OT: What Focal Length

2011-06-12 Thread Walter Hamler
http://walthamler.smugmug.com/Photography/Micro-Four-Thirds-Gallery/16211247_u3uwa#1333816493_QWjXf7X The last two images were taken in our local camera store. One is captioned that it was shot with the EPL2 and the standard lens set at 14mm (28 equiv). The next image is with the OLY WA lens adapt

Re: OT: What Focal Length

2011-06-12 Thread John Francis
On Sun, Jun 12, 2011 at 03:46:38PM -0400, Walter Hamler wrote: > http://walthamler.smugmug.com/Photography/Micro-Four-Thirds-Gallery/16211247_u3uwa#1333816493_QWjXf7X > > The last two images were taken in our local camera store. One is > captioned that it was shot with the EPL2 and the standard le

Re: OT: What Focal Length

2011-06-12 Thread David Parsons
I'd say that the focal length is 14mm with a .8x WA converter. Or equivalent to 11.2mm. Are we going to keep referencing Effective Focal Lengths of 135 film forever? We all know that focal length doesn't change with film format size, so why keep using a marketing term? If you really feel the ne

Re: OT: What Focal Length

2011-06-12 Thread Walter Hamler
Thanks for the replies. I had not been able to find anywhere that the magnification factor was 0.8. That would have made a lot of sense had I known :-) As to the "rant", I hear it all the time. I an 69, feel older most of the time, and don't have the desire to change my thinking process. It works

Re: OT: What Focal Length

2011-06-12 Thread Steven Desjardins
The problem is that most of us don't know the FoV in degrees. We know it in 35 mm equivalent. It's the unit that everyone knows. On Sun, Jun 12, 2011 at 5:33 PM, David Parsons wrote: > I'd say that the focal length is 14mm with a .8x WA converter.  Or > equivalent to 11.2mm. > > Are we going to

Re: OT: What Focal Length

2011-06-12 Thread John Francis
On Sun, Jun 12, 2011 at 05:33:59PM -0400, David Parsons wrote: > > Are we going to keep referencing Effective Focal Lengths of 135 film > forever? We all know that focal length doesn't change with film > format size, so why keep using a marketing term? If you really feel > the need to compare, u

Re: OT: What Focal Length

2011-06-12 Thread Rob Studdert
On 13 June 2011 10:07, John Francis wrote: > "35mm equivalent focal length" is every bit as directly comparable as > "angle of view",  They are both numerical measures which can be used > to compare different system formats, with the advantage that one of > them can be found printed on most lense