Pomp, firstly, am somewhat disappointed not to receive praise for my invention of a new term:-
"vaguarisation" .....
...... a generalisation - only more vague
..... 3
Secondly, this whole "logarithmic focuser" hulabaloo.
This is somewhat perplexing to my mind. Perhaps no-one has reported on it because it does not exist? (o)< The 'BigFoot' of Birdforum - often found in the mouths of several infamous posters :eat: yet outside of that, largely mythical. I am not aware of any, *special* logarithmic focusing mechanism on the SLC HD, or the Swaro EL SV, as no mention of it has been made in any Swarovski marketing that I am aware of, as you will see by a perusal of the
"thoroughly modern" EL microsite, here:
http://el.swarovskioptik.com/en/nature/intro/
From what RonE, and Henry Link have said, the nature of movement of all mechanisms is "logarithmic" with reference to dioptric scale v's degrees rotation of the focus wheel, yet all focus ratio's in the experience of both are linear. Of different speeds (ratios) - but all linear. There is no variable ratio focuser, save for the Pentax Papilio, and Brunton Epoch, and I must admit I have my doubts about that one as well.
Any such real "logarithmic variable focus" would need something like a mini CVT to equalise the differing forces that the sensitive could detect. I have often heard the report of different focusing tensions in different directions - but never in regard to different distances .....
Unless Gijs has some other information, I would think it possible that the description in the 2010 test is an erroneous statement, with any confusion perhaps arising out of the combination of logarithmic nature of all focus wheel movement in diopters, and the unusually close focusing distance of 1.5m.
And yet Gijs seems to make reference to
"the absence of the relatively complicated mechanism for the close focus facility" in
post#54 of the New Swaro Pockets thread. Certainly Ed seems to be of this belief also, and I must admit I had a similar question to yours (
post#110) of this thread, ie.
"In dimensions, possibly, but in number of components?" :h?:
And what is this
"patent" that you refer to? (there's the famous one of course to do with the diopter adjustment integrated into the focus wheel - the real reason for the threats to "cease and desist" that Swaro issued to Nikon, and forced the redesign of the EDGI to the EDGII - nothing to do with the open bridge design in the slightest
So questions need to be answered! :brains:
I would like to see details of the SV and SLC-HD focus mechanism designs vs the (new) SLC design. I would like to see technical illustrations /video simulations. I would like to see the list of the deleted components, and their function, and result. And I would like to see a table each, of the SV and SLC-HD focus movement in diopters vs distance, and how any supposed "logarithmic mechanism" compares to a normal table of same. :cat:
Chosun :gh: