Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 Fluke 1/4/84; site fluke.UUCP Path: utzoo!watmath!clyde!burl!mgnetp!ihnp4!houxm!houxz!vax135!cornell!uw-beaver!ssc-vax!fluke!nxs From: nxs@fluke.UUCP (Bruce Golub) Newsgroups: net.rec.photo Subject: Re: vibration in slr cameras Message-ID: <287@tpvax.fluke.UUCP> Date: Mon, 4-Jun-84 13:37:24 EDT Article-I.D.: tpvax.287 Posted: Mon Jun 4 13:37:24 1984 Date-Received: Wed, 6-Jun-84 06:48:17 EDT References: <697@decwrl.UUCP> Organization: John Fluke Mfg. Co., Everett, WA Lines: 37 I agree with the assesment in the Lieca publication; all this take about mirror slap-back and focal plane blur is really nonsense. So is this affliction for tripods. Don't get me wrong, tripods are required in some cases but, for speeds beyond 1/60th of a second they are getting in the way. Taking a tip from marksman: take a deep slow breath, hold it, squeeze (press firmly with a consistant force) the shutter as you start to hold your breath, resume breating. As for using a medium aperature for clarity, never heard of that until I started reading this group. Does someone have a logical (i.e. the physics of why this is). Sounds to me like someone is going off on a mislead tangent. Also,in selecting a film for maximum sharpness I selected Ilfords (although any manufacturer produces a simular type of film and developer, almost) FP4, a slow-medium speed (asa 125) fine grain film, developed in Ilfords Microfine, High energy developer, that allows the film speed of FP4 to be increased to ASA 200 with a loss of sharpness (you may actually go as high as 320, but you're losing the fine grain). In addition, I use the Microfine developer in a diluted solution ( 1 : 1 ), which the manufacturer claims (and I also concur) increases the accutance of the film. As for the camera and equipment end of it, I would recomend that you use good-quality (at least the manufacturers lens, as apposed to bargain brands) lens, with a fixed focal lenth (sorry zoom lovers, they are great but have their limitations). Wide angle lenses (for what I know) are not less sharp then normal or telephoto types. It may appear that way because objects are smaller in relation to the film size and hence require significantly more enlargement to be the same size as an object taken through a normal lens. well what do I know anyway, Bruce Golub John-boy Mfg. etc.