Re: [pinhole-discussion] Cannon A-1 Pinhole
I think the perhaps unusual thing about the OM-2 is that it ALWAYS does the off-the-film thing, adjusting exposure during the exposure if the light changes. Colin --- Derek Clarke dere...@cix.co.uk wrote: Canon use off-the-film flash metering in TTL mode. These days they offer E-TTL which use preflash and the main body meter sensors, but for every body but a digital one you can set the flash to TTL mode manually. __ Do You Yahoo!? Yahoo! - Official partner of 2002 FIFA World Cup http://fifaworldcup.yahoo.com
Re: [pinhole-discussion] Cannon A-1 Pinhole
Canon use off-the-film flash metering in TTL mode. These days they offer E-TTL which use preflash and the main body meter sensors, but for every body but a digital one you can set the flash to TTL mode manually. In article 20020622160259.98853.qm...@web11303.mail.yahoo.com, ctalcr...@yahoo.com (Colin Talcroft) wrote: Actually, I wouldn't be surprised if this off-the-film-plane metering isn't as unusual any more as it once was. I apologize for forgetting that cameras have continued to evolve since then. I kind of got stuck in time with the OM-2. I haven't kept up with SLRs since I got the camera, which was a quarter of a century ago now! As I said in my previous post, the meter is great for pinhole (and everything else) in most situations that don't require VERY long exposures. I would guess that using the B setting and timing with a wristwatch and making all the usual pinhole exposure estimations is still the easiest way to get good results with a body cap pinhole or zone plate on an SLR. When I first started doing pinhole body caps I used to use my Yashica TL-500 Electro. I would simply screw off the lens and cover it with tin foil and then prick a hole (or several) in the foil. ASA 200 Ektachrome slide film was my film of choice at the time (I'm still looking for these pictures. They're around here somewhere). I controlled the expesure with the B setting and a cable release. It worked great despite the reflective surface of the foil, which, in retrospect, is kind of surprising. Nowadays you can sometimes pick up old cameras like this for a few bucks in the junk bins of camera stores. They are fun to experiment with, but, of course, any old light-tight box will do. Colin
Re: [pinhole-discussion] Cannon A-1 Pinhole
Yes, I too was going to reply to the question about the Canon A-1 with a word about the Olympus OM-2. I'm glad someone mentioned this. I have a vague recollection of when I bought my OM-2--the only SLR I have ever owned--reading in the manual the section that explained that the auto exposure meter continues to read light from the film plane after the shutter has opened and will end the exposure or extend it as appropriate if light conditions change after the shutter has been depressed. I am not aware of many other (any other?) cameras that do this. I am not even sure that many other Olympus cameras did this. I'm pretty sure the OM-1 does not. OM-2 bodies are often available used. They are fairly pricey, however. They are more expensive now than when they were new. I remember in Japan a body in good used condition was usually about 35,000 yen, just under $300 today. I think mine was about $200 when new in 1977. No doubt they appear on E-bay, but I don't know. Anyway, I regularly use mine as a pinhole camera with a body cap pinhole. I've found that outdoors in bright light with ASA 1600 film (or even 400) you can use it handheld pretty easily. It mounts on a tripod (naturally!) for indoor work. A fair number of the pinhole photos on my pinhole site were done this way. (http://www.sonic.net/~talcroft/PinholeSite/). The other end of the light spectrum would be the nudes on the same site, which were done with the same body cap on ASA 100 film indoors using a tripod. It's been a while, but I remember the metered exposure through the pinhole (a laser-drilled hole of about f=143) was generally 8-30 seconds in the low light studio conditions (at night with one, sometimes two 300W bulbs). I remember the result usually was a gross underexposure, so in very low light situations I'm not sure the OM-2 meter alone can be relied on to do anything special that is useful for pinhole. It remains a beautiful camera, nevertheless. Colin __ Do You Yahoo!? Yahoo! - Official partner of 2002 FIFA World Cup http://fifaworldcup.yahoo.com
Re: [pinhole-discussion] Cannon A-1 Pinhole
Aperture priority will work, and a quick and easy method to deal with any reciprocity is to do a few things, first, half your ASA rating on your camera and shoot merrily while you smile. Additionally, If you are shooting BW you can use a more efficient or compensating developer in the processing. Rodinal at a dilution of 1:100 will deliver superb negatives for pinhole, as its compensating action keeps the highlights from being blown out. Some will scoff and say that Rodinal is not a developer for film speeds above 100 ASA, I heartlily disagree. My most luminous negatives have been made with Neopan 400 developed in Rodinal at 1:100. Acufine and Diafine are two examples of efficient developers for underexposed or weak negatives. Timing is more critical in the development stage, in the case of Acufine too much development will severely block up your negatives. If you are really worried about reciprocity, try a chromogenic film, say Ilford XP2 super and shoot it aperture priority set at ASA 100. I have tried this with zoneplate negatives on my nikon and the images were superb! All that and I could run it through the local 1-hour. Don William Erickson erick...@hickorytech.net wrote: I doubt the aperture priority will work proerly with the pinhole, if I understand you correctly. there doesn't seem to be any reciprocity failure within the 30 second exposure time limits. I haven't tried longer. - Original Message - From: gregg b. mc neill To: Sent: Wednesday, June 19, 2002 1:40 PM Subject: [pinhole-discussion] Cannon A-1 Pinhole If I'm setting my analog Cannon A-1 to Aperture Priority, with the pinhole bodycap, will the exposure that the camera gives me reflect any of the reciprocity adjustments needed to porperly expose the image? Also is there any reciprocity concerns in digital? thanks in advance gregg mc neill _ MSN Photos is the easiest way to share and print your photos: http://photos.msn.com/support/worldwide.aspx ___ 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/ - Do You Yahoo!? Sign-up for Video Highlights of 2002 FIFA World Cup
Re: [pinhole-discussion] Cannon A-1 Pinhole
I would recommend shutter priority since exposures tend towards seconds rather than fractions of seconds. Also Aperture Priority wouldn't reflect the correct f/stop since the body cap isn't an aperture ring. - Original Message - From: gregg b. mc neill gbmcne...@hotmail.com To: pinhole-discussion@p at ??? Sent: Wednesday, June 19, 2002 2:40 PM Subject: [pinhole-discussion] Cannon A-1 Pinhole If I'm setting my analog Cannon A-1 to Aperture Priority, with the pinhole bodycap, will the exposure that the camera gives me reflect any of the reciprocity adjustments needed to porperly expose the image? Also is there any reciprocity concerns in digital? thanks in advance gregg mc neill _ MSN Photos is the easiest way to share and print your photos: http://photos.msn.com/support/worldwide.aspx ___ 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] Cannon A-1 Pinhole
If I'm setting my analog Cannon A-1 to Aperture Priority, with the pinhole bodycap, will the exposure that the camera gives me reflect any of the reciprocity adjustments needed to porperly expose the image? Also is there any reciprocity concerns in digital? thanks in advance gregg mc neill _ MSN Photos is the easiest way to share and print your photos: http://photos.msn.com/support/worldwide.aspx
