Archived posting to the Leica Users Group, 2013/10/03
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Our blind cat died many years ago, leaving the home unprotected. I foolishly stored bird seed in a Rubbermaid tub in the garage, and the little monsters managed to gnaw their way inside. I caught a number in traps, and found one actually inside the house. The seed now reside in a galvanized steel can, but I have a mess of mouse droppings to clean up. Many years ago, when our home was new, I heard mice inside a tiled bathroom wall. Stupidly, I forced poison inside the wall. The noises subsided, but soon, the odor became obvious. I had to remove tile and cut a hole to remove the dead mice. Don't make that mistake! Jim Nichols Tullahoma, TN USA On 10/3/2013 4:05 PM, Douglas Barry wrote: > Blind Cats > I note, like all cats, it knows where the food is :-) Our cat Kofi - > 16 year old Siamese derivative - has suddenly gone blind, walks into > doors, is very hesitant coming down stairs, and is totally useless > with his allotted household task - catching mice. The house is now > crawling with the small furry thingies, so action had to be taken and > it now resembles a mousetrap display store. My wife detests seeing the > wee, sleekit, cow'rin', tim'rous beasties alive or dead and I have to > dispose of them covertly. The varying baby Madame Guillotines snapping > noisily during the night played hell with my sleep and I bought poison > recently. Now they die quietly and instead disturb my sleep with the > waft of putrefaction as they silently rot under the bedroom > floorboards.... > > Image Databases > Has anyone used Access 2003 for an image database. I'm organising a 45 > year reunion dinner and want to do name badges as most of us won't > recognise each other under the heavy mask of aged decrepitude. > > I have scanned three group images covering the 160 odd pupils from an > old 1968 yearbook, and am now extracting 160 individual pictures into > a separate directory. I want to create a picture field in the database > that either contains the image or its link. Then I hope to extract > the picture, firstname, and surname fields onto a label and make up > 160 badges with the labels. Anybody any experience of this? > > Thanks > > Douglas > > > > > ----- Original Message ----- From: "Sonny Carter" <sonc.hegr at gmail.com> > To: "Leica Users Group" <lug at leica-users.org> > Sent: Thursday, October 03, 2013 12:25 PM > Subject: Re: [Leica] Auto ISO > > >> First argument I ever got into in the LUG was over the black cat >> thing. At >> the time, I think I was the only person with a black cat. It depends on >> the circumstances. >> >> http://www.sonc.com/belinna_guards.htm >> >> >> On Thu, Oct 3, 2013 at 1:34 AM, Herbert Kanner <kanner at acm.org> wrote: >> >>> That's where you use exposure compensation. Shoot a white swan: >>> increase >>> exposure by compensation or any automatic system will want it to be >>> gray. >>> Shoot a black cat and decrease exposure for same reason. >>> >>> Herbert Kanner >>> kanner at acm.org >>> 650-326-8204 >>> >>> Question authority and the authorities will question you. >>> >>> >>> >>> >>> On Oct 2, 2013, at 12:00 PM, John McMaster <john at mcmaster.co.nz> >>> wrote: >>> >>> > I cannot see how it would? There I am putting an exposure in for a >>> silhouette and the camera thinks "that's underexposed" so ups the >>> ASA 3 or >>> 4 stops.... >>> > >>> > john >>> > >>> >> -----Original Message----- >>> >> >>> >> I'll have to read again, but I don't think AutoISO works on pure >>> >> manual >>> >> mode... >>> >> Would you double check also? >>> >> Thanks Herb, >>> >> Bob >>> >> >>> >> >>> >> On Tue, Oct 1, 2013 at 9:30 PM, Herbert Kanner <kanner at acm.org> >>> wrote: >>> >> >>> >>> I thought a few words about how this function operates on Leica, at >>> >>> least on the M9, might be useful to y'all, since the Leica >>> Manual is >>> >>> not the clearest on this subject. >>> >>> >>> >>> Let's start with an understanding of the relationship between the >>> >>> three >>> >>> parameters: ISO, f-number, and shutter speed. We are used to >>> thinking >>> >>> of exposure having one degree of freedom for a correct exposure. >>> That >>> >>> is because we are used, from years of experience with film, of >>> >>> thinking of ISO being a constant. You can't change ISO in the >>> middle >>> >>> of a roll of film. So, for any situation, there is one degree of >>> freedom for a >>> >> "correct" exposure: >>> >>> you change shutter speed, you have to change aperture, and vice >>> >>> versa. >>> >>> Hence, for the little all-electronic cameras where both the >>> aperture >>> >>> and shutter are under computer control, you can choose the aperture >>> >>> (aperture preferred), or you can chose the shutter speed (shutter >>> >>> speed preferred) and the camera choses the one you didn't chose. >>> You >>> >>> all know this; I'm just being pedantic. Oh, then these idiot >>> cameras >>> >>> have "programmed" mode where the camera chooses both based on >>> >> some arcane set of rules. That's for bozos. >>> >>> >>> >>> Now, lets look at the Leica. The camera can control the shutter, >>> but >>> >>> it can't control the aperture. So the only automatic mode would >>> >>> appear >>> >>> to be aperture preferred. Ah, but the ISO is under the control >>> of the >>> >>> camera's computer. It is now a third variable: it can be changed at >>> >>> any time. So, Leica in its wisdom invented Auto ISO. Now we have >>> two >>> >> degrees of freedom. >>> >>> That is, we can pick the values of any two: say ISO and >>> aperture, and >>> >>> now the shutter speed is determined. Thus, on the Leica, we now >>> have >>> a >>> >>> way of doing shutter speed preferred: set the shutter to the >>> speed >>> you >>> >>> want, set the aperture to the f-number you want, and the camera >>> will >>> >>> pick an ISO that gives the correct exposure. So, what happens if >>> you >>> >>> set Auto ISO and aperture preferred on the M9? You will be in s >>> >>> situation similar to program mode in a point and shoot. The camera >>> >>> will chose both the shutter speed and the ISO value. I took a few >>> >>> shots at three consecutive stops on the dial, and the shutter speed >>> >>> sat at 1 /150, perhaps not what I would want with a 90mm. >>> >>> >>> >>> If you set a shutter speed and an f stop with Auto ISO, everything >>> >>> works fine as long as the ISO that gives "correct" exposure is >>> in the >>> >>> available ISO range. And you can use exposure compensation. What >>> you >>> >>> lose is any information about exposure in the viewfinder. What >>> >>> information could that be? The ISO the camera selects, of course. >>> >>> >>> >>> One warning: the little dot and triangles used for manual exposure >>> >>> setting seem to be meaningless with Auto ISO: just ignore them. >>> >>> >>> >>> Herbert Kanner >>> >>> kanner at acm.org >>> >>> 650-326-8204 >>> >>> >>> > >>> > >>> > _______________________________________________ >>> > Leica Users Group. >>> > See http://leica-users.org/mailman/listinfo/lug for more information >>> >>> >>> _______________________________________________ >>> Leica Users Group. >>> See http://leica-users.org/mailman/listinfo/lug for more information >>> >> >> >> >> -- >> Regards, >> >> Sonny >> http://sonc.com/look/ >> Natchitoches, Louisiana >> 1714 >> Oldest Permanent Settlement in the Louisiana Purchase >> >> USA >> >> _______________________________________________ >> Leica Users Group. >> See http://leica-users.org/mailman/listinfo/lug for more information >> > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information > > >