destruction , I hear there is a war coming to a neighborhood near you soon .wink With posts like this, am putting some money into BB stocks and BB gun manufacturing smirk Am gonna make a killing, OOPS maybe I shouldnt have said that
