Archived posting to the Leica Users Group, 2001/04/17
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]- ----- Original Message ----- From: "Austin Franklin" <darkroom@ix.netcom.com> To: <leica-users@mejac.palo-alto.ca.us> Sent: Tuesday, April 17, 2001 11:19 AM Subject: RE: [Leica] Was Medium format camera (now pit-bull arena) > > >>>> > B. The larger format meant less likelihood of blurring the picture at slow shutter speeds from camera movement. > > > > > >>> I don't understand how that follows? > > > > Yeah, it's one of those things you have to experience to understand. > > That physically and logically makes no sense. Please explain how larger film size has anything to do with blurring. OK, this is an empirical knowledge thing that I can't easily explain without being picked apart on the fine points, but, I'll try. To get the final same size negative image (of a football player, say) and DOF at a particular f-stop on 35mm, I'd have to use a moderate tele (probably a 90mm,) compared to the Rollei's 80mm. Therefore, I'd have to be more careful in the exciting moment to squeeze the release, to avoid camera movement with the 35mm tele, else the end of the lens swings in an arc, possibly causing blur. (Not to mention [because it is not a format issue] that with the camera against my chest, when I push the button, the camera can't be deflected like an RF at eye level can.) Of course, since I'm shooting with the Rollei and my bigole Honeywell Strobe at 1/250th, and you're using your RF at 1/50th, I'm in a better position to eliminate camera movement as a factor in blurring the shot. Remember, we're in 1963, we have to pull a print right after the ball game, dry it (no resin coat paper, remember?) and get it to the bus station so it can be on the regional Sports page the next morning. And, if this doesn't jazz you, talk to some of the guys who usta shoot Speeds in WWII, and let them tell you about their handheld shots at low shutter speeds on 4x5. > > > > C. You have higher strobe sync speeds, > > > > > >>>> That is true, but by virtue of the leaf shutter...which > > has its downsides > > >>>> too. > > > > I don't see a downside to faster sync speeds > > Not from the faster sync speeds, but leaf shutters in general. At higher > shutter speeds, and wide apertures, their speeds are not accurate. With a > strobe, that will not matter, but in available light use, that can be a > significant issue. We were ONLY talking about faster sync speeds, not available light, not accurate shutters, not any other "significant issues."