barjohn
Established
RML, you are right about motion blur. I came to the R-D1 from using the Lieca D-Lux3 with images stabalization. I keep forgetting that at 1/15 sec I will introduce motion blur whereas with IS and a much greater DOF you don't see it.
It means I need to find a decent 21 or 28 lens to give me a little more lattitude on focus. Anyone have any extras that are in reason price wise?
It means I need to find a decent 21 or 28 lens to give me a little more lattitude on focus. Anyone have any extras that are in reason price wise?
Joe Mondello
Resu Deretsiger
Here's some with the 40mm Nokton 1.4 in Times Sqaure . . .
http://www.flickr.com/photos/musicandlight/310267776/in/set-72157594398924780/
http://www.flickr.com/photos/musicandlight/310267776/in/set-72157594398924780/
Innerimager
Established
Here's my understanding. DOF is related to 3 factors. 1. focal length by a squared factor 2. aperture by a squared factor and 3. distance from camera to subject directly. In a cropped sensor, 1.5 for the RD-!, to get the same frame you must move further away from the subject. This increases DOF by the percentage distance you have moved. I don't think there is any other factor involved. best....Peterrvaubel said:This is a real hard concept to get your head around. I have succeeded at times but then lost it. But practically speaking, on a reduced frame camera (1.5x in this case) use one F stop larger to get the same bokeh effect. Don't ask why or you will lose your mind.
Rex
bronekkozka
Established
This is the reason I am not a fan of "the crop" x1.5 and have really only loved digital since FF cameras appeared (I am a commercial photographer but have an R2A for home), that said I do want a digi RF, mainly shoot wide lenses so Bokeh is slightly less of an issue for me.
As has been pointed out the crop does aaffect the dof, if you think about the extremes, say a liittle p&s digi, with a little tiny small fingernail sized sensor (poss an f3.5 lens or even 2.8) and a large format 4x5 camera, with a 5.6 lens....with out looking too much at the figures and science...the little p&s will always be sharp (ish) and be very hard to get any oof areas, where as the large format is almost the opposite - at 5.6 the dof is sometimes too shallow (depending on lens and subject etc.)....so same but less exagerated thing with 1.5.
The rule of thumb to open up 1 stop of aperture when shootiing with a cropped camera seems like a really good one.
Bronek
As has been pointed out the crop does aaffect the dof, if you think about the extremes, say a liittle p&s digi, with a little tiny small fingernail sized sensor (poss an f3.5 lens or even 2.8) and a large format 4x5 camera, with a 5.6 lens....with out looking too much at the figures and science...the little p&s will always be sharp (ish) and be very hard to get any oof areas, where as the large format is almost the opposite - at 5.6 the dof is sometimes too shallow (depending on lens and subject etc.)....so same but less exagerated thing with 1.5.
The rule of thumb to open up 1 stop of aperture when shootiing with a cropped camera seems like a really good one.
Bronek