Talk:Lenses for SLR and DSLR cameras

message: I've taken this page about as far as I can, both in terms of knowledge, Wikipedia skills, and time available.
I do feel that a page like this would be very useful on Wikipedia, especially for new DSLR owners and those considering buying a DSLR.
So, if this page is not to be deleted (perhaps with bits of it merged into the Photographic lens page), I'd like to request that others take over the job of revising and completing it. It needs more text where noted, it needs some pictures, it needs references and categories, it needs copyediting.
Maybe it should be reduced in scope to be just for DSLR lenses?
Anyway, it's been interesting so far, and I have put a lot of work into it (much more than I expected when I started out), so I hope that the page does survive in some form or other. --RenniePet 23:24, 19 September 2007 (UTC)
thread_title:  The future (if any) of this page 

message: RenniePet, I object to you using a bunch of Vincent Bockaert (dpreview) sources; many of them seem to be not very relevant to the points you've attached them to.  And some are very flawed, like the idea that the normal lens captures a field of view similar to that of the human eye; poppycock, yet commonly repeated!  If you must state that as one interpretation of normal, cite a more reliable source, but also cite sources with a more sensible viewpoint on it.  It is my experience that Bockaert articles are full of minor misstatements and confusions (like the nonsensical "The FOV associated with a focal length is usually based on the 35mm film photography, given the popularity of this format over other formats."); I did convince him to fix a couple of them; they seem not to be reviewed by anyone with an in-depth knowledge of photographic technology and terminology.  Many better sources are readily available, like this 1908 book that defines wide, tele, and normal w.r.t. the diagonal, as is conventional, without mentioning field of view of human vision, which is around 180 degrees.  His "picture angle" terminology is a somewhat unusual alternative for field of view, popularized on a bunch of Nikon sites; but he uses it differently, as if it specifically means diagonal field of view; I don't find any reliable source for this interpretation. Dicklyon 05:30, 24 October 2007 (UTC)
replies: text: Glad that you updated the references I'd added with better ones. I was just trying to find some sources in order to get rid of the "unsourced article" tag, and figured that the ones on DPReview were as good as any. I'll try to find some more (and better) references when I have the time, and convert the external links in the text to references. --RenniePet 11:15, 24 October 2007 (UTC)
thread_title: Flawed refs

message: is what I was looking up... and there is a narrative hook.  If it is not usually continuously variaoble, it cries out for "except ...."  I might find something to add.  FWIW, WRT to above comments, this page seems to be  what I was looking for and does no harm by existing. Where I edited typically to by definition, necessarily might be a better word perhaps.  Midgley (talk) 10:11, 20 December 2014 (UTC)
thread_title:  Continuously variable aperture 

message: What is this graph meant to actually show exactly? I'm trying to wrap my head around it. Is it market share? Production? Without any axis labelled it's frankly useless. OCuin (talk) 20:38, 19 December 2018 (UTC)
replies: text: I'm equally puzzled by this. There's a caption in the file description suggesting it sales, so well done ot Canon for selling 100 lenses in 25 years I guess? No seriously, can somebody add units (It's millions, I assume?) EditorInTheRye (talk) 18:45, 11 July 2021 (UTC)
replies: text: This confused me as well. Without meaningful labels this graph isn't particularly useful. If it can't be improved or replaced with a better version, should it be removed? Gin and Monotonic (talk) 17:00, 5 February 2022 (UTC)
replies: text: I replaced it with an more accurate and expanded chart. --Angerdan (talk) 21:06, 5 July 2023 (UTC)
thread_title:  The graph putting nikon F lenses against Canon EF lenses