the 1/focal length rule really only applies to film/4x6 prints. If you are going to crop (like I will have to on this baby) I assure you that shutter speed alone may not be enough. I'm going to shoot with SR on.
On Wed, Feb 23, 2011 at 5:44 PM, Paul Stenquist <[email protected]> wrote: > I've shot off the tripod both with shake reduction on and off. Doesn't seem > to make a difference. But you definitely don't need it at 1/2500th. Mirror > slap is not a factor either. Hell, mirror slap isn't a factor at anything > over 1/125th or so. > Paul > On Feb 23, 2011, at 5:36 PM, Darren Addy wrote: > >> This may seem like a silly question, but... >> I'm going to try to take a handheld image of the ISS (International >> Space Station) on a flyover tonight. It goes darn near directly over >> the top of me and is early enough that I should be able to get it for >> almost it's entire arc of the sky. After doing some research, it >> appears that you need a darn fast shutter speed to freeze the motion >> of the thing, as it is really cooking along. I will be trying it with >> my Tamron SP 500mm mirror lens. >> The exposure I will be attempting will be 1/2500 @ f/8 ISO: 3200 on my K-x. >> >> I won't be able to use the mirror-up/self-timer so there will be >> mirror slap followed by a 1/2500th exposure. Does anyone have any data >> (or opinions) on whether shake reduction should be ON or OFF? >> >> (Even at an equiv. 750mm focal length, this is like shooting a >> slightly large STAR. It is going to be small in scale to the frame). >> Thanks for any input. I've got about 2-1/2 hours till flyover. >> >> -- >> PDML Pentax-Discuss Mail List >> [email protected] >> http://pdml.net/mailman/listinfo/pdml_pdml.net >> to UNSUBSCRIBE from the PDML, please visit the link directly above and >> follow the directions. > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. > -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
