Cory
10-13-2009, 10:09 PM
<p class="MsoNormal"]Ok, let me give an example of what I would be wanting to do,
explain how my camera settings and a filter would accomplish that… and see if I
know what I’m talking about. This isn’t the exact scenario I ran into, but it
draws a more clear picture (heh, no pun intended).<o:p></o:p>
<p class="MsoNormal"]If want to take a picture of, say, a baseball player up to
bat and I want to have the batter in focus, the background blurred, and catch
the ‘motion’ of the bat swing (i.e. the bat itself would be blurred, hopefully
without blurring the batter much), then I’d want to set a fast aperture (say,
2.8) but have the shutter remain open long enough to catch the blur. Now, if
the shutter stays open too long I overexpose, so I want to darken things… this
is where a darker filter comes in (Neutral Density 1.8? 6 stop equivalent). It
darkens the target shot, allowing me to use a 2.8 f/stop, thereby blurring the
background, yet keeps the lens open long enough to catch some blur without
overexposing. (I know ISO will probably play a part too, but I think it isn’t
the main factor and I would want to keep it low for quality purposes
anyhow?).<o:p></o:p>
<p class="MsoNormal"]<o:p></o:p>So, do I have all that correct?<o:p></o:p>
<p class="MsoNormal"]<o:p></o:p>Main reason for asking is I now have (what I believe will be)
my ‘walk-around’ set of lenses being (all Canon’s) an EF-S 10-22, EF 24-105 4.0
L IS USM, and EF 70-200 2.8 L IS USM, all use 77mm filters. I’ve got (all
B+W’s) a Slim Polarizer for the 10-22, and also have a good
(Kaeseman/MRC/X-Pro/etc) Polarizer, UV/Haze filter, and 8-Star effect filter.
I’m looking at picking up one of the neutral density filters to complete the
basic ‘set’ of filters I might find useful with all these.
explain how my camera settings and a filter would accomplish that… and see if I
know what I’m talking about. This isn’t the exact scenario I ran into, but it
draws a more clear picture (heh, no pun intended).<o:p></o:p>
<p class="MsoNormal"]If want to take a picture of, say, a baseball player up to
bat and I want to have the batter in focus, the background blurred, and catch
the ‘motion’ of the bat swing (i.e. the bat itself would be blurred, hopefully
without blurring the batter much), then I’d want to set a fast aperture (say,
2.8) but have the shutter remain open long enough to catch the blur. Now, if
the shutter stays open too long I overexpose, so I want to darken things… this
is where a darker filter comes in (Neutral Density 1.8? 6 stop equivalent). It
darkens the target shot, allowing me to use a 2.8 f/stop, thereby blurring the
background, yet keeps the lens open long enough to catch some blur without
overexposing. (I know ISO will probably play a part too, but I think it isn’t
the main factor and I would want to keep it low for quality purposes
anyhow?).<o:p></o:p>
<p class="MsoNormal"]<o:p></o:p>So, do I have all that correct?<o:p></o:p>
<p class="MsoNormal"]<o:p></o:p>Main reason for asking is I now have (what I believe will be)
my ‘walk-around’ set of lenses being (all Canon’s) an EF-S 10-22, EF 24-105 4.0
L IS USM, and EF 70-200 2.8 L IS USM, all use 77mm filters. I’ve got (all
B+W’s) a Slim Polarizer for the 10-22, and also have a good
(Kaeseman/MRC/X-Pro/etc) Polarizer, UV/Haze filter, and 8-Star effect filter.
I’m looking at picking up one of the neutral density filters to complete the
basic ‘set’ of filters I might find useful with all these.