This just asks for login. So not available for me (having switched-on js for zenfolio.com ... not played around any further).
The experience of the 40 made me wonder whether I should really aim to use a 35, as I was previously intending, or a 28 so I could get closer. I do have 42 mp to crop from, which would help.
Does anyone prefer 28 over 35 for SP?
Had 28 (FF) since decennies, stayed with it out of habit (to avoid consumer speak here ... which would be: optimizing one's dreams and then buying - which is not the case in that sense of long term habits).
Afterwards, 35 mostly seems too narrow for me. In fact I fled the 50 - somehow a claustrophic experience if this should be taken as a sense of normal.
28 is challenging, somehow inconspicuously, so to be forced to compose reasonably. Needs some time to get this lesson, so one may use it as special kind of normal lens afterwards.
35 is much easier to handle in this regards. It's just one more variation of a normal length. With 28 you can approach this situation only when being careful. Or one uses it as a the moderately wide lens, which includes nice effects. Which needs to know about, to incorparate.
Or not. Not knowing about the basics, this tends to be a tool for weird expression of undecisiveness then, having a myriad of pictures with a lot being shown on them ... but no-one will know afterwards, what those pictures are about, except, maybe they are funny.
All that time over, I avoided the "normal" normal (50 and neighbours). Instead, to concentrate on a topic of a scene, I had 85 (Nikon), later-on 135 (Zeiss, catching a lot with it on the street, or 100 for macro), later-on 75 (equivalent, with Sigma DP3, macro built-in, which is nice to have for this length - especially for this one, similar thoughts apply here as for the 28 from the other way round, as one may learn to use it as a stretched normal and forget about the tele effects).
Coming very late, measured in decennies, I enjoy a bit of zooming now, 12-24 with APS-C (with Pentax), being 18-36 equiv, so the 35 is approached on one end. Why not? After some time I just don't care that much any more. Composition should get off for the ends. And that's what it does.
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Apart from considerations with many words, let's face a simple fact regarding all everyday show with omnipresent gadgets now ...
and all world seems being trained to accept 28 (equiv) as an idea of normal field of view, when taking pictures. Who wants to invest a second thought then, except a minority?
For the disadvantage of this field of view, see above.